HomeMy WebLinkAboutApplicationGørfield County
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: Glqnwood Springs, CO 81601' le7ole45-82L2
GAR F I E L D C Ol¡lNt$arfield-counw.com
COMMUNITY DËVELOPMENÏ
TYPE OF GRAD¡NG
tr MAJOR tr MINOR
INVOLVED PARTIES
Property Owner:JoJo PÕpsdi€s, taEmie LLC, Mãhogany EnêEy Rssouræsãnd Ræky Mounþ¡ñ Nâlürâl Gâs (ðâsêmånlholdår)prrone, P70 )
250-6697
Mailing Address 96 Darrow Street, Glenwood Springs, CO 81601
EmailAddress:An na. Smith @blackh il lsenergy. com
Contractor:Willow Creek Companies, LLC - Trent Rogers phone: (970 1778-1165
Mailing Address 743 Horizon Crt, Suite 250, Grand Junction, CO 81506
EmailAddress:Tre ntr@wi I lowcreekcom pa n ies. co m
¡r.¡¡¡".¡' N/A Phone:
Mailing Address
EmailAddress:
n""r. Sean Brown Black Hills Energy pr,on", P03 217-7815
Engi )
Mailing Address: 1769 Park Street, Castle Rock, CO 80109
EmailAddress:Sea n. Brown @blackh i I lse nergy. com
PROJECT NAME AND LOCATION
Project Name .RMNG DeBeque Legoff 8" Pipe line Replacement Project
