HomeMy WebLinkAboutApplication-PermitGarfield Counly Building & Planning Department 108 8th Street Suite 401 Glenwood Springs, CO 81601-Phone: (970)945-8212 Fax: (970)384-3470 Issue Date: 10/25/2011 Expires: 04/22/2012
Project Address PARACHUTE, CO 81635-Owner Information JOAN L SAVAGE Contractor(s) Proposed Construction I Details Parcel No. 240720400050 Address PO Box 1926 Rifle CO 81650 PO Box 1926
Rifle CO 81650 Phone Road grading to allow access to and from various pad sites. FEES DUE FEES PAID Subdivision Section Township Range Phone Cell 970-625-1675 Primary Contractor Required
Inspections: Fo' l"'peotlo"' "" ' 1 ( 888)868-5306 Inspection IVR Valuation: $0.00 Total Sq Feet: 0 See Permit Record Fee Amount· lnv Total Paytype Amt Paid Amt Due Major Grading Fee
Total: Tuesday, October 25, 2011 $400.00 $400.00 lnv # GRAD-10-11-21471 $ 400.00 Check# 747605 $400.00 $0.00 Building Department Copy 2 I
Encana PK21/PI20 Road Grading 1 2 3 4 5 6 7 g GARFIELD COUNTY GRADING PERMIT APPLICATION 108 8th Street, Suite 40I , Glenwood Springs, Co 81601 Phone: 970-945-8212 I Fax: 970-384-3470
I Inspection Line: 888-868-5306 www.garfield-county.com Parcel No: (this information is available at the assessors office 970-945-9134) 2407-204-00-050, 2407-212-00-051 Job Address:
(if an address bas not been assigned, please provide Cr, Hwy or Street Name & City) or and legal description Sections 20 & 21, Township 7 South, Range 95 West, Garfield County, CO Lot
No: Block No: Subd./Exemption: Owner: (property owner) Encana and Mailing Address 2717 Cty Rd. 2151Parachute, CO 81635 l{!hoJ 285-2825 Joan L. & .fchll 'tN. Savage P.O. Box 1926 I Rifle,
CO 81650 (970) £foc ngaec ~re: termt.n ed Mailing Address Ph: Architect I En~ineer: River City onsultants Mailing Address 744 Horizon Ct. Ste lll Grand Junction, CO 81506 Ph: (970} 241-4722
Sq. Ft. of Grading: 5t;ffl I Cu. Yd. ofGrading: 15,148 cut I 13,326 fill Describe Work: Road grading to allow access to and from various pad sites. OCT 1 7 2011 AltPh; AltPh: Alt Ph:
9 ALL UTILITIES MUST BE LOCATED PRIOR TO ANY GRADING NOTICE All1h.2J:i.lx. This application for a Grading Permit must be signed by the Owner of the property, described above, or an authorized
agent If the signature below is not that of the Owner, a separate letter of authority, signed by the Owner, must be provided with this Application. Leea! Aouu. A Grading Permit canoot
be issued without proof oflegaland adequate access to the property for purposes of inspections by the Building Department. Other Permits. Multiple separate permits may be required: (I)
State Electrical Permit, (2) County ISDS Permit, (3) another permit required for use on the property identified above, e.g. State or County Highway/Road Access or a State Wastewater
Discharge Permit. void Permjt. A Permit becomes null and void if the work authorized is not commenced within 180 days of the date of issuance and if work is suspended or abandoned for
a period of 180 days after commencement. CERTIFICATION ' hereby certify that I have read this Application and that the information contained above is true and conect. I understand that
the Building Department accepts the Application, along with the plans md specifications and other data submitted by me or on my bebalf(submittals), based upon my certification as to
accuracy. Assuming completeness of the submittals and approval of this Application, a Permit will be issued granting permission to me, as Owner, to construct the structure(s) and facilities
detailed on the submittals reviewed by the Building Department. In consideration of the issuance of the g Permi~ I ayee that I and my agents will comply with provisions of any federal,
state or local law regulating the work and the Garfield County Building Code, ISDS regulations and applicable land use regulations (County Regulation(s)). I acknowledge that the Permit
may be suspended or revoked, upon notice from the County, if the location, construction or use of the structure(s) and facility(ies), described above, are not in compliance with County
Regulation(s) or any other applicable law. I hereby pant permission to the Building Department to enter the property, described above, to inspect the work. I further acknowledge that
the issuance of the Permit does not prevent the Building Official from: (I) requiring the correction o(errors in the submittals, if any, discovered after issuance; or (2) stopping construction
or use of the structure(s) or facility(ies) if such is in violation of County Regulation(s) or any other applicable law. Review of this Application, including submittals, and inspections
of the work by the Building Department do not constitute an acceptance of responsibility or liability by the County of errors, omissions or discrepancies. As the Owner, I acknowledge
that responsibility for compliance with federa~ state and local laws and County Regulations rest with me and my authorized agents, including without limitation my architect designer,
engineer and/or builder. ·~z-;_ Z/""' •=c.•c. .. ,cAT ... ABOV, OWNERS SIGNATURE DATE 10/14/2011 . ' ..''~ ~: ·. ~~·-· .. STAFF USE ONLY The fin~ncial securi'?' shall be held by ~arfie
ld County until vegetation has been successfully reestabhs.hed accordm~ '?.the Reclamat~on Standards in the Garfield County Weed Management Plan . . It as the respons1b1hty. of the ~pphcant
to contact the County, upon successful re-vegetation establishment, to request an mspecllon for security release consideration. Contact person: Steve Anthony, County Vegetation Manager,
ph: 625-860 I Fees Paid & Date: ( O-lq-Permit Fee: YOO 4tCt05 oo Grading Permit: Issue Date: ;o.).-s-1 DATE Balance Due: -
BEAVER BROOK ENGINEERING LLC PO BOX 362 GLENWOOD SPRINGS CO 81602 • 970-404-7093 • JOHN_NIEWOEHNER@YAHOO.COM October 24, 2011 Mr. Andy Schwaller Chief Building Official Garfield County
Building and Planning Department 108 8'" Street, Suite 401 Glenwood Springs, CO 1602 RE: GRAD-10-11-2255, Encana road Dear Andy, I reviewed the grading permit submitted by Encana for
3,034-foot long road access gas pads southwest of Battlement Mesa. The road crosses Encana property and Savage property. They have the applicable easement documents for the Savage property
crossings. Encana has prvided a bond for $4,250 cover cover the re-vegetation of the cut and fill slopes. Steve Anthony has been sent the re-vegetation plan. I recommend approval of
the grading permit if Steve Anthony is okay with the re-vegetation plan. If you have any questions or comments feel free to contact me. Sincerely, John Niewoehner PE 1
Permit BOND (License or Permit· Continuous) Bond No. 105500998 Travelers Casualty and Surety Company of America One Tower Square, Hartford, CT 06183 KNOW ALL MEN BY THESE PRESENTS: THAT
WE, Encana Oil & Gas IUSAl Inc., as Principal, and Travelers Casualty and Surety Company of America, a corporation duly incorporated under the laws of the State of Connecticut and authorized
to do business in the State of Colorado, as Surety, are held and firmly bound unto Garfield County. Board of County Commissioners, as Obligee, in the penal sum of Four Thousand Two Hundred
Fifty and no/1 00 ($4.250.00) Dollars, for the payment of which we hereby bind ourselves, our heirs, executors and administrators, jointly and severally, by these presents. WHEREAS,
the Principal has obtained or is about to obtain a license or permit for PK21-PI20 Road Grading covering 1.7 acres located in Sections 20 and 21. T7W. R95W: SW 1/4 of the NW1/4 Sec.
21 and SE 1/4 of Section 20, 6th Principal Meridian, Garfield County, CO NOW, THEREFORE, THE CONDITIONS OF THIS OBLIGATION ARE SUCH, that if the Principal shall faithfully perform all
duties and protect said Obligee from any damage caused by the Principal's non-compliance with or breach of any laws, statutes, ordinances, rules or regulations, pertaining to the license
or permit issued, then this obligation shall be null and void; otherwise to remain in full force and effect. This bond shall become effective on the 6th, day of September, 2011. PROVIDED,
that regardless of the number of years this bond is in force, the Surety shall not be liable hereunder for a larger amount, in the aggregate, than the penal sum listed above. PROVIDED
FURTHER, that the Surety may terminate its liability hereunder as to future acts of the Principal at any time by giving thirty (30) days written notice of such termination to the Obligee.
SIGNED, SEALED AND DATED this~. day of September, 2011. Encana Oil & Gas (USA) Inc. L}, w.~-/S-2151A (02-00)
WARNIN(3: THIS POWER OF AITORNEY IS INVALID WITHOUT THE RED BORDER ..... POWER OF ATTORNEY TRAVELERSJ Attorney-In Fact No. 219916 Farmington Casualty Company Fidelity and Guaranty Insurance
Company Fidelity and Guaranty Insurance Underwriters, Inc. St. Paul Fire and Marine Insurance Company St. Paul Guardian Insurance Company St. Paul Mercury Insurance Company Travelers
Casualty and Surety Company Travelers Casualty and Surety Company of America United States Fidelity and Guaranty Company Certificate No. 0 0 314 0 5 Q 7 KNOW ALL MEN BY THESE PRESENTS:
That St. Paul Fire and Marine Insurance Company, St. Paul Guardian Insurance Company and St. Paul Mercury Insurance Company are corporations duly organized under the laws of the State
of Minnesota, that Farmington Casualty Company, Travelers Casualty and Surety Company, and Travelers Casualty and Surety Company of America are corporations duly organized under the
laws of the State of Connecticut, that United States Fidelity and Guaranty Company is a corporation duly organized under the laws of the State of Maryland, that Fidelity and Guaranty
Insurance Company is a corporation duly organized under the laws of the State of Iowa, and that Fidelity and Guaranty Insurance Underwriters, Inc., is a corporation duly organized under
the laws of the State of Wisconsin (herein collectively called the ''Companies"), and that the Companies do hereby make, constitute and appoint Teresa D. Kelly, Dan W. Burton, Benjamin
D. Wilcox, and Candace D. Boshears of the City of H , State of Texas , their true and lawful Attomey(s)-in-Fact, each in their separate capacity if more than one is named above, to sign,
execute, seal and acknowledge any and all bonds, recognizances, conditional undertakings and other writings obligatory in the nature thereof on behalf of the Companies in their business
of guaranteeing the fidelity of persons, guaranteeing the performance of contracts and executing or guaranteeing bonds and undertakings required or permitted in any·actions or proceedings
allowed by law. 21st 1 WITNESS WHEREOF, the Companies have caused this instrument to be signed and their corporate seals to be hereto affixed, this-----------' July 2009 · -uay of ,
. State of Connecticut City of Hartford ss. FarmJngton Casualty Company Fidelity and Guaranty Insurance Company Fidelity and Guaranty Insurance Underwriters, Inc. St. Paul Fire and Marine
Insurance Company St. Paul Guardian Insurance Company 0 ~ By: St. Paul Mercury Insurance Company Travelers Casualty and Surety Company Travelers Casualty and Surety Company of America
United States Fidelity and Guaranty Company On this the _2_1 s-:t-:---::-day of _J_u_ly-,-----:---::---::-2,.0.,0_9 __ , before me personally appeared George W. Thompson, who acknowledged
himself to be the Senior Vice President of Fannington Casualty Company, Fidelity and Guaranty Insurance Company, Fidelity and Guaranty Insurance Underwriters, Inc., St. Paul Fire and
Marine Insurance Company, St. Paul Guardian Insurance Company, St. Paul Mercury Insurance Company, Travelers Casualty and Surety Company, Travelers Casualty and Surety Company of America,
and United States Fidelity and Guaranty Company, and that he, as such, being authorized so to do, executed the foregoing instrument for the purposes therein contained by signing on behalf
of the corporations by himself as a duly authorized officer. ~"1. Witness Whereof, I hereunto set my hand and official seal. ~ ---" .y Commission expires the 30th day of June, 2011.
58440-4·09 Printed in U.S.A. WARNING: THIS POWER OF ATTORNEY IS INVALID WITHOUT THE RED BORDER
WARNING: THIS POWER OF ATTORNEY IS INVALID WITHOUT THE RED BORDER This Power of Attorney is granted under and by the authority of the following resolutions adopted by the Boards of Directors
of Fannington Casualty Company, Fidelity and Guaranty Insurance Company, Fidelity and Guaranty Insurance Underwriters, Inc., St. Paul Fire and Marine Insurance Company, St. Paul Guardian
Insurance Company, St. Paul Mercury Insurance Company, Travelers Casualty and Surety Company, Travelers Casualty and Surety Company of America, and United States Fidelity and Guaranty
Company, which resolutions are now in full force and effect, reading as follows: RESOLVED, that the Chainnan, the President, any Vice Chainnan, any Executive Vice President, any Senior
Vice President, any Vice President, any Second Vic President, the Treasurer, any Assistant Treasurer, the Corporate Secretary or any Assistant Secretary may appoint Attorneys-in-Fact
and Agents to act for and on behalf of the Company and may give such appointee such authority as his or her certificate of authority may prescribe to sign with the Company's name and
seal with the Company's seal bonds, recognizances, contracts of indemnity, and other writings obligatory in the nature of a bond, recognizance, or conditional undertaking, and any of
said officers or the Board of Directors at any time may remove any such appointee and revoke the power given him or her; and it is FURTHER RESOLVED, that the Chainnan, the President,
any Vice Chainnan, any Executive Vice President, any Senior Vice President or any Vice President may delegate all or any part of the foregoing authority to one or more officers or employees
of this Company, Provided that each such delegation is in writing and a copy thereof is filed in the office of the Secretary; and it is FURTHER RESOLVED, that any bond, recognizance,
contract of indemnity, or writing obligatory in the nature of a bond, recognizance, or conditional undertaking shall be valid and binding upon the Company when (a) signed by the President,
any Vice Chairman, any Executive Vice President, any Senior Vice President or any Vice President, any Second Vice President, the Treasurer, any Assistant Treasurer, the Corporate Secretary
or any Assistant Secretary and duly attested and sealed with the Company's seal by a Secretary or Assistant Secretary; or (b) duly executed (under seal, if required) by one or more Attorneys-in-Fact
and Agents pursuant to the power prescribed in his or her certificate or their certificates of authority or by one or more Company officers pursuant to a written delegation of authority;
and it is FURTHER RESOLVED, that the signature of each of the following officers: President, any Ex:ecutive Vice President, any Senior Vice President, any Vice President, any Assistant
Vice President, any Secretary, any Assistant Secretary, and the seal of the Company may be affixed by facsimile to any Power of Attorney or to any certificate relating thereto appointing
Resident Vice Presidents, Resident Assistant Secretaries or Attorneys-in-Fact for purposes only of executing and attesting bonds and undertakings and other writings obligatory in the
nature thereof, and any such Power of Attorney or certificate bearing such facsimile signature or facsimile seal shall be valid and binding upon the Company and any such power so executed
and certified by such facsimile signature and facsimile seal shall be valid and binding on the Company in the future with respect to any bond or understanding to which it is attached.
I,Kori M. Johanson, the undersigned,Assistant Secretary, of Farmington Casualty Company, Fidelity and Guaranty Insurance Company, Fidelity and Guaranty Insurance Underwriters, Inc.,
St. Paul Fire and Marine Insurance Company, St. Paul Guardian_.JpslJrance c;pmpany, St. Paul Mercury Insurance Company, Travelers Casualty and Surety Company, Travelers Casualty and
Surety Company of America, and U~J~,d~~fes Fi~,e4fX:and g_u~~!fliY Company do hereby certify that the above and foregoing is a true and correct copy of the Power of Attorney executed
by said Co~pat?-i.e:s>wll~r;:h:!_S_ in'-fllll fo~ce;-ena effect and has not been revoked. ;~, ' ~ ~ To verify the authenticity of this Power of Attorney, calll-800-421-3880 or contact
us at www.travelersbond.com. Please refer to the Attorney-In-Fact number, the above-named individuals and the details of the bond to which the power is attached. WARNING: THIS POWER
OF ATTORNEY IS INVALID WITHOUT THE RED BORDER
) Battlement Mesa /I -PROPOSED ROAD(+/-t,842 FEET ENCANA) ---PROPOSED ROAD(+/-1,192FEETSAVAGE) -EXISTING ROAD 'l9 BLM Wasatch Surveying Associates 906 Main Street Evanston, Wyoming 82930
Phone No. (307) 789-4545 Fax 307-789-5722 Savage Gardner Pavisich Bosley B.L.M. B.L.M. ~-,,, BLM '\ EnCana Oil & Gas (USA) Inc. PROPOSED ROAD GRADING PK-21 to PI-20 SECTIONS 20 & 2 1,
T7S, R95W, 6th, P.M. GARFIELD COUNTY, COLORADO PROJECT NUMBER 11 -04-31 VICINITY MAP DATE: 8/10/11 SCALE: I" • 2000' Furr 1 of 1
) ) GARFIELD COUNTY BUILDING AND PLANNING DEPARTMENT PAYMENT AGREEMENT FORM (Shall be submitted with application) GARFIELD COUNTY (hereinafter COUNTY) and Encana Oil & Gas (USA) Inc.
____ Property Owner (hereinafter OWNER) agree as follows: 1. OWNER has submitted to COUNTY an application for _G_r_ad_in_g_P_er_m_it ___ _ PK21/PI20 Road Grading (hereinafter, THE PROJECT).
2. OWNER understands and agrees that Garfield County Resolution No. 98-09, as amended, establishes a fee schedule for each type of subdivision or land use review applications, and the
guidelines for the administration of the fee structure. 3. OWNER and COUNTY agree that because of the size, nature or scope of the proposed project, it is not possible at this time to
ascertain the full extent of the costs involved in processing the application. OWNER agrees to make payment of the Base Fee, established for the PROJECT, and to thereafter permit additional
costs to be billed to OWNER. OWNER agrees to make additional payments upon notification by the COUNTY when they are necessary as costs are incurred. 4. The Base Fee shall be in addition
to and exclusive of any cost for publication or cost of consulting service determined necessary by the Board of County Commissioners for the consideration of an application or additional
COUNTY staff time or expense not covered by tile Base Fee. If actual recorded costs exceed the initial Base Fee, OWNER shall pay additional billings to COUNTY to reimburse the COUNTY
for the processing of the PROJECT mentioned above. OWNER acknowledges that all billing shall be paid prior to the final consideration by the COUNTY of any land use permit, zoning amendment,
or subdivision plan. PROPERTY OWNER (OR AUTHORIZED REPRESENTATIVE) LZ~d Signature 10/14/2011 Date Renata Busch Print Name Mailing Address: 2717 County Road 215 PoNlchute, CO 81635 Page
4
) 1111 ~\··• ~:n~~·"'~~M1J !ll•,tf~·~ li~:ft,,:~·~~~h.lft•'~ ~~~~ IIIII Reccpllon": 801714 04/22/2011 04 :26 :38 PN Jean Alberico 1 of 1 Rec Fee:$ 11.00 Doc Fee -0 .00 GARFIELD COUNTY
CO STATEMENT OF AUTHORITY Pursuant to C.R.S. §38-30 -172, the undecsigned executes this Statement of Authot·.U;y on behalf of _Encana Oil & Gas (USA) Inc. a corporation (corporation,
limited l i ability company, general partnership , registered limited liability partnexship, reqistered l. im iLecl llablllLy l .imlLt::tl v<n Lm~r::;hlp, limited partnership association,
government agency, trust or other), an entity other than an individual, capable of holdi.ng title to real property (tho "Entity"), and states as follows: The name of. the Entity is Encana
Oil & Gas (USA) Inc. and i s formed under the laws of of the State of Delaware The rna i l. i.ng address for t he Entity is 370 17th Street, Suite 1_?.Q9 _ ___ .Qwvcr, co BoU>< Thn nam~
~nd/nr poAi~inn nf the person execute instruments conveying, encumbering, authorized to or otherwise al:fet;ting title to real property on behalf of the Entity is Renata Busch, Jason
Eckman. Mike Herndon, and Brett Crabb The limitation o upon Lhc ...tuthority of the person named above or holding the position described above to bind the l~nt ity are as tollm-1s: _!!ign
p~rrnit applications and permits issued by Garfield County !if no l imitations, insert "None") Other matters concern ing the manner in which the t•:ntity tlt::al:::; wlLlt any i n l.er.est
in real property a r e : (if no othe -r rna t tcr , l e ave t his s ection blank) EXECU'rED thi s ~E;..:.ril'--------.,....--' 1~ ~ A S.iy11c'1Lutc : 47 ~-----uety u r No.mc (typed or
printed. Darrin J. Henke Ti tle ( i f a ny) : Vic~-pres!d~r1t ~1'1\TF. OF Colorado ) ____ )SS . COUNTV Ol•' Denver ) The foregoing instrument was acknowledged before me t hiH J'-/r.lay
of April ~-. ·--··--·-' :.!ujJ_ by DarrinJ. Henke __ . ,Oilbehalt ot En~~<!. Oil & Gas (USA} Inc. , a Delaware GQ!P-OratiQ!'l. ____ --·-----OS/09 Witness my hand and off i cial· seal.
My convnissi on cxp~~~s~ y}puL /), f N4 .~:n~.I\P .'. ... .· .---··· · .. .. . .... , ! ·': ·.· "\. • v •.! "1 • • • . : · · · ... .· .. ·. . -·. .. ..· .. · '' t :· . \ ... , . 7 J£1d~-.........
(Notar.y... ..P..u..b...l.i..c..) -KHEMARAT SUTHIWAN Notary Public: Stafl ol COlorado
) ) October 13, 2011 Attention: Andy Schwaller Garfield County Auilding & rimming Department I 08 Eighth Street, Suite 40 I Glenwood Springs, Colorado 8160 I Re: Grading Permit Dear
Mr. Schwaller encana,. ~~ In association with Encana's Grading Permit Application Submission, this letter shall serve as notice that Encana will comply with all ofthc terms and conditions
associated with rights to construct the road as set forth in the below listed documcnl(s). Document Type Right-of-Way Easement Tcnn Access Agreement Date 10/10/20 II 1011012011 Gt·antor
Savage etal Encana Rccordin2 Data 809275 809276 Copies of the foregoing documents have been provided to Getrfield County with the submittal ofthe Grading Permit Application. Sincerely,
Encana Oil & Clas (liSA) Inc. By ~4h~ Land Negotiator cc Ricardo Gallegos Team Lead, South Rockies Land Encana Oil & Gas (USA) Inc 2717 County Road 21!1, Suite 100 Parachute, Colorado
United Stoles 61635 I 970.285.2600 f 970 28!J 261U www.oncana.com
lill wr\ !UI'I",'iHll,lliiU"'lf,lil\~tiUra'~'lrl~ ljo,.Uillllll ReceptionH: 755082 • 09/04/2008 10:3B1,3170AOMD JeFaneeROlb{)QigARFIELD COIJNTY CO 1 of 2 Ree Fee:$ . -oo · • ___; <~--•PAGE
DOCUMENT POWER OF ATTORNEY KNOW ALL MEN BY THESE PRESENTS, that the undersigned EnCana Oil & Gas (USA) Inc., a Delaware corporation (the "Corporation") hereby appoints the following
persons as true and lawful attorneys-in-fact with full power to execute and deliver any and all agreements and documents relating to normal course business of the Corporation, including
but not limited to land and operating matters. Such matters shall include but are not limited to the execution of (i) contracts and agreements; (ii) operating agreements; (iii) pooling
agreements; (iv) assignments; (v) leases; (vi) easements and rights-ot~way; and (vii) governmental agency documents. Russell P. Kim mitt Dena L. Lund Ricardo D. Gallegos Third parties
may rely upon the representation of said attorneys-in-fact as to all matters relating to any power granted to said attorneys-in-fact, and no person who may act in reliance upon the authority
granted to said attorneys-in-fact shall incur any liability to the undersigned as a result of permitting said attorneys-in-fact to exercise any such power. Photocopies of this Power
of Attorney may be made and delivered by said attorneys-intact and may be relied upon by any person to the same extent as though the copy were an original. IN WITNESS WHEREOF, EnCana
Oil & Gas (USA) Inc. has caused this Power or Attorney to be executed in its corporate name this jj, '::.___day of ,Jc, ( y , 2007. En CAN A OIL & G(S'cUSA) INC. ~. \' ~ ) I· ·. By:
•,.\ , '· Jeff \I'M;~h"h>.¥>rcsident \ \\'. \ STATE OF COLORADO ) )ss CITY AND COUNTY OF DENVER) Subscribed and sworn to me this I(, l>. day of President ofEnC:ana Oil & Gas (USA) Inc.
WITNESS MY HAND AND OFFICIAL SEAL. My commission expires _________ _ , 2007 by Jeff Wojahn, YVfTHTtv My Commission Expires 03/17/2006
1111 ~II ~1\':iMIL~f.rotlf,~lrl\o!H?:Ir~.lrl".~·~ IIIII ReceptjonH: 755062 . 09/0412008 10:38:37 ~M Je<~Fn R0lb~o~~~Rf'IELD COUNTY CO 2 bf 2 Rec Fee:$11.00 Doo ee . . SECRETARY'S CERTIFICATE
I, Mary A. Viviano, Secretary of EnCana Oil & Gas (USA) Inc. (the "Corporation"), hereby certifY that the attached is a true and correct copy of the original Power of Attorney that resides
in the minute book of the Corporation, appointing Ricardo D. Gallegos as a true and lawful attorney-in-fact, the attached document having been compared by me with the original document
and found to be true in every respect, and that the said Power of Attorney is in full force and effect on this date. DATED at Denver, Colorado, this 12'h day of August, 2008. IN \V1TNESS
WHEREOF, I have hereunto set my hand and affixed the seal of the Corporation as of the 1 i 11 day of August, 2008. Secretary
) ) SEE Payton <§) Ranch LLLP BLM BLM j_ BLM BLM 29 PROPOSED ROAD(+/-1,842 FEET ENCANA) -PROPOSED ROAD (+/-1, 192 FEET SAVAGE) ---350' OFFSET --EXISTING ROAD Wasatch Surveying Associates
906 Main Street Evanston, Wyoming 82930 Phone No. (307) 789-4545 Fax 307-789-5722 Bosley Pavisich ® B.l.M. B.l.M. Gardner @Shore Shore & @) Campbell B.l.M. I I r @I B.l.M. -I (§) --41---yd--~
-t Gardner I _L -I BLM I BLM 28 I I EnCana Oil & Gas PROPOSED ROAD GRADING PK-21 to PI-20 SECTIONS 20 & 21 , T7S, R95W, 6th, P.M. GARFIELD COUNTY, COLORADO PROJECT NUMBER 11-04-31 ASSESSORS
MAP DATE: S/1011 1 SCALE: I" • 2000' Clem ~ Hagen @) Hagen 1 of 1
) ) ) llll~•':n1r.l'J,N\t ril IWH~~~~"'~ ll~. ~·~ IIIII Reception# : 88927~ 10/13/2011 10: 32:41 AN Jean Alberico 1 ol 8 R~c Fee :$46 ~0 Doc Fee: 0 .00 GARFIELD COUNTY CO RIGHT·Of·WAV
EASEMENT AGREEMENT KNOW ALL MEN BY THESE PRESENTS THAT Joan L. Savage, John W. Savage, Jr., Roy E. Savage. MarahaU T. Savage and Daniel W. Savage, whose address Is P.O. Box 1926 Rine,
Colorado 81650, hereinafter referred to as Grantor, for and in consideration of lhe sum of TEN DOLLARS ($10.00) AND OTHER CONSIDERATIONS, the receipt and sutfk:lency of wttldl is hereby
acknowledged, does hereby grant, sell, bargain and convey unto Encana 011 & Gas (USA) Inc., whose address is 370 17111 Street, Suite 1700, Denver, Colorado 80202. hereinafter referred
to as Grantee, its successors aod assigns, a right-of-way and easement for the purpose of locating, surveying, constructing, maintaining, repairing and replacing a road along the line
shown on Exhibit A. attached hereto and by this reference made a part hereof, over. und«, across and through the Land described below, to wit: TgwnahiQ l South. BiDQ.t H Wtat. 6111 P.M.
Section 20: NE/4SEI4 Section 21: NW4SWI4 Gat1ield County, Colorado The tight-ot-way and easement shall be sixty (60) feet wide during construction of the road and shall revert to a permanent
wldlh of thirty (40) feel and eighteen (18) foot driving surface after construction. This right-ot-way and easement shall carry with it the right of ingress and egress to and from, and
access on and along the right-of-way, with the right to use existing roads, for any and all purposes necessaty and incident to the exercise by Grantee of the rights granted herein. During
temporary periods Grantee may use such portion of the Land along and adjacent to the righl·of-way as may be reasonably necessary in connection with construclion, maintenance, repair,
removal or replac:emenl of the road. TO HAVE AND TO HOLD the above described rights and easements, together with all rights necessary to operate and maintain the road over the right·of·way
hereby granted unto the Grantee, Us suooossors and assigns, and the Grantee may assign the fights and easements herein granted, either In whole or In part, subject to the terms of this
grant, and such rights and easements shall be covenants running with the land and be binding upon Grantor, his heirs, legal representatives and successors in title. Grantee may at any
time, and upon permanent abandonment of the right-of-way shall, execute and record a re· conveyance and release hereof, whereupon this right-of-way and easement and all rights and privileges
herein granted shall be fuly canceled and terminated. Grantor reserves the right to the use and enjoyment of the Land except ror the purposes herein granted, but such use shalt not hinder.
conllict or Interfere with Grantee's surface or subsurface rights hereunder or disturb the road. Grantor agrees not to build, create, construct or permit to be built, created or conslructed,
any obstruction, building, lake, engineering works or other structure over or on the right-of-way herein granted. Grantee shall have the right to discharge or redeem for Grantor, In
whole or In part, any mortgage, tax or other lien on the land and thereupon be subrogated to such len and rights Incident thereto. This grant Is subfect to aoo lncorpot'ates by reference,
the terms and conditions of the Surface Uae Agrvvmenl between the parties dated August 23, 2005. VWne$S the eJteculion heteof on _ _..;t...(:. ._ _ ;_, _ _ ~, 2011 . By: ·. i ,, .. Joan
L. Savage l GRANTEE: Encana 011 & Gae (USA) Inc:. · : •• ...1-J .... L /:.:.•--(.'~ i' J a,: ' /-----i:J. ~----v · \...../Ricardo D. Gallegoe Attomey..ln·Fact {J
) ) 1111 wr.~. ~:n1PVM~41~ ~tl~~~r(W.I,W~~.I~~~~~ IIIII ReceptJonij : 809275 10/13/2011 10 : 32 :41 A, Jean Alberico 2 or 8 Rec Fee :$46 .00 Ooc Fee :O 00 GARFIELD COUNTY CO .<~-~· ·
----==--~ . /By: ·' . I .... ( ;.r . Roy ?. Savage V By: ___ ____ _ _ Mlrahall Y. Savage By: Donlel W. Sevngo ACKNOWLEDGMENTS Stole of: C_Qjorado ) ) § County of:_Qufi...,el.._d _ _____
) .. r ' On lhis _;_(')_day of _t'_LLtlL-•--• 2011, before me personally appeared Joan L. Savage, known to be th<l person described in and who executed th~ roregoing instrun.ent, and
who acknowledged to me lhat she executed the same. My commission expires: 'i..f: 11 1/.i.t 'L'. Nota1y Publ~: 1 /A ''· io'. 1 "1< .... .b;,{. J -. -~----··~< {,.Jill._ __ , _ '-''-..
L-;.~.s~tnl-~ ~·' '-<) •••• ••• '1 . ( ,..~. . •• ··".11\ ·~~ .: ·'OAJv (l : 11(1:lt.-... ,. j '\~ ""VU/11 ' )' ·.. SEAL State of: Colorado _____ ) ~·~·· ~· ........ .. coo . ) § County
of:~<J~arfiWii.lcld.,__ ___ --J) On this _J.c._day of _j)( {o 6' .f_.. __, 2011, beforo me personally appeared John W. Savage, Jr., known to be the person described In and who executed
tho foregoing IMtrument, and who acknowledged to me '2" he exccuJ¢ 1~ft9~,lh I ' f' . II I ,' \ C) . .. . .. ,(>V~'{l My commission expires: ....l.J..f!-f:/.!.:.!_L Notary Public: _(::·
. . il~ . tr/. '~·:~ (LIJ~~-~-/··.·;0.<\ ·····~0 . : lfiO fll A-1, ) '!1.'· OoN SBAL ~:~:i:··, •• • ~~~
) ) 1111 wr'• ~:nlrii,!'.-V.I~lHLI&'r.M'"I«I~·'·I~IM·~ IIIII Reception": 889275 101 1312011 10 :32: 41 RM Joan Al ber •co 3 of 8 Reo Fe• :$46 .00 Doc Fee:0 .00 GARF IELD COUNTY CO By
.·. ... -,.-~----,------John w. a ....... Jr. County vf: ONfiold ) ) t . .-> Osrthhs __ day of 2011, before mo petsOnllly appoaNd Join L. Savago, kPUWD Co be tho penon doltribed In and
who executed lho fore&Oinllnefnllhent. ad who acbowledatd to me that ahe ~ed the ume. Myoommisaion explrca: -----~ Nnt~ry PublNI: --------···· ···----SBAL S&Moof. Colcpdo ) ) f Q>unty
of: OvfioJd ) MyGOIMlbsJoo ~~~plres: ---...----Nocaty hbllo: ~---------
) ) 1111 ~. f:f1tWI.1'91J~~ .IW 1-Vf:~li.W.I~~ lr'~~·' IIIII Reception": 809275 19/13/2011 10 ·32 ·41 ~ Jean Alberico 4 or 8 R"c F~e~ · S4fl . 00 Ooo Fee :0 .00 GARFIELD COlJNTY CO Stare
of: _Ql.b.lradsL .. ----·-... __ ) ) § County of: Garficl~-. -·-----._.) On this _ tL:_day of .. ~i...L~~--' ____ , 2011, bcti:xe me J>ersonolly appeared Roy E. Suvago, known to be tho
person described in and who executed the tbrcgoing instrument, and who uckumvledged to mo I bat he executed lhe Name. I I i ' . I I ) I . '· I ,J My commission expil'es: _.(,_1Ll..!..,
! • ·, Notary Public: --· t'\_lU_f /..1 _i!L ·---SEAL~~~··,•~•••••••~-!.!.. ;(")!. l.~ ~· :', .· " {1~· -~ t .. +~<,}n •' •• " tt' 'c , { ·,.. ••• (. • r , •• • ••• \,,_,' ·( '()f(/\1;{:!_..:,"
,, ,~ ,.\.)~·";.!! ...... Stale ot: Color1do ...... J ) § County of:__O,.. a.r.U Jfi.,.c:l,..d_ ____ _ ) State of: Qllwado ____ __ ) ) § County of:.~G!.!lll(fi~old..._ _ _ _ _ ) On this
-!ll-dayof _[~( . t~ /) : , 2011, before me personally appeaNCI Dlniel W. Savage, known to be tho person dcocribcd m ml wbo ox""ted lho fo~gob>g .............. ond wbo 8<kOO~\~Icdged
~ me lhn~ he reculcd tho same. My commis.<;ion expires: . (r_{JL{.I ~ ~:;__ Notary Public:-~ ·' uLl!J_· tl A (/(I. .... ·--.~~ ,-~~, 'TAl'~ SBAL f'' )~9·····~~ f :' ·'o, J(. t. ' : '"'/-'
l!\1 "'-l<'l ' · , . <)'~. \ ·... . I • . ,• ~l: I~·~ O(~tf> 'h\.\~\~
) 1111 WI~• ~:n1WUI-11~ rD. ~1.1-H-:WIItr.~,.lrl~ ~·~ IIIII Recept.ionll ; 009275 IQ/13/2011 10 : 32 :41 Rl1 Je~n Alber leo 5 of 9 Rec Fee ·$46 .00 Doc Fee :0.00 GRRF IE~O COUNTY CO
Slate of: Colo(JdO .. J ) § City and County of:.Oonm_ _ ,_ ) ' '') ll.. . . \ . On this --~ d11y of_\ J h ·I .)I. i , 2011, b4lforc me personolly appeared, Ricardo I>. Olllltgoll, Attorney-In-Fact
for Encana Oil &: Gas (USA) Inc., known to be the porson described in and who exccutoo the foregoing instrument~ and who acknowledged to me th•t he executed the samo.
) ) 1111 lr•~:r'l1rYI.M~.ItRI lfll~~r~r.lrrtiW.J.II't~ ~·~ IIIII Reeeplionh: 889275 10/13/~011 10 : J2: 41 ~ Je•n Albar1co 6 of B Rec Fee $46 .90 Doc Fee:0 00 GARFIELD COUNTY CO EXHIBJT
"A" This Exhibit ''A" is attac:hed to and made a part of that certain Right of Way Ea:s~nl4!nt Agreement by and between Joan L. Savage, John W. Savage, Jr., Roy E. Savage, Marshall T.
Savage and Dnniel W. Snvagc as Grantor and Encana Oil&: Gas (OSA), Inc. as Grantee. Township 7 South. Range 25 West of~ P.M. ~tion 20: Nl.i/4SEf.1 S~tign 2l: NW/4SW/4 Garf-eld Co\mty,
Colorado \ '\ """" 0/<""' II• c~U>U<n ··-~--) stCfiON 21 ~ """•" -·--198.l BlW SE"CS. :10 lr 21 AlUM/NUI.I CAP r~J 8Uol 1\LVMIHVM CAI'-M,.._,,.... $89'06'57"£, 2652. 4L_~ -----------(21iJ-;r-~
--------~-v--v o· S08'J4'JO"W 23.08' IJ'J5'5S"£ 2J.08' SJ5'<f6'20"£ 23.08' SWSI'J2"f .fi.J6" N£1/4 S£1/4 sccnoN 20 ~18"57'J9"W, 1)4,91 ' S74 'J6'46"W. 15.16' 570'15'5-f•W. IJ7.45' S6J"49'15~W.
22.45' APPARENT ~WHER: .JONl l. $.<\VAG( £TAt.. PARC£l HO. 240~ · tL=E=GErN=D. :=---:-:-:----PIJfltJC l/\110 SUIM'Y CCMJ«R • ANQ.C POIHT P. 0.8. POM1 or 8CGINHIHG P.O.(. I'OIHJ or CIIDING
P.O.S.l. I'UIHr UH SCCIICft l.U: q· SOI'iJ0'21"E, 164.55' ---£ Proposed Easemen SIJ'5G'24" W. .J0.95' S4J'49'5t"W, .10.95 ' SS8' .. ti'J8"W. 82.48' S68'52'09"W. 21.0J' s 78'57'J9"1'1.
9of.8 2' NW1/4 SW1/4 SECTION 21 CgRTIFICA TE OF SURVEYOR I. Ted T11991rt ofF~. Cdotldo hetoby certify thai fhl$ map was made from I!Oiea /11lcen during~ ldllal SUIW)IIMde by me or under
my dl~ for EIIQIINI 011 & GM (USA) too. and tNt the I'IISulb of soomwrsr whlc;h are eotrtiQ/y $~~own limon • CORHtR SCCTIOH 21 1912 O.l.O. BRASS CAl'
) ) 1111 W'.i.,:niWU~JI~~~~I ~~~1-t~l~ ~~~~ IIIII Rec ept ion" : 809275 10/13/2011 10 :32: 41 AM Jean Alberico 7 o f 8 Reo Fee :$46 .00 Doc Fee:O.CS GARFIELD COUNTY CO ~J-o-li-n-W-.
S-a-v-ag-e-, J-r.----------By:-...,-.,.,.,.....,--------D•nlol W. S.vayo State of; C.olondo .. _ _____ ) ) County of: Qulkld _____ ) On tiUs ·-··-·cby of ___ -J-2011, hclilfe mo ptn<l!IDIIy
nppeercd Joan l •. &tvogc, known to be tho person described in Md wtiO ex~utcd tha rorcgning in.'ltouucnl, and who aeknowledpd lo me lflet sbc oxec:uted tho san"" My oommisllon expires:
_ . -···-·----Notaty Public: -·· ·-----·---SP.AL Sllllcof: ~------=--> } § County of:._Q!d'~---·· _______ ) On lhill _ _ day of 2011 , botOf't me penoulty appeared John W. Savage, Jr.,
known 10 be the f'CdOI' .totcrl~ in llld who eaecueedlhe ~Wesoina inltnlmlll4, and who eolulowlodeocf to mo that he .:x.cculed lhc same. My llMvnisaion explru: -------NotMY PubHo: .
• --------·-----SllAL
) ) ) 1111 ~"• f:Ji1WJ.M~ IIN.IM'I.IIf~WV,I-irl~' 1111.~·~ IIIII Reception#: 809275 10/1 31 2011 10 :32 : '11 AM Jean Alberico a of 8 Reo Fee :$46 .00 Doc Fee :0 .00 GARFIELD COUNTY
CO Stale uf: _CoiO!'l!dp -···-··_) ) § C'.ounty of: •• ~td...--· ··-----) Ontllis _ _ _ clfty of , 2011, bolU"e me pcrsooally IJlllHil:d Roy H. S;IVage, known to be the por:10n described
in and who oxacuiM the tOro&aiq insln1meo.l, ond who RCknowled~d tu mo that lie oxcculed tbe sa mo. My L'Omnlisslon expires:------··--Notary Public: -·-----···---.. . SEAL ~J"n .. Statoof:~---·_J
C<Huttyor. ..• t~4~~ § -JI... On lhit lctay of _ JICI:IOil dC$Clllbcd in ancl w SUAL State of: <Alloqdo County or. Ouf~e!d ) __ ) § _) On lhi.t __ dltyof --J20ll, be(oro ma persanally
appnred O.niel W. S.vap.laiowato bothepc.n."'n described in lad who executed the foregoing iamurncn.t, ad who acknC'Iwlecf#d to me bl he cxewted tho Slmo. My commiulon c~pl~: ·-----·
. . ... Notary Public:-···· ___ ... _ _ .. ·---------st!AL
) llll~.~.n,,~M~ttU.I~.I~ r¥.1.~tl~~rtt~~~111111 ReceptJon" : 809276 10113/2011 10:32 :41 AM Jean Alberico 1 ol 11 Rec Fee :$61 .00 Doc Fee :0 .00 G~RFIELD COUNTY CO TERM ACCESS AGREEMENT
For Road Use THIS TI;RM ACCESS AGREEMENT rAgreement"), dated effective as of the ----~· day of ·--·~--· ~01 t (the "EffeCtive Date"), Is made by and between Encana Oil & Gas (USA) Inc
with an address of 370 17111 Slleel. SUite 1100, Denver, CO 80202 (referred to as "Encana") and ,loan l.. Savage, John W. Savage . .lr., Roy E. Savage, Marshall T Savage and D;,1niel
W. Savage, P.O. Box 1926. Rifle, CO 81650 (collectively refetred to as "Savage"). WHEHEAS. Enc<ma is the owner of the Road and surface located in the NW\1, of Section 21 -rownship I
South. Range 95 West, 6'' P.M .. Garfield County, Colorado, as Illustrated on Exhibit A attached hereto (the "Road"): and WHEREAS, Savage desires non-e)(cfusive use of the Road for the
purpose of Hct:essing land owned by Scwaue (the ·rurpose') on lands adjacent or proximate to the Road under the terms and conditions of this Agreement NOW, THEREFORE, In consideration
of the mutual covenants and agreements contoined herein, Encana and Savage do hereby agree as follows: 1. TERM. This Agreement shall be for a term of Twenty (20) years commencing on
the Effective Date (ttle "Term"). Notwithstanding anything to the contrary contained In this Agreement, Savage has the right to terminate this Agreement, at any time, by giving Encana
thirty (30 days) written notice of its election to terminate. On or hefore thirty (30) days prior to the expiration of the term of this Agreement. may make a written election to Encana
for an additional five (6) year term (the ~extended Term"). 2. MAINTENANCE. Savage. Its eqlloyees, contractors, sub-contractors, ami authorized agents, shall use the Road with due regard
for the rights of Encana and shall not use the Roads in any way that would impair the rights of Encana. All gales of any ldml or nature shall be kept by Savage in the condition In which
they were found upon entry. l'o the extent possible, Savage shaH not alter the natural flow of any creeks, streams, or Irrigation ditches relative to the Road. 3. NON-EXCLUSIVE USE AND
RESERVATIONS. This Agreement ar~d all other rights hereby granted are exclusive to Savage and Savage's use of the Road Ia limited to the specific Purpose specified herein. This Agreement
does not. In any way whatsoever, convey any water rights or the right to use water to the Savage. Etlcana reserves unto itself and ita' successors and assigns all rights to use the Road
and the rigtlt to aHow third parties to use the Road. 5. AGRICULTURAL LIABILITY. Savage shall take reasonable precautions to avoid damage to agricultural operations on lands adjacent
to the 11oad. Savage shalt have and assumes liability for all cattle, crops or chattel lost as a result of Savage's use of the Road. 6. LIABILITY OF THE PARTIES. SAVAGE COVENANTS AND
AGREES TO FULLY RELEASE, DEFEND, PROTECT, INDEMNIFY, AND HOLD HARMLESS ENCANA, IT'S OFFICERS. DIRECTORS. EMPLOYEES AGENTS, CONTRACTORS AND SUBCONTRACTORS (COllECTIVELY, THE "ENCANA GROUP'')
FROM AND AGAINST EACH ANO EVERY ClAIM, DEMAND OR CAUSE OF ACTION AND liABILITY, COST At'oi>IOA EXPENSE (INCLUDING BUT NOT LIMITED TO REASONABLE ATTORNEY'S Pogo I of8 II
1111 ~• ~~1,rYA'~ \~ ~j,IIN,fi\1, fW, U!lir N.~~~ II II I Recept i on# : 80927G 10 /1312011 10: 32: 41 Rn Jean Alberico 2 o f 11 Reo Fe e :$61 .00 Doc Fea :0 00 GRRF IELO COUNTY CO 7.
FEES AND COSTS INCURRED IN DEFENSE OF ENCANA GROUP) AND FOR DAMAGE OR LOSS IN CONNECTION THEREWITH, WHICH MAY BE MADE OR ASSERTED BY SAVAGE, SAVAGE'S OFFICERS, DIRECTORS, PARTNERS, MEMBERS,
EMPLOYEES AGENTS, CONTRACTORS AND/OR SUBCONTRACTORS (COlLECTIVELY, •sAVAGE GROUP") OR WHICH MAY BE ASSERTED BY ANY THIRD PARTY ON ACCOUNT OF PERSONAL INJURY OR DEATH OR PROPERTY DAMAGE
CAUSED BY, ARISING OUT OF, OR IN ANY WAY INCIDENTAL TO, OR IN CONNECTION WITH SAVAGE'S USE OF THE ROAD, EXCEPT TO THE EXTENT SUCH DAMAGE OR INJURY RESULTS FROM GROSS NEGLIGENCE OF WILLFUL
MISCONDUCT OF ENCANA GROUP. WHERE PERSONAL INJURY. DEATH, OR LOSS OF OR DAMAGE TO PROPERTY IS THE RESULT OF THE JOINT ACTIONS OF OWNERS GROUP AND SAVAGE GROUP, ENCANA'S DUTY OF INDEMNIFICAllON
SHALL BE IN PROPORTION TO ITS ALLOCABLE SHARE OF SUCH ACTION. IT IS EXPRESSLY AGREED THAT THE INDEMNITY OBLIGATION SPECIFICALLY INClUDES, BUT IS NOT LIMITED TO, CLAIMS ARISING UNDER
THE PROVISIONS HEREIN ENTITLED AGRICULTURAL LIABILITY ABOVE, AND All FEDERAL LAWS AND REGULATIONS AND ALL STATE AND LOCAL ENVIRONMENT lAWS, RULES AND REGULATIONS. NEITHER PARTY SHALL
BE LIABLE TO THE OTHER FOR ANY DAMAGES DUE TO FIRE, EARTHQUAKE, FLOOD, WINDSTORM AND OTHER LIKE CASUALTY OR OTHER CAUSES BEYOND ITS REASONABLE CONTROL, NOR FOR DAMAGES CAUSED BY PUBLIC
IMPROVEMENTS OR CONDEMNATtoN PROCEEDINGS. LAWS, RULES ANO REGULA liONS. Savage Bhall at its aole expense c;omply with all fedefal laws and regulations as wei as those of the State of
Colorado and any other govemmental authorfty haYing Jut1sdii;Uon over the Road. savage 8hall also be SOiety responslble for obtaining any and aH penni(S, auctlortzatlons, approvals and
agreements necessary to access, own and conduct its' operatiOns located on lands adjacent or proximate to the Road. 8. DRUGS, ALCOHOL AND FIREARMS. Savage shaft not allow the use, possosslon,
transfer, purchase or sale of llegal drugs, narcotic&, other unlawful substances and materials, alcoholic beverages, firearms. 01 other weapons by Savage or Its contractors, subcontractors,
agents, business Invitees or other Ylsitors while using the Road. 9. HUNTING AND FISHING. No ~. trapping or fishing Ia permitted on or from the Road, and no auch rights ate granted by
this Agreement. 10. NOTICE. Any notice or writlen demand to be given to Encana or Savage may be defivered In person, by fa)( or certlled or registered mall, postage prvpald, addressed
to the party for whom Intended aa follows: Enca11a Oil & Gas (USA) Inc. Attn: S. Ploeanoe Group lead Addfesa: 370 17" Street. Suite 1700 Dtnvet, co 80202 Phone: 726-878-3644 Fox: 7~87~
Page2of8 )
) ) ~~~c~tra~~~~~}~~lll.~!, ~.IW,IWw-~t~·~ I IIII 10ft3/201 I 10 : 3 2 : 4 1 AM Jean Alberico 3 or 11 Reo Fee :S6 1.00 Doc Fee :0.00 GARF IELD COUNTY CO Joan L. Savage, John W. Savage,
Jr. Roy E. Savage, Marshal T. Savage Daniel w. Savage Address: P.O. Box 1926 City/State/Zip: Ri1fe, CO 61650 Phone: Fax: Any party may give written notic:e designating a different address
to substitute for the one above specified when neces$81Y. Notice shaH be deemed given upon receipt 11. GOVERNING LAW. This Agreement and ad matteJs pertaining hereto, Including, but
not limited to, matters ol perfonnance, non-performance, breach, remedie8, procedures, rights, dulles and lnterpre1alioo or construction. shan be governed and detennlned by the laws
of the State of Colorado. 12. MISCELLANEOUS. (a) Entire Ageernent. This Agreement containS 1he eriire agreement between Encana and Savage and any prior oral representations, dlscusalons,
negotiations or understanding concerning this Agreement or Its subject matter shan be of no force and effect. (b) other Agreements; No Warranty. This Agreement i:s subject to aH contracts,
leases, liens, easements and encumbrances or clalma of tltte whk:h may affect lhe Rood and nothing contained herein shall be construed as a covenant or warranty against the existence
of any thereof. (c) Aaalgnmenl The terms and provtalons of this Ag'""*'t shaN inure to the benefit of and be bfnding l4'00 the parties, their respedive heirs, SUCC*SOIS, legal ntpretentatives
and lhlrG-party aaalgna; provided, however, no aaalgnment by Savage uf the rlgh" or obligations hereunder shaH be made without Encana's prior written ooneent, which shall not be unreasonably
withheld. tr Encana's consent to such aNignrnent. It 8hal not be eftecttve until Encana have received an lnstnment or letter executed by savage and Its aasignee evtdenci"'l that such
assignment has occurred and Chat SUCh aaatgnee has assumed all the oblgatlons hereunder. Notwfthatandlng lin/aaavvnent, Savage shall remain lable tor aU obligatiOns hefewlder artaing
prior to auch aNigmlent. Noewtthstandlng anything In Chis Agreement lo the conlraly, SaYage sh8l have the right, in ita sole d$Crelon, to atslgn to any affiliate or subsidiary following
den notice to Encana of such proposed assignment. (d) Tennlnalion. Ebr Party may terminate this Apement upon thirty (30) claVa wrtten notkle to lhe other Party. Termination of thlal\gleement
shal be v.1lhoul preJuclce to any rlgta or obiGations acauklg on or prior 1o kWmination. wtlk:tl rWita and obllgaliona shall a~. (a) Amendmenls. No amendments, changes 01 modillcatlona
to lhla Agreement shall be wild except lithe same are In writing and llgned ~ a d&q al.lthorized rspresentai!Ye of .. d the parties herein. (f) WilNer. Any failure by any ~ to comply
with any of Ita oblgallons, -a.....,..., or condllicn herefn conlalned may be waived by the PII1Y to whom auch complance Ia OMd by an lnetrurneri signed bV the party to whom compflance
18 owed and ~ Pagclof8
identified as a waiver, but not in any other manner. No waiver of, or consent to a change in. any of the provisions of this Agreement shall be deemed or shall constitute a waiver of.
111 cummnt to a change in, other provisions hmeor (wlu~ the r or not similar). nor shall sueh wuive1 conslilule a conlinuing wAiver unless othe1wise expressly provided. (g) Savewllilily.
If ami lot :;o long as any provision of this Agreement shall be invalid or unenll)fceable in any lllriSdiclion rot any re<·tson wllalsoever, l.iU\.h invalidity or unenlon:eability shall
not affect the validity or enforceability ol such provision in any other jurisdictions. or of <my other provision of this Agreement, except only so fAr as shall be necessary to give
effect to the construction of such Invalidity, and any such invalid provision shall be deemed severed from this Agreement without affecting the validity of lhe balance of lhis Agreement.
In the event that any provision in this Agreement Is determined to be invalid or unenforceable, the parties shall negotiate In good faith to agree upon a valid and enforceable replacement
provision that will effectuate the intent ot the parties sel forth herein. (h) Counterparts and Effectiveness of Agreement This Agreement may be executed in counterparts. each of whi(:h
shall be deemed an original instrument. but :-~ 11 ~ll r.h counterparts together ~hall constitute but one agreement. This Agreement shall not be offeclive unlit il has harm !;ignP.d
by all parties. IN WITNESS WHEREOF, tho p<1tli1m have executed this Agreement lhe day and year indicated below but effective as of the Effective Dale. Encane ~·&-G~.s (USA) Inc. /) J..//'.-£,l.'
') .---..-·~ ' I .,./'"' .'V' By: --. ~· ,/·\\"~ ) \--Name: Ricardo D. Gallegos · Titre: Allornay-lr.l·FaGI I 1I Date: ~ll·"'~~ ' By:~--· _ :_ ___.~ -Natne: Joan l. Savage Date: __ _,__
·~-~------By: {, /• ' .., ....,:._ --..,.----Name: J~ S~wage, Jr. .... /. Datal _________ _ Page 4 of8 ) )
) ) 1111 WI\'• n~.~h~ mwr ,I" liN r¥1 r+U 111~·< rtf~'~·~ IIIII Reception": 809276 10/13/2011 10 : 32 :41 R" Jean AlDer1co 5 of 11 Rec Fee :$61 .00 Doc Fee : 0.00 GARFIELD COUNTY CO
~ By :_ --~-_.,;:__,._ ,/_;____,_ _~ Name: Roy E. Savage I Dale: . J · ~---~ -'. -_ :'·..·.----By: _ _ Narne: Mcushall T. Savage Date: __________ _ By. Name: Daniel W. Savage Date: ____
-----ACKNOWLEDGEMENTS State of Colorado I . • I ) § County of ..i____jj_f.-'..!...!.f__) ( ' • I lhe foregoing Instrument was acknowledged before me this_; _•l_ day ol _ilk_L_~ , 2011
by Joan l. Savage, known to be the person described In and who executed the foregoing instrument. ami who ucknowtedged to me that she executed the same. My comntis,sion expires: I t.
•.1 ', '. ---!' ~: -'---___ j;, _:rl ·t.iJ__((_. _ _ Nolaryf,Publc: ,", Pago S of8
1111 Ar-~. ~l,,r'i~~~~~ 111,7.~~ MW IW~ N1~ ~~~ II II I Recept1onn : 809276 1~/13/2011 10: 32 :41 AM Jean Alber i co 6 ol 11 Rec Fee :$61.00 Doc Fea :0 .00 G~RF IELD COUNTY CO ... '.··
l:ly; _____ . ___ -· ., .. . Natne: Roy E. ~avage ---· ·-.1--... .I Ua!e: : · . . -<1 • • , , .• ev._ ... -----·---~ Name: Daniel W. Sava!)O Data: ___ ___ ··--· -----ACKNOWU!DG~MI!N'fS
State of Co!omdo ___ ) )§ County of ) ) l he foregoing lnstnunent was acknowtCKiged beltore me this __ day or , 201 1 by Joan 1.. Savage, known to be the person described in an~ wlto
executed the fo~oing insiTument, t~nd who scknoWiedgQd to tllQ thiJC ~~~ execuled the same. My commission expires: ·--------Nol8ly Public: SEAl )
) ) 1111 lr• ~11,~'iA'-IUt~1, ~~~V. M ~r Hlt,fll,~~~ 11111 Rccepl!onU : OG9276 1a/t3/2011 10:32:41 A~ Jean Alberico 7 or 11 Rec Fee o$61 .09 Doc Fee 0 .00 GARFIELD COUNTY co State of
G!'19!~.--_ ) • I ) § C:ounty of _. 1_ 1_ ~_:.~·-·-) • t ,' • ( The foregoing instrument was acknowledged before me this _ _1 _dayof_· _· ' -'-~: ·'--:----· 201 ·1 by John W. Savage,
Jr .. known Ia be I he person described in ami who executed the foregoing instrument, and who acknowledged to me that he executed the same. : I .r 1 ' !J' it 1 {o ,. . -. c ,.J.;._ ---.
__,_ · -------Notary r ubllc. State of Colorado ____ ) 0 (f 0 I J ) § Cuunly ul l _ ,, _' ,~_._ __ ) , I • . • . rhe foregoing instrument was acknowledged before me this _ t:__ day of
_ l · ~J i. l. , 2011 by Roy E. Savage, known to be the person described In and who executed the foregoing instrument, and who acknowledged to me that he executed the same. I ' I My
""T:'~~~ ___li.L~I_j:[: II o\ ___!_._ t~ ~E'_ ~ ~c;. Notary P~blic: :' lOAN )() 'I \1· :. llfEJ(>ru~ 'Vfll SEAL 11 ;·.~··. /,, (~ .. ...... ~p...~ I; ('( 1\.0\J'l••"'' \l.t.lt.~H\!o-¢0
State of Colorado ) )§ County ot Garield ) The foregoi~::tfument ytas acknowledged before me this __ JL_ day of _ { \ · \ · ----· 2011 by Marshan T. Savage. known l(j be tb~son describ~Jn
ar1d who executed the foregoing instrument, and who acknowledged to me lh~l he elfecutod tho samo. --~rf· ·t\\. .. ll~l~(,;.;...._~ _ Notary Pub ic:: • I I SEAL Pogc 6 of8
1111 M'f•~1,,~A""' I"" II~ l+l~ri\I.WLJ,IW\frl~*·illlll Reception~ : 809276 10/13/201 1 10 :32 :41 AM Jean Alberico 9 of 11 Rec f ee :$61 00 Doc Fae :0 .00 GARF IELD COUNTY CO ) Br:
< < ~~~ • • /Name: Roy e. vage Date: s;.~.1.1 .9-o>• By:._~~::-::----Name: Marshall T. Savage OM&=--=------------Br: flJ_W& oo-~ez.--Name: Dlrial w. savage Date: ( 0r I I 0 ,{ _" ACKNOWLEDGEMENTS
) Stat. of .c9tcodo ) )§ Countyof ) The foregoing lnatrumer1t wee OGicnoWtedaed bebe meW. __ day of . 2011 by Join L S8ltage, known to be the penon dtecribed., •rid who 8li8ClU1ad the
foregoing Instrument, and who ac:knowledged to me that lhe e~ the eame. PageSof8 J
) 1111 W.a.n,.~hUV~I'Pirl« lf\J rft't~frl\t~l(rf', ~·~ IIIII Reception~ : 809276 . 10/13/2011 10 ·32·41 A~ Jean Al ber ico 9 of 11 Roo Foe, $&1.00 Ooc Fee :O 00 GRRF IELD COUNTY CO Stale
of Co!orJdo ) )§ Coontyof ) The foregoing hsiNmer1t was acknowledged before rna this _ _ day of -·-·:--::----:----' 2011 by John W. swage, Jr., mown to be the person deacn'bad In and
who alC8QJiod the foregoing Instrument. and who acknowledged to me lhat he executed lhe same. My commission OIIJiiles: Not.1ry Public: SEAL Stole of Colori!fo ) )§ C<Qlly of ) The fote(JOing
Instrument was acknowtedged before me thle _ _ day of __ • 2011 by RovE. Sa~~age, known to be the pensan described in and who 8lii!QJted the foregoing lnsttunent, and who ecknowledged
to me lhat he exewted the same. My oommlasiorl Clqlires· Notary Public: SEAL • 2011 by SEAL
1111 flY'• '""~JI1~1II k'I~N~fi¥(1-NriW-1. ~nl II III Reception" : 809276 · 10113/2011 10:32 :41 ~M Jean ~lbe rlco 10 of 11 Reo Fee :$61 .00 Ooo Fee :0 .00 GARFIELD COUNTY CO Stale or
Q.QJ.Qrado__ ___ ____ > )§ County of Garfield ) The·! foregoing inslmment was acknowledged before me this _1_·. _ day of _L~ :; ~--', · ' . 2011 by Daniel W. Savage, known to be the
person described in and who executed the foregoing instrument, mu.l wllu acknowledged to me that he executed the same. STATE OF COLORADO ) ss. CITY AND COUNTY OF DENVER ) '•) t• : -SUI1SCHIBED
AND SWORN to before me this _ __::.~ day of _L_('_[I._._/_)1. . ~--· 2011, by Ricardo 0 Ganegos. as Attorney-in-Fact of Encana Oil & Gas (USA) Inc. Witness my hand and official seal.
_LL)~ L·~-( ~/-f(/~..1}_ I Notary Pvt; i)lic I Page 7of8 )
) ) 1111 rift~. l~.-JI1W:•I'IIY r.t'I'N l.«ff1r~~~ll'1' IM·~ IIIII Reeeplion" : 809276 . 10/13/20 11 10: 32: 41 AM Jnn Albenco 11 of 11 Rae Fee : $61 .00 Doc Fee : 0 .09 GARFIELD COUNTY
CO HXJIJHIT "A" This Exhibit "A'' is attached to and made u part of that certain Term Access Agreement by and between Encana Oil & Gas (USA), Inc. (Enco.na) and Joan L. Savage, John
W. Savage, Jr., Roy E. Savage, MarshaH T. Savage and Daniel W. Savage collectively known as (Savage) . Township 7 South. Range 9S West of the 61h P.M.Section 21: NW/4 Garfield County,
CO N.W. CORN(R SCCIIOH 21 IPU IIU.I AWIJ CAP r~ -" m I: ~~ oi ~ 'J 01 ~ Ill 0 ~ 'tll/4 CORNCR S£CnOH 21 IHJ OUol ... un ••. c ... P PU8lJC LANO SURW:Y caiHfR • AHQ.( PCIHr P.Qfl. POINT
01' f/CCHtHC • .o.L POIH I CF lllllllll1 N89'-fJ'JO"£, 268 .... 57 ' S~icn 21 HOIUH I 4 CORH[H SECnON 21 198J OUI ... LUNIHtJM CAP £ Proposed Easen1ent I C€RTIFICA TE OF' SURVEYOR 1,
Tftl T"ffffi'JJ ol Ft .. COlorado IMMby c:ertiiY lhat lhls map w.u made hm nofvs o..r..,, . ..... .. ,s otualsc.wwy "*" fly m. my dfnlaion lot E~ Oil a G• (USA) h:. Mel hi !he 18Sult
d wtrlch IW8 c:on.clly sllown lleteon. Page 8ofJI • I ~· ~I "'• t' i! I
Cj~t>-76iJ --·~--~·d~·-·---------Tws fh:~D, ltla4a tlolo lOth UyU Jww:: u97 , botwMl> FinatlCial I.a.nd !n~t COip:Jratioo 6363 Kectyhill CUrrt a urpor-allrm 411lf~v:;;:..'J.~ ~M~~ \y
ri.Wa of tll1law1 of th• Stt.to of Oela,wan! 'ml ProWction Ccnpany, In;., Zl Del<Mlre Col'JX)ratioo 555 17th St., SUite lSSO, Denver, 00 80202 «W"X'O"X>X''X.lC)OQl QOil•tJ ;woooooooooooouc:xx~
ot the IOWH partt WITN'HSSin'Il. I'lll,t U.o W4 part, .t tilt flut~l'f. tor Mel 1:1 caul<loor.tlw o1 U.• 1u0'1 otone hundred dolLJ:rs, and Qt:Mr I'!CXld and valnanle eonsiUerat.ioo {Stoo.oo
o.v.c-,L ~ ~ lil•lll<il>lrlrof tMllntpftln hano!t~aY\1 tli:Oioi;,t p~>Hy •I tloo u.-o..<l po.rl, lh ,..c.tpl .. ,....,/II hoNb,o" eoahon<l "'ld Kbcrorl•d~t~d, btb IJ'ILIIteci, buplrl<d,
.old' ~coanrtd., •~d ~ th.!u l)l'Mtfll:l doth U*llt. buwa.lao .. 1.1. «'111"17 mel untlr~~~ Llllk th1uld p•Tt V ol \11•14C<U14 part. /ts "hob-., IDd ... ~,p., fanYV, .u nl t"" f,I,_U..
4owlb>W 1~1 ·~ ,Mol. dlo ... d, J~loQioo, Jill• ud bolbl' II> 'tbo County o-t Garfield Uld SU.t1af Colorao:to, towltl od& 110m fully descri.bt!d on Exhibit "A" attol!.cht." .> d ~lfl.reto
tmd ~~Ede .'! gart hereof • 1~~
EXHIBI'fHA" \~~~ to thattemun Dc;c;d, tlat.ed Jul)~ 30, 1997, from FmancM LA.M Investment CorporaHon,as part)' oflhe fiBt part, ami TBl Ptod· 11etion Company, Inc.., a.s. party of the
secorul part. Ipwn,Wjp 7 S.Ollth. RAA11e 96 We>! 6" P.M. S~1ion 2.5: SB4SW1 Section 36: E2NW4, NE4SW4, S2NE4, N2SE4 OJTfidd County, Colorado containing: 320 net surf au acres, more or
less, and 2q0 ncl mincnl\ ~~reJ. more v:r less. incluiling, hut not limited to, all oil. R,U, and other hydrocarbon sub3UIIlte.5. rniuen!s, surf11te fee estates, mineral fee esla!CS,
reversion and rcvc.rsions. ~maindcr and remainders, renu, issues lWd pl'ofits thereof, oil, .gu and mincnlluses, r:ight and interests attribuLib!c or at loet~ble to the oll, g~ 11.nd
m:inerlll ICM~ by .... irtu11 of pooling, unitization, and commwUtiunion agrumems, surface leases. e.uerncms and rights-of-wey inolud~<d within ur ndja<;".l:"nt tn th~ illlere.,L'\.
lieeoses. l)ecmits, water rights, W11ter wells and water 5\0C!r.. including, wilhOUI limit~.tion. lhe1 t.ertain O)nd easement res-erved under that certain Deed, dated February 23. 1962,
be~ween Claude V. Hay\Wld and Nellie G. HaywaJd, as parlics oflhe first part, and Wlllio.m 0. Oa'c~ a11d Jw:nes W. Dearing, as panics of the s~otld part. teeorded in Book 339,1!.1 P;~.ge
417 as documenl 216691 vfiiK Garfield County Clerk and R~eordt'f'J Office. Subjed tr.~ U.S. Pateol 1escrvatioos; easements iUld rights-of-wa~ of record or in place or in ll!it; and building
and :roning regula! ioM. IIIIIIIIIIIIUIIIliiiU llllllllii~WII ill 111111101111 ~Uil$7 01/11/11&') IM1W 11~ PTR 432 2 of a It U.IH I) :U.H II 6.&3 CARFIELD CLERK 280
Stott ofDtiRw,.,. Offtce of the Secretary of State PAQ& l l, IDtiUD .J. tMilo, tiCM!UT OP lflB or ~D 8-fA'tl or DILAWUJ, DO hU.I'r c.Dfln '1'D CJ.Kl'lriCAH or OP'~I.JUJII:P~ mtiCI MZMU:
"!Bl PIIOilUCUal CQCUII!'', A DliLUUll COIU'OIIUIOif, WITB 1U1D 111'1'0 •!QI -· tHC." Ulii)IR 711 IQoa: or '"""' 81101110, INC. ' , A <:OIIPOI!.\!1011 ORGAIIUJD »>D BX!IftWQ lllfl)lll
71111 Ol'Tlc& !D Tlml'n-POOMJ DA'I or IIOW>InR, A.D. UU, .U t 0' Cl;CIIO. A.M. AND l PO l!lllll'f romJIP.. CD!fiTJ Till! ftl Al'ORZUIO DZLllllRI • .lNIO I DO IUUI' ~ c&Rl'ITT ftU 'I'D
U?IC'll'IS llAD Or TilE Al'OUB&lb eu7UIO!I 01 -nP U 'nl 'nlllt.l"''•rooJml OAf or MOVIMIIk, &.D. ltll. 21u1u auo 91UIU't1 Atmi!NrtCA110N: 1.!15134 DA'Il< 01•12•91 : _-!
) ) PK21 to PI20 ACCESS ROAD Integrated Vegetation and Noxious Weed Management Plan Garfield County, Colorado Cover photo: View along the proposed road alignment. Prepared for: EnCana
Oil & Gas (USA) Inc. Prepared by: WestWater Engineering 2516 Foresight Circle #1 Grand Junction, CO 81505 August 2011
1.0 INTRODUCTION 1.1 Project Description At the request ofEnCana Oil & Gas (USA) Inc., WestWater Engineering (WWE) has prepared an Integrated Vegetation and Noxious Weed Management Plan
(IVNWMP) for the proposed PK21 to Pl20 access road project. The proposed road is located in Sections 20 and 21, Township 7 South, Range 95 West, 6'h Principal Meridian. This alignment
is located south of Parachute, Colorado near Stone Quarry Gulch (Figure I). Access to the project area is available via Gardiner Lane from Stone Quarry Road in Battlement Mesa, Colorado.
The current primary uses of the area surrounding the proposed alignment are rangeland, wildlife habitat, rural residential sites, and natural resource extraction, including natural gas
development. 1.2 General Survey Information Field inspections of the project area were conducted by WWE biologists on August 23, 2011. WWE biologists surveyed the area to identify vegetation
communities and to search for, identify, and map noxious weed species. Mapped soil types, as published by the Natural Resources Conservation Service (NRCS), U.S. Department of Agriculture
(USDA), were reviewed to determine the soil types and vegetation characteristics at the project site (NRCS 20 II). Vegetation types in the project area were determined through field
identification of plants, aerial photography, and on-the-ground assessment of plant abundance visible during the survey. Identification of plant species was aided by using pertinent
published field guides (Whitson et al. 200 I, CWMA 2007, Kershaw et al. 1998, Weber and Wittmann 200 I). Photographs were taken of the general project location, vegetation, terrain,
and specific weed findings. Locations of weeds and other features included in this report were recorded with the aid of a handheld global positioning system (GPS) receiver using NAD83
map datum, with all coordinate locations based on the Universal Transverse Mercator (UTM) coordinate system in Zone 12. 2.0 LANDSCAPE SETTING 2.1 Vegetation and Climate Vegetation in
the area consists of mixed grasslands with dominant species including big sagebrush (Artemisia tridentata), broom snakeweed (Gutierrezia sarothrae), yellow rabbitbrush (Chrysothamnus
viscidiflorus), western wheatgrass (Pascopyrum smithii), smooth brome (Bromus inermis), Indian ricegrass (Achnatherum hymenoides), and crested wheatgrass (Agropyron cristatum). Natural
vegetation communities in the project area have been affected by fire, livestock grazing, agriculture, and natural gas developments. The climate for the Colorado River Valley in the
project area is considered semi-arid with a wide range of annual temperatures and precipitation. The average annual precipitation in the region ranges between 12 and 15 inches, and temperatures
range from about 95 degrees Fahrenheit in the summer months to -10 degrees Fahrenheit during the winter months (WRCC 2011). 2.2 Soils The project area is composed of two soil types (NRCS
20 II) which are outlined in Table I. WestWater Engineering Page I of 10 August 2011
Table 1. Soil types in project area. lldefonso Pottslldelfonso Complex Stony Loam Loam, Clay Loam, Stony to Very Stony Loam 6to45 12 to 25 antelope bitterbrush, big sagebrush, Indian
ricegrass, prairie junegrass, serviceberry, western wheatgrass antelope bitterbrush, big sagebrush, bluebunch wheatgrass, bottlebrush squirreltail, Indian ricegrass, needle-and-thread
grass, prairie june grass, rabbitbrush, serviceberry, western wheatgrass 73.2 26.8 These soils formed in non-saline alluvium and are derived from basalt, sandstone, and shale. Areas
with these soils are primarily used for grazing and wildlife habitat. 2.3 Terrain The project area lies south of the Colorado River near the town of Parachute, Colorado. Terrain at the
site is mildly sloping north toward the Colorado River and is dissected by steep-sided, but shallow drainages. Elevation along the alignment ranges from approximately 5,850 to 5,950
feet above sea level. 3.0 NOXIOUS WEEDS 3.1 Introduction to Noxious Weeds Noxious weeds are plants that are aggressive competitors with native plants when non-native to an area. Most
have come from Europe or Asia, either accidentally or as ornamentals that have escaped. Once established in a new environment, they tend to spread quickly because the insects, diseases,
and animals that normally control them are absent. Noxious weeds are spread by man, animals, water, and wind. Prime locations for the establishment of noxious weeds include roadsides,
construction sites, areas that are overused by animals or humans, wetlands, and riparian corridors. Subsequent to soil disturbances, vegetation communities can be susceptible to infestations
of invasive or exotic weed species. Vegetation removal and soil disturbance during construction can create optimal conditions for the establishment of invasive, non-native species. Construction
equipment traveling from weed-infested areas into weed-free areas could disperse noxious or invasive weed seeds and propagates, resulting in the establishment of these weeds in previously
weed-free areas. The Colorado Noxious Weed Act (State of Colorado 20 I 0) requires local governing bodies to develop noxious weed management plans. Both the State of Colorado and Garfield
County maintain a list of plants that are considered to be noxious weeds. The State of Colorado noxious weed list includes three categories. List A species must be eradicated whenever
detected. List B species include weeds whose spread should be halted. List C species are widespread, but the State will assist local jurisdictions which choose to manage those weeds.
WestWater Engineering Page 2 of 10 August 2011
The Garfield County Weed Advisory Board has compiled a list of2l plants from the State list considered to be noxious weeds within the county (see Appendix A). The Garfield County Weed
Advisory Board has duties to: l. Develop a noxious weed list, 2. Develop a weed management plan for designated noxious weeds, and 3. Recommend to the Board of County Commissioners that
identified landowners submit an integrated weed management plan for their properties. 3.2 Observations The vegetation communities in the immediate vicinity of the project site are generally
not heavily infested with noxious weeds. The weed survey conducted included the width of the proposed alignment plus approximately I 00 feet on either side. Noxious weeds observed included:
• cheatgrass (Bromus tectorum-State C list), • common burdock (Arctium minus-State B list and Garfield County list), • field bindweed (Convolvulus arvensis-State C list), • houndstongue
(Cynoglossum officina/e-State B list and Garfield County list), • musk thistle ( Carduus nuttans-State B list and Garfield County list), and • tamarisk (Tamarix ramosissima-State B list
and Garfield County list). The locations of noxious weeds in the project area are provided in Table 2 and are illustrated in Figure I. Cheatgrass and field bindweed were scattered thinly
throughout the survey area and were not mapped. Several undesirable plant species were found in the project area that are not listed by the State of Colorado or Garfield County, but
may be considered nuisance weeds. Plants in this category observed in the project area include kochia (Bassia spp.), Russian thistle (tumbleweed) (Sa/sola sp.), prickly lettuce (Lactuca
serriola), and tumble mustard (Sisymbrium spp). These plants can negate revegetation efforts and cause losses due to decreased seeding success and associated costs. The presence of these
plants creates increased competition for resources and can negatively affect more desirable plant species. Table 2. Noxions weed locations ID Easting Northing Weed Species ID Easting
Northing Weed Species I 757384 4368071 Common Burdock 13 757203 4367905 Musk Thistle 2 757397 4368081 Common Burdock 14 757414 4368038 Musk Thistle 3 757392 4368056 Common Burdock 15
757410 4368044 Musk Thistle 4 757412 4368047 Common Burdock 16 757401 4368066 Musk Thistle 5 757402 4368064 Common Burdock 17 757258 4367888 Musk Thistle 6 757497 4368161 Musk Thistle
18 757359 4368097 Houndstongue 7 757413 4368180 Musk Thistle 19 757386 4368079 Houndstongue 8 757346 4368101 Musk Thistle 20 757397 4368071 Houndstongue 9 757395 4368068 Musk Thistle
21 757409 4368032 Houndstongue 10 757402 4368070 Musk Thistle 22 757372 4368085 Tamarisk II 757397 4368062 Musk Thistle 23 757397 4368065 Tamarisk 12 757387 4368048 Musk Thistle WestWater
Engineering Page 3 of 10 August 2011
3.3 Integrated Weed Management Control of invasive species is a difficult task and requires intensive on-going control measures. Care must be taken to prevent damage to desirable plant
species during treatments to prevent further infestations by other pioneer invaders. Weed management is best achieved through a variety of methods over a long period oftime including
inventory (surveys), direct treatments, prevention through best management practices, monitoring of treatment efficacy, and subsequent detection efforts. Weed management is often reserved
to "control" of existing species and prevention of further infestations (existing and new species) rather than eradication. After successful and effective management, decreases in infestation
size and density can be expected, and after several years of successful management practices, eradication is sometimes possible. 3.4 Prevention and Assessment of Noxious Weed Infestations
Weed management is costly and heavy infestations may exceed the economic threshold for practical treatment. Prevention is especially valuable in the case of noxious weed management.
Several simple practices should be employed to prevent most weed infestations. The following practices should be adopted for any activity to reduce the costs of noxious weed control
through prevention. The practices include: • Prior to delivery to the site, equipment should be thoroughly cleaned of soils remaining from previous construction sites which may be contaminated
with noxious weeds. • If working in sites with weed-seed contaminated soil, equipment should be cleaned of potentially seed-bearing soils and vegetative debris at the infested area prior
to moving to uncontaminated terrain. • All maintenance vehicles should be regularly cleaned of soil. • A void driving vehicles through areas where weed infestations exist. Assessment
of the existence and extent of noxious weeds for an area is essential for the development of an integrated weed management plan. This report provides an initial assessment of the occurrence
of noxious weeds for the project area. In order to continue effective management of noxious weeds, further inventory and analysis is necessary to I) determine the effectiveness of the
past treatment strategies; 2) modifY the treatment plan if necessary; and 3) detect new infestations early, which would result in more economical treatments. 3.5 Treatment and Control
of Noxious Weed Infestations No species specific treatment or control measures are presented because no listed noxious weeds were located in the project area. If noxious weeds are detected
in this area in the future, WestWater Engineering or the Garfield County Weed Manager can provide specific guidance for treatment and control strategies. 3.6 Recommended General Treatment
Strategies If an infestation occurs and control is necessary, it is important to know whether the target is an annual, biennial, or perennial to select strategies that effectively control
and eliminate the target. Treatment strategies vary depending on plant type, which are summarized in Tables 2 and 3. Herbicides should not always be the first treatment of choice when
other methods can be effectively employed. WestWater Engineering Page 4 of 10 August 2011
Table 2. Treatment Strategies for Annual and Biennial Noxious Weeds Target: Prevent Seed Production I. Hand grub (pull), hoe, till, cultivate in rosette stage and before flowering or
seed maturity. If seeds develop, cut and bag seed heads. 2. Cut roots with a spade just below soil level. 3. Treat with herbicide in rosette or bolting stage, before flowering. 4. Mow
biennials after bolting stage, before seed set. Mowing annuals will not prevent flowering, but can reduce total seed production. (Sirota 2004) Table 3. Treatment Strategies for Perennials
Target: Deplete nutrient reserves in root system, prevent seed production I. Allow plants to expend as much energy from root system as possible, do not treat when first emerging in spring,
but allow growth to bud/bloom stage. If seeds develop, cut and bag if possible. 2. Herbicide treatment at bud to bloom stage or in the fall (recommended after August 15 when natural
precipitation is present). In the fall, plants draw nutrients into the roots for winter storage. Herbicides will be drawn down to the roots more efficiently at this time due to translocation
of nutrients to roots rather than leaves. If the weed patch has been present for a long period of time, another season of seed production is not as important as getting the herbicide
into the root system. Spraying in fall (after middle August) will kill the following year's shoots, which are being formed on the roots at this time. 3. Mowing usually is not recommended
because the plants will flower anyway; seed production should be reduced. Many studies have shown that mowing perennials and spraying the re-growth is not as effective as spraying without
mowing. Effect of mowing is species dependent; therefore, it is imperative to know the species and its basic biology. Timing of application must be done when biologically appropriate,
which is not necessarily convenient. 4. Tillage may or may not be effective. Most perennial roots can sprout from pieces only Y, in. -I in. long. Clean machinery thoroughly before leaving
the weed patch. 5. Hand pulling is generally not recommended for perennial species unless you know the plants are seedlings and not established plants. Hand pulling can be effective
on small patches but is very labor intensive because it must be done repeatedly. (Sirota 2004) Some weeds, particularly annuals and biennials, can develop resistance to herbicides. The
ability to quickly develop immunity to herbicides, especially when they are used incorrectly, makes it imperative to use the proper chemicals at the correct time in the specified concentration
according to the product label. Most misuse is centered on excessive application, either in frequency or concentration. This results in mostly top kill and resistant phenotypes. 3.7
Best Management Practices-Noxious Weeds Construction: The following practices should be adopted for any construction project to reduce the costs of noxious weed control and aid in prevention
efforts. The practices include: • Top soil, where present, should be segregated from deeper soils and replaced as top soil on the final grade, a process known as live topsoil handling;
WestWater Engineering Page 5 of 10 August 2011
• Cut-off collars should be placed on all wetland and stream crossings to prevent back washing or draining of important aquatic resources; • In all cases, temporary disturbance should
be kept to an absolute minimum; • Equipment and materials handling should be done on established sites to reduce area and extent of soil compaction; • Disturbances should be reseeded
with the recommended mix in the re-vegetation section; • Topsoil stockpiles should be seeded with non-invasive sterile hybrid grasses, if stored longer than one growing season; • Prior
to delivery to the site, equipment should be cleaned of soils remaining from previous construction sites which may be contaminated with noxious weeds; and • If working in sites with
weed-seed contaminated soil, equipment should be cleaned of potentially seed-bearing soils and vegetative debris prior to moving to uncontaminated terrain. In areas with slope greater
than three percent, imprinting of the seed bed is recommended. Imprinting can be in the form of dozer tracks or furrows perpendicular to the direction of slope. When utilizing hydro-seeding
followed by mulching, imprinting should be done prior to seeding unless the mulch is to be crimped into the soil surface. If broadcast seeding and harrowing, imprinting should be done
as part of the harrowing. Furrowing can be done by several methods, the most simple of which is to drill seed perpendicular to the direction of slope in a prepared bed. Other simple
imprinting methods include deep hand raking and harrowing, always perpendicular to the direction of slope. Herbicides: Annual and biennial weeds are best controlled at the pre-bud stage
after germination or in the spring of the second year. The species identified in the survey are susceptible to commercially available herbicides. Selective herbicides are recommended
to minimize damage to desirable grass species. Professionals or landowners using herbicides must use the concentration specified on the label of the container in hand. Herbicides generally
do not work better at higher concentrations. Herbicide failures related to high concentrations result in incomplete control caused by killing top growth before the active ingredient
can be transported to the roots through the nutrient translocation process. Most herbicide applications should use a surfactant, if directed on the herbicide label, or other adjuvant
as called for on the herbicide label. Grazing: In the event grazing is allowed in the project area, it should be deferred in reclaimed areas until the desired plant species that have
been seeded are established. Alternative Methods: Compacted soils respond well to fossilized humic substances and byproducts called humates. These humates, including humic and fulvic
acids and humin were formed from pre-historic plant and animal deposits and work especially well on compacted soils when applied as directed. An alternative method, particularly where
there is poor or destroyed topsoil, is the application of vesicular-arbuscular mycorrhizal fungi, typically referred to as AMF. These fungi, mostly of the genus Glomus, are symbiotic
with about 80 percent of all vegetation. Endo-mycorrhizal fungi are associated mostly with grasses and forbs and could be helpful in reclamation. In symbiosis, the fungi increase water
and nutrient transfer capacity of the host root system by as much as WestWater Engineering Page 6 of 10 August 2011
several orders of magnitude (Barrow and McCaslin 1995). Colorado State Forest Salida District (Tischler 2006) and Colorado Department of Transportation revegetation and reseeding projects
have incorporated the use of AMF and/or BioSol (a certified by-product of the penicillin manufacturing process composed primarily of mycelium) with good results. Over-the-counter commercial
products, which are better adapted to coating seeds when reseeding and treating roots of live seedling trees and shrubs at time of planting, come in powder form and are available from
many different sources. Some also come in granular form to be spread with seed from a broadcast spreader. The best AMF products should contain more than one fungi species. 3.8 Commercial
Applicator Recommendations A certified commercial applicator is a good choice for herbicide control efforts. Restricted herbicides require a Colorado licensed applicator. An applicator
has the full range of knowledge, skills, equipment, and experience desired when dealing with tough noxious weeds. Reclamation farming services using multiple seed bin range drills and
specialized related equipment is available and should be used for reclamation seeding projects. Monitoring: Areas where noxious weed infestations are identified and treated should be
inspected over time to ensure that control methods are working to reduce and suppress the identified infestation. The sites should be monitored until the infestations are eliminated
or reduced to acceptable levels. These inspections can then be used to prioritize future weed control efforts. 4.0 REVEGETATION -RECLAMATION Site specific reclamation plans should be
developed with a qualified reclamation contractor. Successful reclamation of the project area is dependent upon soil type and texture, slope gradient and aspect, proper weed control,
available water, and revegetation with suitable plant species. Appendix B provides the recommended seed mix for Pinyon-Juniper Woodland and/or Mountain/Wyoming Big Sagebrush Shrubland
(BLM 2007). 5.0 POTENTIAL ARMY CORPS OF ENGINEERS JURISDICTIONAL WETLANDS AND WATERS OF THE U.S. WWE biologists determined that potential Army Corps of Engineers (ACOE) jurisdictional
drainages showing characteristics of Waters of the U.S. (WOUS) would intersect with project features in six locations (Table 3; Figure 2). T a bl e 3 • P o t en f taI It y .'J Urt' s
dt' c f tona I WOUSm' th e pro.J' ec t area. ID Eastin2 Northin2 Description COE-1 757297 4367929 COB-Irrigation ditch. Dry 3.5' x 10" COE-2 757306 4367928 COE-USGS blue line I' x 3"
COE-3 757335 4367986 COE-USGS blue line 1.5' x I" COE-4 757403 4368062 COB-Irrigation ditch. Flowing 6" x I" Carex sp. present. Adjacent to Stone Quarry Gulch. COE-5 757408 4368032 COE-USGS
blue line--Stone Quarry Gulch proper-!' x 2" COE-6 757412 4368167 COE-USGS blue line. No OHWM. *OHWM=Ordmary Htgh Water Mark WestWater Engineering Page 7 of 10 August 2011
6.0 REFERENCES Barrow, J. R., and Bobby D. McCaslin. 1995. Role of microbes in resource management in arid ecosystems. In: Barrow, J. R., E. D. McArthur, R. E. Sosebee, and Tausch, R.
J., comps. 1996. Proceedings: shrub land ecosystem dynamics in a changing environment. General Technical Report, lNT-GTR-338, Ogden, Utah: U.S. Department of Agriculture, U.S. Forest
Service, Intermountain Resource Station, 275 pp. BLM. 2007. Menu-based seed mixes by habitat type for use in interim and final reclamation. Bureau of Land Management. Glenwood Springs
Energy Office. Glenwood Springs. CWMA. 2007. S. Anthony, T. D'Amato, A. Doran, S. Elzinga, J. Powell, I. Schonle, K. Uhing. Noxious Weeds of Colorado, Ninth Edition. Colorado Weed Management
Association, Centennial. Kershaw, L., A. MacKinnon, and J. Pojar. 1998. Plants of the Rocky Mountains. Lone Pine Publishing, Auburn, Washington. NRCS. 2011. Web Soil Survey, U.S. Department
of Agriculture, Natural Resource Conservation Service, URL: http://websoilsurvey.nrcs.usda.gov Sirota, J. 2004. Best management practices for noxious weeds of Mesa County. Colorado State
University Cooperative Extension Tri River Area, Grand Junction, Colorado. URL: http://www .coopext.colostate.edu/TRA/W eeds/weedmgmt.html ) State of Colorado. 2010. Rules pertaining
to the administration and enforcement of the Colorado Noxious Weed Act, 8 CCR 1206-2. Department of Agriculture, Conservation Services Divison, Denver, 72 pp. Tischler, Crystal. 2006.
District Forester, Colorado State Forest Service, Salida. Personal communication with Bill Clark, WestWater Engineering, Grand Junction. Weber, William A., and Ronald C. Wittmann. 2001.
Colorado Flora, Western Slope. Third Edition, University Press of Colorado, Boulder. Whitson, T. D. (editor), L. C. Burrill, S. A. Dewey, D. W. Cudney, B. E. Nelson, R. D. Lee, and R.
Parker. 2001. Weeds of the West-rJh edition. Western Society of Weed Science in cooperation with Cooperative Extension Services, University of Wyoming, Laramie. WRCC. 2011. Western Regional
Climate Center Western U.S. Climate Historical Summaries. Website--http://www.wrcc.dri.edu/climsum.html. WestWater Engineering Page 8 of 10 August 2011
Legend 0 Common Burdock e Houndstongue e Musk Thistle e Tamarisk -PK21 to Pl20 Figure 1 Encana Oil & Gas (USA) Inc, PK21 to Pl20 Access Road Integrated Vegetation and Noxious Weed Management
Plan ft'NestWater Engineering ":;aa Consulting Englnurs It Sd •ntists ~ .. )
-$-COEs -PK21 to Pl20 Figure 2 Encana Oil & Gas (USA) Inc, PK21 to Pl20 Access Road Potential ACOE Jurisdictional Drainage Crossings ft~estWater Engineering ":;;/Consulting E._n.g ineors
t. S<ientists ., -August 2011
APPENDIX A Garfield County Noxious Weed List ~~'\'Sil I -Growth form: T"' tree/shrub; F = forb/vine; G = graminoid 2-Life history: A =annual; B =biennial; P = perennial; WA = winter
annual WestWater Engineering Appendix A July 2011
lanceolatus, Agropyron Poa sandbergii, Poa secunda Elymus elymoides, Sitanion hystrix AppendixB Critana, Schwendimar San Luis Arriba Cool Cool Cool Cool Cool *Based on 60 pure live seeds
(PLS) per square foot, drill-seeded. Double this rate (120 PLS per square foot) if broadcast or ltydroseeded. WestWater Engineering Appendix B Bunch Bunch 1.9 3.4 3.3 3.0 0.6 2.7 July
2011
STATE OF COLORADO Bill A iller, Jr., Governor James B. Martin, Executive Director Dedicated to protecting and improving the health and environment of the people of Colorado 4300 Cherry
Creek Or. S. laboratory SeiVices Division Denver, Colorado 80246-1530 8100 Lowry Blvd. Phone (303) 692-2000 Denver, Colorado 80230-6928 TDD Line (303) 691-noo (303) 692-3090 Located
in Glendale, Colorado http://www.cdphe.state.co.us June 20, 2007 Teny C. Gosney, Envir. Coord. EnCana Oil & Gas (USA) Inc., 2717 County Road 215 Ste. 100 Parachute, CO 81635 970/285-2687
RE: Final Permit, Colorado Discharge Permit System-Stormwater Certification No: COR-038210 Local Contact: Dear Sir or Madam: South Parachute Area Garfield County Teny Gosney, Envir.
Coordinator 970/309-8155 Enclosed please find a copy of the new permit and certification which have been re-issued to you under the Colorado Water Quality Control Act. Your old permit
expires on June 30, 2007. This is a renewal to the permit, and replaces the old one. See page 2 of the Rationale (the pages in italics) for a summary of the changes to the permit. Your
Certification under the permit requires that specific actions be performed at designated times. You are legally obligated to comply with all terms and conditions of the permit Please
read the permit and certification. If you have any questions please visit our website at : www.cdphe.state.co.us/wq/permitsunit/stormwater or contact Matt Czahor at (303) 692-3517. Sincerely,
O)kg {)d---Kathryn Dolan Stormwater Program Coordinator Permits Unit WATER QUALITY CONTROL DIVISION xc: Regional Council of Governments Local County Health Department District Engineer,
Technical Services, WQCD Permit File ·
STATE OF COLORADO COLORADO DEPARTMENT OF PUBLIC HEALTH AND ENVIRONMENT WATER QUALITY CONTROL DIVISION TELEPHONE: (303) 692-3500 CERTIFICATION TO DISCHARGE UNDER CDPS GENERAL PERMIT COR-030000
STORMWATER DISCHARGES ASSOCIATED WITH CONSTRUCTION Certification Nwnber COR038210 This Certification to Discharge specifically authorizes: EnCana Oil & Gas (USA) Inc. LEGAL CONTACT:
Terry C. Gosney, Envir. Coord. EnCana Oil & Gas (USA) Inc. 2717 County Road 215 Ste. 100 Parachute, CO 81635 Phone # 9701285-2687 terry.gosney@encana.com LOCAL CONTACT: Teny Gosney,
Envir. Coordinator, Phone # 970/309-8155 terry.gosney@encana.com Owing the Construction Activity: Gas/Oil Field Exploration and/or Development to discharge stormwater from the facility
identified as South Parachute Area which is located at: •tt See map in file. Garfield County, Co Latitude 39/25/39, Longitude 108/01/01 In Garfield County to: Dry Creek --Colorado River
Anticipated Activity begins 03/01/2005 continuing through 12/31/2008 On 10,880 acres (400 acres disturbed) Certification is effective: 07/01/2007 Certification Expires: 06/30/2012 Annual
Fee: $245.00 (DO NOT PAY NOW-A prorated bill will be sent shortly.) Page I of22
Final Drainage Report PK21-PI20 Road August 31, 2011 Prepared for: Encana Oil & Gas (USA) Inc. 2717 County Road 215 Suite 100 Parachute, CO 81635 Prepared by: ~R1Ys~~T'?!Tr 744 Horizon
Court, Suite 110 Grand Junction, CO 81506 Phone: (970) 241-4722 Fax: (970) 241-8841 Job No. 1086-031
TABLE OF CONTENTS ........................................................................... I I. Introduction .......................................................................................
........................... 1 A. Background .............................................................................................................. 1 B. Project Location ......................
................................................................................. 1 C. Project Description ............................................................................................
...... 1 D. Previous Investigations .......................................................................................... 2 II. Drainage System Description ......................................
............................................ 2 A. Existing Drainage Conditions ............................................................................... 2 B. Offsite Tributary
Area ............................................................................................. 2 C. Proposed Drainage System Description ..........................................................
.... 3 D. Drainage Facility Maintenance ............................................................................. 3 III. DRAINAGE ANALYSIS AND DESIGN CRITERIA ....................................
... 4 A. Regulations ............................................................................................................. 4 B. Hydrologic and Hydraulic Criteria .............................
........................................ 4 C. Calculation Methodology ..................................................................................... 4 D. Input and Results ....................
............................................................................... 4 IV. CONCLUSIONS .....................................................................................................
.. 5 FIGURES General Location Map ..................................................................... 1 P33 Off-Load Plan ...........................................................................
2 Drainage Basin Map ........................................................................ 3 APPENDIX Hydrology and Hydraulic Calculations (model output) ...............................
A NRCS Web Soil Survey .................................................................................. B S:\PROJECTS\1086 EnCana\031 PK21_Pl20 Road\ Design\ Drainage\ Drainage Report.doc
FDR-I
I. Introduction A. Background The purpose of this Drainage Report is to identify pre and post development drainage conditions for the PK21-PI20 Road Project. This report identifies the
following items with respect to the site: existing drainage, potential drainage issues resulting from this project, solutions to the potential drainage issues, and post construction
BMPs. River City Consultants, Inc. prepared this Final Drainage Report for Encana Oil and Gas (USA) Inc. of Parachute Colorado. B. Project Location The project is approximately 3 miles
(as the crow flies) southeast of Parachute Colorado. The project is south of I-70 and the Colorado River and eastnortheast of High Mesa. The Garfield County website indicates the project
is within two parcels: Parcel # 240721200051 , which is owned by the Encana Oil and Gas (USA) Inc. and Parcel # 240720400050, which is owned by the Savage Family. In more legal terms,
it is located in the Southwest% of the Northwest %Section 21 and Southeast% of Section 20, Township 7 South, Range 95 West of the 6th Principal Meridian, Garfield County, Colorado. Primary
access to the site is from private access roads. C. Project Description The primary purpose of the proposed project is to install a new road that will connect two areas separated by
Stone Quarry Gulch. The project will consist of grading, placement of a gravel driving surface, and stormwater conveyance facilities (ditches, culverts, and BMPs). This project consists
of approximately 15,148 cubic yards of cut and 13,326 cubic yards of fill. Proposed finished surfaces are gravel and top-soiled and revegetated. The total estimated area of disturbance
is 3.5 acres. No lots are being proposed as part of this project. The cover conditions at the project site currently consist of undeveloped land. Vegetation varies within the road alignment
and associated drainage basins and includes areas of sage brush, grasses, juniper, pinion pine, oak brush. The existing grades on the project site and associated basins vary from 10
percent to2H:1V. S:\PROJECTS\ 1086 EnCana\031 PK21_PI20 Road\Design\Drainage\Drainage Report.doc FDR-1
According to the NRCS web site, the upper layer of soil present at the project site consists of Ildefonso stony loam and Potts loam. These soils both have hydrologic soil classifications
of B, well draining. The soils were modeled as C type soils due to the presence of exposed bedrock, which indicates shallow bedrock. The whole soil erosion K factor for these soils varies
between 0.15 and 0.28, meaning these soils are moderately erosive. D. Previous Investigations No known previously completed drainage reports effect the projected area. Accordingly none
were reviewed s part of this project. II. Drainage System Description A. Existing Drainage Conditions The site drains to Stone Quarry Gulch, which in 0.9 miles drains to Monument Gulch.
Monument Gulch in turn ultimately drains to the Colorado River (1.7 miles downstream of its junction with Stone Quarry Gulch). The Colorado River is approximately 2.6 miles downstream
of the site. Existing cover conditions with the major basin are primarily undeveloped. The development within the basin mostly consists of dirt/gravel roads and pad areas associated
with natural gas development. The predominant drainage pattern is characterized by overland flow sloping to the northwest. Grades in developed areas range from relatively flat on the
pads to 1.5H1 V on cutjfill slopes. Natural slopes range from near vertical to 10%. Man-made and natural channels and other natural features collect and concentrate surface runoff. Occasionally
roads cross the slope also concentrating and diverting runoff. The project area currently contains no improvements. Vegetation on the the site would be classified as fair condition in
the lower portions of the basin and good in the upper portions. The model used poor and fair cover conditions so predicted flows were on the conservative end of the potential spectrum
of values. S:\PROJECfS\1086 EnCana\031 PK21_Pl20 Road\ Design\Drainage\Drainage Report.doc FDR-2
B. Offsite Tributary Area As previously noted, this site receives off-site flows from the southeast. Cover conditions adjacent to the site vary between range lands with sage and grasses,
to juniper and pine, to oak brush. Grades adjacent to the site average approximately 15 percent. The site generally slopes to the north-northwest. Soils within the offsite tributary
area as also hydraulic soil group B according totheNRCS. C. Proposed Drainage System Description The proposed final drainage system will consist primarily of roadside ditches and culverts.
These features will convey the flows to and along existing drainages. Existing and proposed runoff coefficients for the overall drainage basin do not significantly vary because of the
overall small percentage of area where the runoff coefficients will increase. Thus the quantity of runoff from the site will not vary significantly from existing conditions to proposed
conditions. The water quality from the site under proposed final conditions will be controlled by revegetation, check dams in the ditches, sediment traps, rip-rap, and vegetative buffer
zones. Off-site flows will be routed under the road via the proposed culverts .. The proposed road alignment crosses two irrigation ditches. The irrigation flows will be conveyed under
the proposed road via culverts. These culverts were sized by determining the maximum capacity of the existing irrigation ditches (cross section and slope). This value was then used to
size a culvert that could convey this flow without being 100% full. Access to and through the site shall be by the proposed gravel surface roads as shown on the drawings. D. Drainage
Facility Maintenance The proposed drainage system will not be maintenance free. Maintenance will be performed by Encana. The sediment traps will be cleaned when sediment is within six
inches of the culvert invert or 1 foot deep, whichever is less. Ditch check dams will be cleaned when sediment build up is one half the height of the dam or 12 inches, whichever is less.
Vegetated buffer areas will be protected by signs and/or fencing to keep people and traffic off these areas. Damage to slopes and ditches caused by erosion during storms will be fixed
and stabilized using appropriate means (e.g., erosion fabric, hydroseed & mulch, additional check dams in ditches to further decrease the velocities). 5:\PROJECfS\ 1086 EnCan~\031 PK21_PI20
Road\ Design\ Drainage\ Drainage Report.doc FDR-3
It is advisable to inspect drainage facilities following any major storms or at a frequency no less than once a month and that inspections be documented by the person conduction the
inspection. Any issues or deficiencies noted during the inspection should be corrected immediately. III. DRAINAGE ANALYSIS AND DESIGN CRITERIA A. Regulations The policy, design criteria,
design constraints, methods of analysis, recommendations, and conclusions presented in this report are in conformance with standard engineering practice and Article VII Standards Section
7-207 Stormwater Runoff of Garfield County Unified Land Use Resolution of 2008, as amended 7-19. B. Hydrologic and Hydraulic Criteria No drainage constraints were noted for this project.
The hydrologic design criteria presented in this report are in conformance with standard engineering practice. Other manuals and publications were also reviewed to determine conformity
with accepted design practices and applicability to the project. These include the National Engineering Handbook, the Civil Engineering Reference Manual, and the Certified Professional
in Storm Water Quality (CPSWQ) Study Guide. C. Calculation Methodology Hydrology and hydraulic calculations were performed using Autodesk Storm and Sanitary Analysis 2011 (formerly BOSS
International's StormNET) and Autodesk Hydraflow Express. The following model engines/methods/equations were used: USEP A SWWM (hydrology), SCS Curve Number (infiltration method), hydrodynamic
(hydraulic routing/link), and Hazen-Williams (hydraulic link). D. Input and Results The model input and results are as follows: • A composite SCS Curve Number was derived based on cover
conditions within each basin (see attached model printout for specifics) • The model consists of 7 basins and 7links (7 culverts). • The 100 year 24 hour storm was used to size all drainage
features (SCS Type II with a total rainfall value of 2.6 inches from NOAA Atlas 2 Volume III-Colorado). • Basin sizes ranged from 351 acres to 1 acre. S:\PROJECI'S\1086 EnCana\031 PK21_Pll0
Road\Design\Drainage\Dr;~inage Report.doc FDR-4
• The basins produced and average of 1.1 inches of runoff (on average approximately 1.5 inch of rainfall was lost to infiltration and other losses). • The runoff rate for the basins
ranged from 0.10 to 0.98 cfs per acre. Given the terrain, vegetation, soils, and conservative values used for the model! expected these values to be 0.5 cfs/acre or higher. Accordingly,
pipes were sized to handle at least 0.5 cfs/acre, which means some of them have high factors of safety for conveyance capacity. • Model continuity for runoff (hydrology) was 0.000% and
-0.056% for routing (hydraulic). These values are within the acceptable range. IV. CONCLUSIONS The policy, design criteria, design constraints, methods of analysis, recommendations,
and conclusions presented in this report are in conformance with standard engineering practice and Article VII Standards Section 7-207 Stormwater Runoff of Garfield County Unified Land
Use Resolution of 2008, as amended 7-19. The proposed design will effectively manage stormwater and provide stormwater BMPs. The proposed BMPs are simple, easy to inspect, easy to maintain,
and proven to work effectively. 5:\PROJECTS\ 1086 EnCana\031 PK21_Pl20 Road\ Design\ Drainage\ Drainage Report.doc FDR-5
FIGURES
cana Oil & Gas {USA) Inc. Job # 1086-031 FIGURE CONSULTANTS PK21-PI20 ROAD -GENERAL LOCATION MAP 1 RIVER CITY DATE ISSUED: 08/31/11 SCALE AS SHOWN )JECTS\1086 EnCana\Oll PK21_PI20 Road\De>ign\Drainag
~\Modeling Bas~m.dwg, 8/31/2011 3:41:17 PM, HP Loser Jet 5200 Series PCL S,
k~~=---=~·:_~~~~--~:---~--/:--;~~;-'it I -·--"~-I ' ' ::-' ,_ -//1 I ~ '. I . • /... //.. ~ ~ _·_-:_::.. :"""' I I ' 1 ' a~ -.::-___ ~;:; · .. _____ ·----· --·--·-:~/~;~~-;,_>_ .. ---·
---X -~;?~~~~;:>< . ·:· /-:-:-,, '/;' + • ---..... --i-----/<~--b "N ' ro I I ' I \ ~---ti----f ill t 1 ' --~-~~ " ~ ! -~~---~-.0 f ~;~ fti ~ • _;;.:i,'i' • <( ! our //... I "'f'l! ·~~·--~--~~:!..
~ J~P /(1 r. /T;/--\~-~ i~~~ 1 J;~ //·' -. --'d'Ht ~ I o"';5-• '• 1 /"(". ' \ ·:a~ <t ~ //'>. mO>ZW /' -~ //-..........:.:, I ~I/---(Y." ::-___ _ ,, ' '//) ,.: ;.. I I o/'"1''7·//0 //1/'
;; /I .,,. ,/c .. '/'I' 7 '' i -~ I• i! -;"-'> I u ! ~ B~ ~-i.;; ! I i' I' '. II' 1 \\ r \\ I ii ~' ; ;1 ,'I lt '~ ' /I .' ' ;'///I I /I I . /~~~· . '-r~-· :X/' /h• :' /_;f '-.. -----,,"
1/;,--x;:....----· (1 '' ··, /, .. < ~" ,~----· E :( --------I ,///-+-., ~--c:' \____ ~:~~::::.-= ' \ ~ .. :-~->' > ' \ i I I ' w :::; "~ ~ "' w .w I ""'' 3a::::!;:l :0 0 0 u u »->-w
""' '" u "<' Oro N <D 3:«tNN w r~l"lro 1-o.fii""J~ >-"'-< <w "w' ""'' "<' -.IT ' I ~ I -' '~ r~', -'' '' ~ ~ lj .,I~K~ I "; 1.L ""' :ll \.._. G • ,-' ,r~ 'I ;2:,~, ~ ,r ' ,j) z 0 "u
ill :"s' "u': o: S!i 0 "' w J ' 1 ,:, j -.'il ;lt~ ·~ 1s oi ;:; 0 I "u' ~ < , 0 ~~~ ~ Gi!i3 W -~r ~ -0 "u' ' t3sJ tu LJ-1.! .. I o ~m ~~ -.. ----1, ili. l,j g 00<£+•1 .::; ;t ~ 90'L---...
~ oOm'4•• ~ "0 1 "' •= :::i go;;:;,.. oo-~'1+>• '-' 0::: ':; l';i o ~ ~0 8 ~ {!) a:: ci ~ lil O"OV."•L 'l~,..._ ,_;;0_ ~~VI ·-.,.... Q) ~!_~~ 0 ~'S ~~ 00~.. ftl 0... '-I I t:: 0... ~._._
:~~. fC! c(j g j .• ,.1 loL.~H_tu_ :1_Ju.:-=1t ~5' [8!!11 :1\J!~il ill!li i: ! ! II' I -'" • oo¥r+r, oo"'W"+< • ~ ~~~!+t++Hi-HfiiiHH+ift 00~(1 · 1 e~1 f;;~' >-" ~~~~~ ~ .~ .. • ~~ 0j
.~.. ,.. •" 0w::"· .. Ill >: OO=~t l \""' '~~ 0-:: ~ ''!;<i, lr~•&;r !Iii : j' l ..... j s;; ~~ fl· •'ol •=-~l .,....._. •• OO~i+n w lHL-00~!1 ' GJ_; ~~i~f L~,;;ji S::~·:++lllfi~~~~~
~~ ' .o/: ~l : 1ftl L:·' ".t!~!: ".:'·. . ljl 1~', -' . -~+4'.: I r. , iimfi 11 !l1 ,;: II: ~rlifhri~1T':; It! I;~~ .,~~fi HID~·~~ 111,, I, 1 :'IFH+amm ~t~tttttrttl ii " 1, ., '"'hfr"
:'I ~~.I i]n:I .:.: !: ',!,!! \[, !· 0 1' JlJI ,, 1: 11 • 1 1 ' !!I' ! ; UC>!)Oil~[) ~·., OO~OL oJf,!;_6 00~6 o&tf+, /,0'0 oo"<Z+; .JMv •o·toO<r+a ... ,_ o.rm. 'ill: 00 O>+t o;·g-0~<
00~. tnoo(W;-g ll"l_",".,". ' 0~~ 0~< ·oo""mo ow,;:, o$, o~• ""' oo·•-~. ~ ., ""~' L>'Z-~ oJ&z oo~z £-z ~ OO><+L t o"O'iW' "•• t•n:-oo'U""•• ~ 0~0~~:o ~ -· 00~0 ~.;;?,;I ~ ~~): ~ H !b
' ·' h~~ :',<1 ~ ~!l ~gei~ :>._,~~ ~a~~ ~~~~ Iii:~~ I"'a~~~~ ~t~~ ~~ .. :; iP'~'d f!'W'lz ~~~§ ~ ~i§~ ! ~~~~~;'§ g~"~"':"'g"'~ff&i"i' ,..,;::~ill::;; ~s;~~*§ ~~~~~5~ U~:~h :;:~ 3"!!i2
iieo;i.:,,, 'o •, o' ~i>!L~,_i!' ~?(~~:t:i:l:) <t::i!:l:l~:<:~~., ~5\Si!: ~!5" jl:~~w§f;::." .,!l:~;;::~a;: tiil{;]~i~~!:l 0"~::;~"~'-<i;i ~~3:=!~~~g ~~~~~i~! ;~;~,~~~~ !=!"'"' ~;;!
... ~ ~~~~h~\5 ~~~~aot:;;.:~:t L .. --·------.. ""'"'-. ...., .... ._ ... .,.,"""">"_,.,,_
I I I , .... ,.~~-·"'-"""''-""-'-""""'""" ______ ,_ _ .... ,..,... z ~-;;;!"~ill"'~~ :i'i~~::.~"'F~ h-~"'i"l'"~<~>"~~~~ :d>;'r:~g~~ p~;!~§~<" ()g:~:"~~ .:.: :~~~;\l;!a";'>:~~"g"~ ::~~!i~!~
;~i~~~"': :;i!?"'~"' ~~-.'=~!.l~::: ,..oiHl:i!::l" ~.. ~. . l "fii;" I ~ ~ ~ ~ ~ 8 '• ;'11 j I' 'i ; '1, I I:" . ' I i ~ ~-1M TCH !ll.INE'' _;;~!~~~~FMEo· ~ \i= ·-~: ''''!.I f I, : H
' ; iC§"'~ 'L. , ! : 1 1 ·!,.: '"'' ;; I ·' ~~~j~J rn :. I ,,~.!Jl~i!!lift !-1! !; : "' ' ''"' r.t;;J' ,, ;;,, ' 10~00 I .. _, '.l~':"r , 'I' "" ,,,_-, 17•>'00 ll:-··:I ~~ J!i-~ ;:!"''·
i•' "' •:: .. hll~"" ,_,., 'I' m ~; \ 1 :: . :! i ~~~ !~!; ; i: ' ' ' :I, "-thl ;·~~ "· I . . 1.; ~ ~~u ~s~5~~~ ~§~~~~0 E~-"~ij!! i;li~ii "1\1," .. -f8ttf+' ~ '•'I '" ,:=:. , ~ ,.~ 'iJ"l
:.lLw_ i. • ~ ._i •ic~--~ iiTiln' 1-;t'.W. ----j /,~/;/-~ --·-·--1,./1;._/',./, ' , . .---t--' : I;,./,/. ~ //--~-,.~:!:~'" );;;.; /. //"!-~ .-///_: ~~~~~~i ... ~Eil~8B u~~~~$ 2::1;~:::~
::" o;.::::::;l!: ~ ~~~~ ~ ~~~~ 2E~;: g~c:li! ~;~g go<>,\; il!! ~~~~ 1: <>~ ~!~I £8g ~~~~ "~~'"~~' 01~li:'i' ~ ... .., u? ~~~ I 111111.1 I ,.. !:: •ij! : = i1 I ! 1i! I 1~ ... ,_.' .g
"•!,! ··-+1-_-f~_~, ·,r ·r·ji"·1:_ I1 :-'1i -,•,--1, "'li!' J,.,_,oo;,.,.k\t_-t+il L LLLlL, I _, . ·' n i : . i I: i :! : :l 1~~o 11 Ll 13~0 ··.: , .. ,g. '"'li!' ,;r: I' I' · 1=.:."
" f! ~-~1f~1H· !I '· ll1_ 19~~0 •• oo.oo ---="' 20~00 -o.•• 20~00 20~00 ~ 21•>' 00 1:11'" 21~00 21*00 1 " i!j ;:1; ! ! -.!l.! ' I • '1 cL.. ' /1111111~ .~~• . ·: .,..il 1:1·, ::~:"7"'"11
I ' • -! ~ ' ' : i i ! I : ' ' . I !\1 I ;;;o .:;::: ·m :::o :o :=i ·-< H , ..t.t on~ [ ~ fr ' lm I •,, ' ' . ... 2'1<::!1"""0 ~ j; 0 0 R> :j' 0 2;"""0 ].:~ 0 ~I ~ 0,~ ~ +0 "' O0~o .."..'_
I g_ &3 '"):'' ':-.; ~ ~ ~~ " I :____. r) 0 '" -"' -1?•?5.00 = 22~00 "fift-"" ~""~ 2Jnf00 2J*"" "-3:~%.0" , .. ~, ---,.--24~00 2<~<10 24~00 --"ll%"-25.w,.oo ?~;O:j!I.OO '" "tr,"o ~ 2~ffioo
"'i*"" ~·ill.liO J.Q1 ~ 27~00 27>00.00 TI2 211,:..& 00 ~ '"*00 -2"m"" 28ill,ll0 '" ~ 129*00 29fl&OO 29~-~;oo ~ JO!",ll.OO 1,1a '"±*.00 ... "'~-~~00 '---"----1 "' J1*00 l1~00 '·"" J1*00
~ I-J2~0<J I -I.J9 ~ ~ t::J i'': l:' . ' ' II -"'" j~~-'I' ~"·~m· ------i-.iHt--.I -_I-.I_ -~-i"I_: -I •I. _"'§,.:.;:: I· !-;:_ .•. "_~ ~~!I .,j II\" I ' I ' ' ' --. · , II i! il I :•'
U_ ~ '.'I J; __:; ~i ' I 'JJ~!i.'l-I:: i' Li c. 1 ~-''II filil1 F~ 1t+TH'm : II. ~:.:1111\n il:i:. I ' 1-·i· !!' I ' 'i!i 1111 IUl 111 ~ ,, '· i .I" :.r;-·t 1,, i:l: ·-+" i 4 ; ~ I<
I' ii: I .,,' 'II ~··· ~ ' . ... . --~ -t ~ i.;~ ~s I i I I 1 .I I "• •r¥ it+~ ~ J.!-L_,_ "_. I gi~ ~~: !' ,[" I; ' I '. • ... ~ .. ••• •i . II '•I I ' :·:· jl:l_::i I ' I I cft!tt~,-'1
ITr ::::,! I! ~ //1/,,_.,.,;/\·,.-----.. .-... .-//: • '/1 " /,,:f' "I--7,.-,',' .,'/-~i/'', 1;,:/tf ~-\1·/>:>;//. ·, _:-;:.-~.-~.. >_ .. /=-·. \; ,' t I I/' I ------''\, ' : I \ x,
I I hI \ ' \\' I, I I ' I 1 I 'f. ' /' 't I i I 1 /' I 1 ' I • ~~-~-~;/'\ ___ ~-~·---. ./: .' ·:~-·'\ ', .; /F;~~:>~=;:. -~:._--· ·; ''; \ I'"· __' .:. 'I' ·'' ., .///. -~~~ i ' • ~
"l.-I/! ' i---• ' '... ~I /;..-" \ ---------;--·--'·. -.¥_'_ ~ ;r-~~-----_....( ' /.----.... ____ ~ '',,, ' ' ' ' -----.... .......,..._, --, -·. \ ' ' -----!:~ -,.._._ ' \ --.... ,
.... '"'-:..,, ' ' ' I -.... ,, --,""'-,, ''•·.._ ... \ -.. ,,_ ' \
APPENDIX A Calculations
-
Autodesk Storm and Sanitary Analysis ~ "I"
Autodesk® Storm and sanitary Analysis 2012 -Version 6.4.29 (Build 6198) ******************* Project Description ******************* File Name 1086-031 Cutoff Road.SPF ****************
Analysis Options **************** Flow Units ................ cfs Subbasin Hydrograph Method. EPA SWMM Infiltration Method ....... scs Curve Number Link Routing Method ....... Hydrodynamic
Storage Node Exfiltration .. None Starting Date ............. FEB-01-2011 00:00:00 Ending Date ............... FEB-04-2011 00:00:00 Antecedent Dry Days ....... 0.0 Report Time Step ..........
00:00:05 Wet Time Step ............. 00:00:05 Dry Time Step ............. 00:05:00 Routing Time Step ......... 1.00 sec ************* Element Count ************* Number of rain gages
Number of subbasins ....... Number of nodes ........... Number of links ........... Number of pollutants Number of land uses **************** Raingage Summary **************** Gage ID
...... ....... nata source 1 7 14 7 0 0 Data Type Recording Interval min Rain Gage-01 Garfield County 100 year 24 hourCUMULATIVE 1.00 **************** Subbasin Summary ****************
Subbasin ID 1 2 3 4 5 6 7 ************ Node Summary ************ Total Area acres 3.23 0.97 351.40 16.98 56.20 8.80 4. 67 Autodesk Storm and Sanitary Analysis Equiv. Width ft 124.21
63.34 1166.45 116.40 280.43 130.29 190.60 Imperv. Area % 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Average Slope % 12.0000 12.0000 17.6000 11.0000 12.4000 10.0000 8.2500 Raingage Rain Gage-01
Rain Gage-01 Rain Gage-01 Rain Gage-01 Rain Gage-01 Rain Gage-0).' Rain Gage-0~
Node ID Jun-1 Jun-2 Jun-3 Jun-4 Jun-5 Jun-6 Jun-7 Out-01 Out-02 Out-03 Out-04 Out-05 Out-06 Out-07 ************ Link Summary ************ Link ID Element Type JUNCTION JUNCTION JUNCTION
JUNCTION JUNCTION JUNCTION JUNCTION OUTFALL OUTFALL OUTFALL OUTFALL OUTFALL OUTFALL OUTFALL From Node To Invert Elevation ft 5907.00 5899.00 5851.00 5892.00 5917.00 5916.14 5912.50 5901.00
5895.00 5845.00 5875.00 5913.00 5915.00 5911.50 Node Maximum Elev. ft 5913.00 5902.00 5877.00 5903.00 5921.00 5919.14 5915.00 5902.50 5896.50 5850.00 5877.00 5916.00 5916.50 5913.00
Element Type Ponded Area ft' 1.00 1. 00 1.00 1. 00 1.00 1.00 1. 00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Length ft External Inflow Slope % Manning's Roughness -------------------------------------------
-------------------------------------------------Link-1 Jun-1 Link-2 Jun-2 Link-3 Jun-3 Link-4 Jun-4 Link-S Jun-5 Link-6 Jun-6 Link-7 Jun-7 ********************* Cross Section Summary
********************* Link Design ID Flow Capacity cfs ---------Link-1 17.56 Link-2 14.29 Link-3 336.67 Link-4 43.41 Link-S 110.97 Link-6 10.61 Link-7 10.39 Shape CIRCULAR CIRCULAR CIRCULAR
CIRCULAR CIRCULAR CIRCULAR CIRCULAR ************************** Runoff Quantity Continuity Autodesk Storm and Sanitary Analysis Out-01 Out-02 Out-03 Out-04 Out-05 Out-06 Out-07 Depth/Diameter
ft 1.50 1. 50 5.00 2.00 3.00 1.50 1. 50 Volume acre-ft CONDUIT 63.0 9. 5268 0.0240 CONDUIT 63.4 6.3101 0.0240 CONDUIT 105.3 5.6953 0.0240 CONDUIT 135.5 12.5480 0.0240 CONDUIT 42.4 9.4340
0.0240 CONDUIT 32.8 3.4746 0.0240 CONDUIT 30.0 3.3333 0.0240 Width No. of Cross Full Flow Barrels Sectional Hydraulic Area Radius ft ft' ft 1. 50 1 1. 77 0.38 1.50 1 1. 77 0.38 5.00
1 19.63 1.25 2.00 1 3.14 0.50 3.00 1 7. 07 0.75 1. 50 1 1. 77 0.38 1.50 1 1. 77 0.38 Depth inches
************************** Total Precipitation ..... . Evaporation Loss ........ . Infiltration Loss ....... . Surface Runoff .......... . Final Surface Storage ... . Continuity Error
(%) ************************** Flow Routing Continuity ************************** Dry Weather Inflow Wet weather Inflow ...... . Groundwater Inflow ...... . RDII Inflow ... , , , .......
. External Inflow ......... . External Outflow ........ . Surface Flooding ........ . Evaporation Loss ........ . Initial Stored Volume ... . Final Stored Volume Continuity Error (%)
95.823 0.000 56.908 37.082 1. 834 0.000 Volume acre-ft 0.000 37.082 0.000 0.000 0.000 37.102 0.000 0.000 0.000 0.000 -0.056 ****************************************** Composite Curve
Number Computations Report ****************************************** Subbasin 1 Soil/Surface Description Sagebrush range, Poor Composite Area & Weighted CN Subbasin 2 Soil/Surface Description
Sagebrush range, Poor Composite Area & Weighted CN Subbasin 3 Soil/Surface Description Pinyon & Juniper range, Poor Pinyon & Juniper range, Fair Composite Area & Weighted CN Subbasin
4 Soil/Surface Description Sagebrush range, Poor Composite Area & Weighted CN Autodesk Storm and Sanitary Analysis 2.600 0.000 1.544 1.006 0.050 Volume Mgallons 0.000 12.084 0.000 0.000
0.000 12.090 0.000 0.000 0.000 0.000 Area (acres) 3.23 3.23 Area {acres) 0.97 0.97 Area (acres) 175.70 175.70 351,40 Area (acres) 16.98 16.98 Soil Group c soil Group c Soil Group c c
Soil Group c CN 80.00 80.00 CN 80.00 80.00 CN 85.00 73.00 79.00 CN 80.00 80.00
Subbasin 5 Soil/Surface Description Sagebrush range, Poor Oak & Aspen range, Fair Composite Area & Weighted CN Subbasin 6 Soil/Surface Description sagebrush range, Poor Composite Area
& Weighted CN Subbasin 7 Soil/Surface Description Sagebrush range, Poor Newly graded area Composite Area & Weighted CN Area (acres) 36.53 19.67 56.20 Area (acres) 8.80 8.80 Area (acres)
4.21 0. 47 4.67 ************************************************** EPA SWMM Time of Concentration Computations Report ************************************************** Tc = (0.94 *
(1"0.6) * (n"0.6)) I ((i"0.4) * (S"0.3)) Where: Tc Time of Concentration (min) L Flow Length (ft) n Manning's Roughness i Rainfall Intensity (in/hr) s Slope (ft/ft) Subbasin 1 Flow length
(ft): Pervious Manning's Roughness: Impervious Manning's Roughness: Pervious Rainfall Intensity (in/hr): Impervious Rainfall Intensity (in/hr) : Slope (%) : Computed TOC (minutes) :
Subbasin 2 Flow length (ft): Pervious Manning's Roughness: Impervious Manning's Roughness: Pervious Rainfall Intensity (in/hr): Impervious Rainfall Intensity (in/hr): Slope (%): Computed
TOC (minutes): Autodesk Storm and Sanitary Analysis 1133.70 0.13000 0.01500 0.10833 0.10833 12.00000 86.44 663.88 0. 13000 0.01500 0.10833 0.10833 12.00000 62.70 Soil Group c c Soil
Group c Soil Group c c CN 80.00 57.00 71.95 CN 80.00 80.00 CN 80.00 91.00 81.10
-------Subbasin Time of ID Concentration hh:mm:ss 1 01:26:26 2 01:02:42 3 06:04:57 4 04:09:37 5 04:51:20 6 02:41:47 7 01:33:19 k-•'~ 5.1. ":, o·'lr ;s,.4 ,~.,~ 5H 6·8 '/.(,'f Total Rainfall
in 2.60 2.60 2.60 2.60 2. 60 2.60 2. 60 Total Total Run on Evap. in in 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Total Total Infil. Runoff in in 1. 36 1.19
1. 35 1.20 1.53 1.02 1. 43 1.12 1. 75 0.80 1.39 1.16 1. 31 1.24 Peak Runoff Runoff Coefficient cfs c<~,._ 2.3o o.?l o.4sa o.9s o.'l& o.462 37. n o.!l o.394 3.12 6.1~ 0.431 5.35 0.10
0.309 2.ao o.~z... o.446 3.2s o;:JC> o.47s days 0 0 0 0 0 0 0 =======------------------------IWr.,-------------------------------i.T ___________ o~:lf+ ___________ _ ******************
Node Depth Summary ****************** Node Average ID Depth Attained ft Maximum Maximum Depth HGL Attained Attained ft ft Time of Max Total Total Retention Occurrence Flooded Time Time
Volume Flooded days hh:mm acre-in minutes hh:mrn:ss -----------------------------------------------------------------------------------------Jun-1 Jun-2 Jun-3 Jun-4 Jun-5 Jun-6 Jun-7
Out-01 Out-02 Out-03 Out-04 Out-05 Out-06 Out-07 ***************** Node Flow Summary ***************** Node ID Jun-1 Jun-2 0.04 0. 02 0.44 0.10 0.14 0. 08 0.06 0. 02 0. 01 0.24 0.06
0.08 0. 05 0. 04 Element Type JUNCTION JUNCTION Autodesk Storm and Sanitary Analysis 0.70 5907.70 0. 40 5899.40 2.11 5853.11 0.71 5892.71 0.78 5917.78 0.93 5917.07 1.02 5913.52 0.37
5901.37 0.26 5895.26 1.13 5846.13 0.36 5875.36 0.45 5913.45 0.53 5915.53 0.59 5912.09 Maximum Lateral Inflow cfs Peak Inflow 2.30 0.95 cfs 2.30 0.95 0 12:02 0 11:58 0 13:01 0 12:36 0
12:58 0 12:04 0 12:01 0 12:02 0 11:58 0 13:01 0 12:36 0 12:58 0 12:04 0 12:05 Time of Peak Inflow Occurrence days hh:mrn 0 12:00 0 11:58 0 0 0 0 0 0 0 0 0 0 0 0 0 0 Maximum Flooding
Overflow cfs 0.00 0.00 0 0:00:00 0 0:00:00 0 0:00:00 0 0:00:00 0 0:00:00 0 0:00:00 0 0:00:00 0 0:00:00 0 0:00:00 0 0:00:00 0 0:00:00 0 0:00:00 0 0:00:00 0 0:00:00 Time of Peak Flooding
Occurrence days hh:mm
Jun-3 JUNCTION Jun-4 JUNCTION Jun-5 JUNCTION Jun-6 JUNCTION Jun-7 JUNCTION Out-01 OUTFALL Out-02 OUTFALL Out-03 OUTFALL Out-04 OUTFALL Out-05 OUTFALL Out-06 OUTFALL Out-07 OUTFALL *******************
**** Outfall Loading Summary *********************** Outfall Node ID Out-01 Out-02 Out-03 Out-04 Out-05 Out-06 Out-07 System ***************** Link Flow Summary ***************** Flow
Frequency (%) 24.27 21.92 48.64 38.45 35.67 30.54 25.45 32.13 -------------------------------Link ID Element Ratio of Total Reported Type Maximum Time Condition Flow Surcharged Depth
minutes 37.71 3.12 5.35 2.80 3.25 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Average Flow cfs 0.22 0.07 10.37 0.69 1. 77 0.47 0.32 13.92 Time 37.71 3.12 5. 35 2.80 3.25 2. 30 0. 95 37.71 3.14
5.35 2.80 3.36 Peak Inflow cfs 2.30 0.95 37.71 3.14 5.35 2.80 3.36 52.48 of Maximum Peak Flow Velocity Occurrence Attained days hh:mm ft/sec 0 13:01 0.00 0 12:28 0.00 0 12:58 0.00 0
12:04 0.00 0 12:00 0.00 0 12:02 0.00 0 11:58 0.00 0 13:01 0.00 0 12:36 0.00 0 12:58 0.00 0 12:04 0.00 0 12:05 0.00 Length Peak Flow Design Ratio of Factor during Flow Maximum Analysis
Capacity /Design cfs cfs Flow --------------------------------------------------------------------------------------------------------------------------------Link-1 CONDUIT 0 12:02 4.08
1. 00 2.30 17.56 D .13 0.36 0 Calculated Link-2 CONDUIT 0 11:58 3.25 1. 00 0. 95 14.29 0.07 0.22 0 Calculated Link-3 CONDUIT 0 13:01 6.82 1. 00 37.71 336.67 0.11 0.32 0 Calculated Link-4
CONDUIT 0 12:36 4.80 1.00 3.14 43.41 0.07 0.27 0 Calculated Link-S CONDUIT 0 12:58 5.13 1. 00 5.35 110.97 0.05 0.21 0 Calculated Link-6 CONDUIT 0 12:04 3. 63 1. 00 2.80 10.61 0.26 0.
48 0 Calculated Link-7 CONDUIT 0 12:05 3.73 1. 00 3.36 10.39 0.32 0.53 0 Calculated Autodesk Storm and Sanitary Analysis
*************************** Flow Classification Summary *************************** Link Dry Fraction of Up Down Dry Dry Time in Flow Sub Sup Crit Crit Link-1 0.15 0.00 Link-2 0.77 0.00
Link-3 0.15 0.00 Link-4 0.15 0.00 Link-S 0.16 0.00 Link-6 0. 68 0.00 Link-7 0.15 0.00 *************************** Time-Step Critical Elements *************************** None 0.00 0.65
0.00 0.05 0.00 0.54 0.00 0. 48 0.00 0.58 0.00 0.21 0.00 0.79 ******************************** Highest Flow Instability Indexes ******************************** Link Link-3 (10) Link
Link-S (7) Link Link-4 (51 Link Link-6 (5) Link Link-7 (3) ************************* Routing Time Step Summary ************************* Minimum Time Step Average Time Step Maximum Time
Step Percent in Steady State Average Iterations per Step 1.00 sec 1. 00 sec 1. DO sec 0.00 2.00 0.20 0.18 0. 32 0.37 0.26 0.10 0.06 Analysis began on: Analysis ended on: Total elapsed
time: wed Aug 31 07:19:04 2011 Wed Aug 31 07:19:12 2011 00:00:08 Autodesk Storm and Sanitary Analysis Class Up Crit 0.00 0. 00 0.00 0.00 0.00 0.00 0.00 Down Crit 0.00 0.00 0.00 0.00
0.00 0.00 0.00 Avg. Froude Number 0.31 0.26 0.52 0.52 0.45 0. 26 0.21 Avg. Flow Change 0.0001 0.0000 0.0004 0.0002 0.0003 0.0004 0.0002
Culvert Report Hydraflow Express Extension for AutoCAD® Civil 3D® 2012 by Autodesk, Inc. Culvert 1 Invert Elev Dn (ft) Pipe Length (ft) Slope(%) Invert Elev Up (ft) Rise (in) Shape Span
(in) No. Barrels n-Value Inlet Edge Coeff. K,M,c,Y,k Embankment Top Elevation (ft) Top Width (ft) Crest Width (ft) Elev {ft) 5915.00 5913.00 5911.00 5909.00 5907.00 5905.00 5903.00 5899.00
= 5901.00 = 65.00 = 9.23 = 5907.00 = 18.0 = Cir = 18.0 = 1 = 0.024 = Projecting = 0.0045, 2, 0.0317, 0.69, 0.5 = 5913.00 = 18.00 = 50.00 Culvert 1 --CirCulvert --HGL --Embank Calculations
Qmin (cfs) Qmax (cfs) Tailwater Elev (ft) Highlighted Qtota I ( cfs) Qpipe (cfs) Qovertop (cfs) Veloc Dn (ft/s) Veloc Up (ft/s) HGL Dn (ft) HGL Up (ft) Hw Elev (ft) Hw/D (ft) Flow Regime
Tuesday, Aug 30 2011 = 0.00 = 10.00 = (dc+D)/2 = 3.00 = 3.00 = 0.00 = 2.20 = 3.98 = 5902.08 = 5907.66 = 5907.92 = 0.61 = Inlet Control HwDepth (ft) 8.00 6.00 4.00 2.00 0.00 -2.00 -4.00
-6.00 -8.00 Reach (ft)
Culvert Report Hydraflow Express Extension for AutoCAD® Civil 3D® 2012 by Autodesk, Inc. Wednesday, Aug 31 2011 Culvert 2 Invert Elev On (ft) = 5892.00 Calculations Pipe Length (ft)
= 70.00 Qmin (cfs) = 0.00 Slope(%) = 11.43 Qmax (cfs) = 6.50 Invert Elev Up (ft) = 5900.00 Tailwater Elev (ft) = (dc+0)/2 Rise (in) = 18.0 Shape = Cir Highlighted Span (in) = 18.0 Qtotal
(cfs) = 6.50 No. Barrels = 1 Qpipe (cfs) = 6.50 n-Value = 0.024 Qovertop ( cfs) = 0.00 Inlet Edge = Projecting Veloc On (ft/s) = 4.15 Coeff. K,M,c,Y,k = 0.0045, 2, 0.0317, 0.69, 0.5
Veloc Up (ftls) = 5.26 HGL On (ft) = 5893.25 Embankment HGL Up (ft) = 5900.99 Top Elevation (ft) = 5902.00 Hw Elev (ft) = 5901.47 Top Width (ft) = 18.00 Hw/0 (ft) = 0.98 Crest Width
(ft) = 50.00 Flow Regime = Inlet Control E1ev {ft) Culvert2 Hw Depth (ft) 5904.00 4.00 5902.00 2.00 5900.00 0.00 5698.00 -2.00 6896.00 -4.00 58-94.00 ·6.00 5892.00 -8.00 5800.00 -10.00
o s 10 ts m ~ • • • • w u • u ro n m • oo --CirCulvert --HGL --Embank Reach (ft)
Culvert Report Hydraflow Express Extension for AutoCAD® Civil 3D® 2012 by Autodesk, Inc. Culvert 3 Invert Elev Dn (ft) Pipe Length (ft) Slope(%) Invert Elev Up (ft) Rise (in) Shape Span
(in) No. Barrels n-Value Inlet Edge Coeff. K,M,c,Y,k Embankment Top Elevation (ft) Top Width (ft) Crest Width (ft) Elev (ft) 5880.00 5874.00 58£8.00 5862.00 5856.00 5838.00 = 5844.03
= 105.00 = 6.10 = 5850.44 = 60.0 = Cir = 60.0 = 1 = 0.024 = Projecting = 0.0045, 2, 0.0317, 0.69, 0.5 = 5877.00 = 18.00 = 50.00 Culvert3 --CirCu-lvert --HGL --Embank Calculations Qmin
(cfs) Qmax (cfs) Tailwater Elev (ft) Highlighted Qtotal (cfs) Qpipe (cfs) Qovertop ( cfs) Veloc Dn (ft/s) Veloc Up (ft/s) HGL Dn (ft) HGL Up (ft) Hw Elev (ft) Hw/D (ft) Flow Regime Wednesday,
Aug 31 2011 = 0.00 = 350.00 = (dc+D)/2 = 120.00 = 120.00 = 0.00 = 7.01 = 9.24 =5848.10 = 5853.58 = 5855.07 = 0.93 = Inlet Control Hw Depth {ft) 29.56 23.56 17.56 11.56 5.56 ~0.44 -6.44
-12.44 Reach (ft)
Culvert Report Hydraflow Express Extension for AutoCAD® Civil 3D® 2012 by Autodesk, Inc. Culvert 3 Invert Elev On (ft) Pipe Length (ft) Slope(%) Invert Elev Up (ft) Rise (in) Shape Span
(in) No. Barrels n-Value Inlet Edge Coeff. K,M,c,Y,k Embankment Top Elevation (ft) Top Width (ft) Crest Width (ft) Elev {ft) 5600.00 5874.00 5868.00 5862.00 5856.00 = 5844.03 = 105.00
= 6.10 = 5850.44 = 60.0 = Cir = 60.0 = 1 = 0.024 = Projecting = 0.0045, 2, 0.0317, 0.69, 0.5 = 5877.00 = 18.00 = 50.00 Culvert 3 --CirCulvert --HGL --Embank Calculations Qmin (cfs) Qmax
(cfs) Tailwater Elev (ft) Highlighted Qtotal ( cfs) Qpipe (cfs) Qovertop ( cfs) Veloc On (ftls) Veloc Up (ft!s) HGL Dn (ft) HGL Up (ft) Hw Elev (ft) Hw/D (ft) Flow Regime Wednesday,
Aug 31 2011 = 0.00 = 350.00 = (dc+D)/2 = 350.00 = 350.00 = 0.00 = 17.90 = 18.04 = 5848.94 = 5855.26 = 5863.81 = 2.67 = Inlet Control HwDepth (fl) 29.5'6 23.56 17.56 11 . .56 5.56 -0.44
-6.44 Reach (ft)
Culvert Report Hydraflow Express Extension for AutoCAD® Civil 3D® 2012 by Autodesk, Inc. Culvert 4 Invert Elev On (ft) Pipe Length (ft) Slope(%) Invert Elev Up (ft) Rise (in) Shape Span
(in) No. Barrels n-Value Inlet Edge Coeff. K,M,c,Y,k Embankment Top Elevation (ft) Top Width (ft) Crest Width (ft) E!ev {fl) 5904.00 5898.00 5892.00 5886.00 5800.00 --CirCulvert = 5874.00
= 136.00 = 13.22 = 5891.98 = 24.0 = Cir = 24.0 = 1 = 0.024 = Projecting = 0.0045, 2, 0.0317, 0.69, 0.5 = 5903.00 = 18.00 = 50.00 Culvert 4 --Embank Calculations Qmin (cfs) Qmax (cfs)
Tailwater Elev (ft) Highlighted Qtota I ( cfs) Qpipe (cfs) Qovertop ( cfs) Veloc On (ft/s) Veloc Up (ft/s) HGL On (ft) HGL Up (ft) Hw Elev (ft) Hw/0 (ft) Flow Regime Wednesday, Aug 31
2011 = 0.00 = 17.00 = (dc+0)/2 = 13.00 = 13.00 = 0.00 = 4.68 = 5.99 = 5875.65 = 5893.28 = 5893.90 = 0.96 = Inlet Control HwDepth {ft) 12.02 6.02 0.02 ...0.98 -11.98 -17.98-Reach (ft)
Culvert Report Hydraflow Express Extension for AutoCAD® Civil 3D® 2012 by Autodesk, Inc. Culvert 5 Invert Elev Dn (ft) Pipe Length (ft) Slope(%) Invert Elev Up (ft) Rise (in) Shape Span
(in) No. Barrels n-Value Inlet Edge Coeff. K,M,c,Y,k Embankment Top Elevation (ft) Top Width (ft) Crest Width (ft) Elev {ft) 5924.00 5922.00 5920.00 5918.00 5916.00 5914.00 = 5910.60
= 66.00 = 11.27 = 5918.04 = 36.0 = Cir = 36.0 = 1 = 0.024 = Projecting = 0.0045, 2, 0.0317, 0.69, 0.5 = 5922.00 = 18.00 = 50.00 Culvert 5 --GirCulvert --HGL --Embank Calculations Qmin
(cfs) Qmax (cfs) Tailwater Elev (ft) Highlighted Qtotal (cfs) Qpipe (cfs) Qovertop (cfs) Veloc Dn (ft/s) Veloc Up (ft/s) HGL Dn (ft) HGL Up (ft) Hw Elev (ft) Hw/D (ft) Flow Regime Wednesday,
Aug 31 2011 = 0.00 = 50.00 = (dc+D)/2 = 35.00 = 35.00 = 0.00 = 5.63 = 7.29 = 5913.06 = 5919.97 = 5920.89 = 0.95 = Inlet Control HwDepth {fl:) 5.98 3.96 1.98 -0.04 -2.04 -4.04 -6.04 -8.04
Reach {ft)
Culvert Report Hydraflow Express Extension for AutoCAD® Civil 3D® 2012 by Autodesk, Inc. Culvert 6 Invert Elev On (ft) Pipe Length (ft) Slope(%) Invert Elev Up (ft) Rise (in) Shape Span
(in) No. Barrels n-Value Inlet Edge Coeff. K,M,c,Y,k Embankment Top Elevation (ft) Top Width (ft) Crest Width (ft) Elev (ft) 5921.00 5920.00 5919.00 5917.00 5915.00 = 5915.63 = 35.00
= 6.37 = 5917.86 = 18.0 = Cir = 18.0 = 1 = 0.024 = Projecting = 0.0045, 2, 0.0317, 0.69, 0.5 = 5920.00 = 18.00 = 50.00 Culvert 6 --CirGulvert --HGL --Embank Calculations Qmin (cfs) Qmax
(cfs) Tailwater Elev (ft) Highlighted Qtota I ( cfs) Qpipe (cfs) Qovertop ( cfs) Veloc On (ft/s) Veloc Up (ft/s) HGL On (ft) HGL Up (ft) Hw Elev (ft) Hw/0 (ft) Flow Regime Wednesday,
Aug 31 2011 = 0.00 = 10.00 = (dc+0)/2 = 6.00 = 6.00 = 0.00 = 3.88 = 5.09 = 5916.85 = 5918.81 = 5919.26 = 0.93 = Inlet Control HwDepth (ft) 3.14 2.14 1.14 0.14 ·0.86 -1.86 -2.86 Reach
(ft)
Culvert Report Hydraflow Express Extension for Auto CAD® Civil 3D® 2012 by Autodesk, Inc. Culvert 7 Invert Elev Dn (ft) Pipe Length (ft) Slope(%) Invert Elev Up (ft) Rise (in) Shape
Span (in) No. Barrels n-Value Inlet Edge Coeff. K,M,c,Y,k Embankment Top Elevation (ft) Top Width (ft) Crest Width (ft) = 5905.90 = 35.00 = 1.00 = 5906.25 = 18.0 = Cir = 18.0 = 1 = 0.024
= Projecting = 0.0045, 2, 0.0317, 0.69, 0.5 = 5908.00 = 18.00 = 50.00 Calculations Qmin (cfs) Qmax (cfs) Tailwater Elev (ft) Highlighted Qtotal (cfs) Qpipe (cfs) Qovertop ( cfs) Veloc
Dn (ft/s) Veloc Up (ft/s) HGL Dn (ft) HGL Up (ft) Hw Elev (ft) Hw/D (ft) Flow Regime Wednesday, Aug 31 2011 = 0.00 = 7.00 = (dc+D)/2 = 6.00 = 6.00 = 0.00 = 3.88 = 3.76 =5907.13 = 5907.52
= 5907.65 = 0.94 = Inlet Control E!ev {ft) Culvert 7 H\'1 Depth {ft) 5909.00 -.--,---.---,---,---.----.--.--.,----.--.---,--2.75 --CirGulvert --HGL --Embank Reach (ft}
Channel Report Hydraflow Express Extension for AutoCAD® Civil 3D® 2012 by Autodesk, Inc. Monday, Aug 29 2011 West Irrigation Ditch Trapezoidal Bottom Width (ft) Side Slopes (z:1) Total
Depth (ft) Invert Elev (ft) Slope(%) N-Value Calculations Compute by: Known Depth (ft) Elev (ft) 02.00 = 2.00 = 2.60, 1.00 = 1.50 = 100.00 =9.40 = 0.025 Known Depth = 1.50 Section Highlighted
Depth (ft) Q (cfs) Area (sqft) Velocity (ft/s) Wetted Perim (ft) Grit Depth, Yc (ft) Top Width (ft) EGL (ft) = 1.50 = 115.23 = 7.05 = 16.34 = 8.30 = 1.50 = 7.40 = 5.65 ----1------1----1--------1----1
·---------1----f-----j ···-----·-·-!--------· ·----------------------1-----------------+------101.50 101.00 100.50 1-----+-----1------1--------v----------------------------1------~~'\.--~
-----------+---=:=------= ~f_ _ ----1----r---""----------1--. 1~-----------"-· +---+---·-· -----!----=-=~;~~~===?/=:~= Depth (ft) 1.50 1.00 0.50 100.00 ::. --~ ·: "'~ ~.-~~=-t =----·
-t---+--+-----+---+-----"'+---1---'+--+--+---+--0.00 ... . . ........ -------1--·---.. 99.50 ___L __ __[_ __ j__ _ __j_ __ _j__ __ _j__ __ t___ _ _j_ __ __j_ __ _L__ __ L_ -0.50 0 1
2 3 4 5 6 7 8 9 10 Reach (ft)
Culvert Report Hydraflow Express Extension for AutoCAD® Civil 3D® 2012 by Autodesk, Inc. West lrr Pipe Invert Elev On (ft) Pipe Length (ft) Slope(%) Invert Elev Up (ft) Rise (in) Shape
Span (in) No. Barrels n-Value Inlet Edge Coeff. K,M,c,Y,k Embankment Top Elevation (ft) Top Width (ft) Crest Width (ft) Elev(ft} 5942.00 5939.00 5936.00 5933.00 5930.00 5921.00 = 5924.15
= 42.00 = 2.62 = 5925.25 = 60.0 = Cir = 60.0 = 1 = 0.024 = Projecting = 0.0045, 2, 0.0317, 0.69, 0.5 = 5940.00 = 18.00 = 50.00 West lrr Pipe --Cir Culvert --HGL --Embank Calculations
Qmin (cfs) Qmax (cfs) Tailwater Elev (ft) Highlighted Qtotal (cfs) Qpipe (cfs) Qovertop (cfs) Veloc On (ft/s) Veloc Up (ft/s) HGL On (ft) HGL Up (ft) Hw Elev (ft) Hw/0 (ft) Flow Regime
Wednesday, Aug 31 2011 = 100.00 = 120.00 = (dc+0)/2 = 120.00 = 120.00 = 0.00 = 7.01 = 9.24 = 5928.22 = 5928.39 = 5929.89 = 0.93 = Inlet Control HwDepth {fl) 16.75 13.75 10.75 7.75 4.75
·1.25 -4.25 Reach ("It)
Channel Report Hydraflow Express Extension for AutoCAD® Civil 3D® 2012 by Autodesk, Inc. Monday, Aug 29 2011 East Irrigation Ditch Triangular Side Slopes (z:1) Total Depth (ft) Invert
Elev (ft) Slope(%) N-Value Calculations Compute. by: Known Depth (ft) Elev (ft) = 1.20, 3.20 = 1.50 = 100.00 = 1.20 = 0.025 Known Depth = 1.50 Section Highlighted Depth (ft) Q (cfs)
Area (sqft) Velocity (ft/s) Wetted Perim (ft) Crit Depth, Yc (ft) Top Width (ft) EGL (ft) = 1.50 = 24.71 = 4.95 = 4.99 = 7.37 = 1.50 = 6.60 = 1.89 Depth (ft) 02.00 ---,------,------,------,-------,--
-----,-------,---~--~--~ 2.00 101.50 101.00 100.50 100.00 r---~------------~--~~---------~· -------------·----------------------------··-------·--·----------. -··~----------~·-·-------·
-------------·----·--·--·---~----------------·v-------------··--· -~----------~-------------------~---:-:=~---\-=+::-:-----•-._· -.=·------~·--=--=-~--~-~:· /--~-·-.-·:---.---~--=---.----_--~~~~~~~-=
-;_;~~~~~==~;.~~-... ··=·· .... ·•·•· ~7"' -._ •.•....••.. --. -..... . ---···---..... ... 1.50 1.00 0.50 0.00 99.50 .......l..._ _. ......L._ __ ___j___ __ ___j___ _.. .....J..._ _..
.....J..._ __ ____t_ ___ ___J_ ___ __j_ __ __j_ -0.50 0 1 2 3 4 5 6 7 8 9 Reach (ft)
Culvert Report Hydraflow Express Extension for AutoCAD® Civil 3D® 2012 by Autodesk, Inc. East lrr Pipe Invert Elev Dn (ft) Pipe Length (ft) Slope(%) Invert Elev Up (ft) Rise (in) Shape
Span (in) No. Barrels n-Value Inlet Edge Coeff. K,M,c,Y,k Embankment Top Elevation (ft) Top Width (ft) Crest Width (ft) Elev (ft) 5871.00 5869.00 5867.00 5865.00 5863.00 = 5859.59 =
134.00 = 1.15 = 5861.13 = 36.0 = Cir = 36.0 = 1 = 0.024 = Projecting = 0.0045, 2, 0.0317, 0.69, 0.5 = 5870.00 = 18.00 = 50.00 EHst lrr Pipe --Cir Culvert --HGL --Embank Calculations
Qmin (cfs) Qmax (cfs) Tailwater Elev (ft) Highlighted Qtotal (cfs) Qpipe (cfs) Qovertop (cfs) Veloc Dn (fils) Veloc Up (fils) HGL Dn (ft) HGL Up (ft) Hw Elev (ft) Hw/D (ft) Flow Regime
Wednesday, Aug 31 2011 = 0.00 = 25.00 = (dc+D)/2 = 25.00 = 25.00 = 0.00 = 4.28 = 6.05 = 5861.90 = 5862.83 = 5863.45 = 0.77 = Inlet Control HwDepth (ft) 9.87 7.87 5.87 3.87 1.87 Reach
(ft)
APPENDIXB NRCS Web Soil Survey
39' 25'29" 39' 24'59' N A Hydrologic Soil Group-Rifie Area, Colorado, Par1s of Garfield and Mesa Counties (PK21 • P120 Road) Map Scale: U1,690 it prhlod on A olze {8.5' • 11'} •'-l ~:::5:0:
:~1:00: ::::~;2:0:0 ::::"~·30:0· ·:·~--..~ =============ee 350 700 1,400 2,10'0 ~ USQA Natural Resources Conservation Service Web Soil Survey National Cooperative Soil Survey 8n9/2011
Page1of4 39' 25' 28" 39' 24' sr
-USD\ Hydrologic Soil Group-Rifle Area, Colorado, Parts of Garfield and Mesa Counties (PK21 • Pl20 Road) MAP LEGEND Area of Interest (AOI) 0 Area of lnlerest (AOl) Solis 0 Soli Map Unils
Soli Ratings li!il A li!il AID liiil' lliJ B/0 [S] c ~ C/0 ti1l 0 ···.·; Not rated or Ml available Political Futures e Cilies Waler Features Streams and Canals Tra!"lsportatlon ~ Ralls
,.,..., lnlerstale Highways ,...._.. US Roules ~ Major Roads ~ Local Roads Natural Resources Conservation Service Web Soil Survey National Cooperative Soil Survey MAP INFORMATION Map
Scale: 1:6,690 if printed on A size (8.5" ~ 11") sheet. The soil surveys that comprise your AOI were mapped at 1:24,000. Warning: Soil Map may not be valid at this scale. Enlargement
of maps beyond the scale of mapping can cause misunderstanding of the detail of mapping and accuracy of soil line placement. The maps do not show the small areas of contrasting soils
that could have been shown at a more detailed scale. Please rely on the bar scale on each map sheet for accurate map measurements. Source of Map: Natural Resources Conservation Service
Web Soil Survey URL: http:/fwebsoilsurvey.nrcs.usda.gov Coordinate System: UTM Zone 12N NAD83 This product fs generated from the USDA·NRCS certified data as of the version date(s) listed
below. Soil Survey Area: Rifle Area, Colorado, Parts of Garfield and Mesa Counties survey Area Data: Version 6, Mar 25, 2008 Date(s) aerial Images were photographed: 818/2005 The orthophoto
or other base map on which the soil lines were compiled and digitized probably differs from the background imagery displayed on these maps. As a result, some minor shifting of map unit
boundaries may be evident. 8/2912011 Page2of4
Hydrologic Soil Group-Rifle Area, Colorado, Parts of Garfield and Mesa Counties Hydrologic Soil Group lldefonso stony loam, 6 to 25 percent slopes Description 8 8 126.2 38.8 Hydrologic
soil groups are based on estimates of runoff potential. Soils are assigned to one of four groups according to the rate of water infiltration when the soils are not protected by vegetation,
are thoroughly wet, and receive precipitation from long-duration storms. The soils in the United States are assigned to four groups (A. B, c. and D) and three dual classes (AID, B/D,
and C/D). The groups are defined as follows: Group A. Soils having a high infiltration rate (low runoff potential) when thoroughly wet. These consist mainly of deep, well drained to
excessively drained sands or gravelly sands. These soils have a high rate of water transmission. Group B. Soils having a moderate infiltration rate when thoroughly wet. These consist
chiefly of moderately deep or deep, moderately well drained or well drained soils that have moderately fine texture to moderately coarse texture. These soils have a moderate rate of
water transmission. Group C. Soils having a slow infiltration rate when thoroughly wet. These consist chiefly of soils having a layer that impedes the downward movement of water or soils
of moderately fine texture or fine texture. These soils have a slow rate of water transmission. Group D. Soils having a very slow infiltration rate (high runoff potential) when thoroughly
wet. These consist chiefly of clays that have a high shrink-swell potential, soils that have a high water table, soils that have a claypan or clay layer at or near the surface, and soils
that are shallow over nearly impervious material. These soils have a very slow rate of water transmission. If a soil is assigned to a dual hydrologic group (AID, B/D, or C/D), the first
letter is for drained areas and the second is for undrained areas. Only the soils that in their natural condition are in group D are assigned to dual classes. Rating Options Aggregation
Method: Dominant Condition Natural Resources Conservation Service Web Soil Survey National Cooperative Soil Survey PK21 -Pl20 Road 8/29/2011 Page 3 of 4
Hydrologic Soil Group-Rifle Area, Colorado, Parts of Garfield and Mesa Counties -USDA Component Percent Cutoff: None Specified Tie-break Rule: Higher Natural Resources Conservation Service
Web Soil Survey National Cooperative Soil Survey PK21 -Pl20 Road 8/29/2011 Page 4 of 4
:>9'25'29" 39' 24'59" K Factor, Whole Soli-Rifle Area, Colorado, Parts of Garfield and Mesa CounUas (PK21 -Pl20 Road) Map S.ol&' 1;6,600 if prilled on A oll:o (8.5" • 11') sheel Meters
!; .~~;.~'oo~=o~~,oo~. ...~ ';oo;.. .....~ o==o=o=o=o=o=o~ F""l 350 700 1,400 2,100 USDA Natural Resources iiliiiii. Conservation Service Web Soil Survey National Cooperative Soil Survey
8/29/2011 Page 1 of3 :>9'25'28' 39'14'57"
K Factor, Whole Soil--Rifle Area, Colorado, Parts of Garfield and Mesa Counties (PK21 • Pl20 Road) MAP LEGEND Area of Interest (AOI) 0 Area of Interest (AOI) Soils D Soil Map Units Soli
R~llngs lilii ·" lilii ·" lilii ·" Gill .15 Gill ·" D .20 D ·" D .,, D ·" D ·" !l!!l ·" !l!!l ·" !l!!l ·" iiiil ·" """-;! ""' Not rated Of not available PoUUcal Features • CiUes Water
Features ~ Streams and Canals Transportation m Rails Natural Resources Conservation Service ~ ~ ~~ ~ Interstate Highways US Routes Major Roads Local Roads Web Soil Survey National Cooperative
Soil Survey MAP INFORMATION Map Scala: 1:6,690 if printed on A size (8.5" ~ 11•) sheet. The soil surveys that comprise your AOI were mapped a\1:24,000. Warning: Soil Map may not be valid
at this scale. Enlargement of maps beyond the scale of mapping can cause misunderstanding of the detail of mapping and accuracy of soil line placement. The maps do not show the small
areas of contrasting soils that could have been shown at a more detailed scale. Please rely on the bar scale on each map sheet for accurate map measurements. Source of Map: Natural Resources
Conservation Service Web Soil Survey URL: http:flwebsollsurvey.nrcs.usda.gov Coordinate System: UTM Zone 12N NAD83 This product Is generated from the USDA·NRCS cerlif1ed data as of the
version date(s) listed below . Soil Survey Area: Rifle Area, Colorado, Parts of Garfield and Mesa Counties Survey Area Data: Version 6, Mar 25, 2008 Oate(s) aerial images were photographed;
8/8/2005 The orthophoto or other base map on which the soil lines were compiled and digitized probably differs from the background imagery displayed on these maps. As a result, some
minor shifting of map unit boundaries may be evident. 8/2912011 Page 2 of 3
K Factor, Whole Soil-Rifle Area, Colorado, Parts of Garfield and Mesa Counties -USDA K Factor, Whole Soil Description Erosion factor K indicates the susceptibility of a soil to sheet
and rill erosion by water. Factor K is one of six factors used in the Universal Soil Loss Equation (USLE) and the Revised Universal Soil Loss Equation (RUSLE) to predict the average
annual rate of soil loss by sheet and rill erosion in tons per acre per year. The estimates are based primarily on percentage of silt, sand, and organic matter and on soil structure
and saturated hydraulic conductivity (Ksat). Values of K range from 0.02 to 0.69. Other factors being equal, the higher the value, the more susceptible the soil is to sheet and rill
erosion by water. "Erosion factor Kw (whole soil)" indicates the erodibility of the whole soil. The estimates are modified by the presence of rock fragments. Rating Options Aggregation
Method: Dominant Condition Component Percent Cutoff: None Specified Tie-break Rule: Higher Layer Options: Surface Layer Natural Resources Conservation Service Web Soil SuNey National
Cooperative Soil SuNey PK21 • Pl20 Road 8/29/2011 Page 3 of 3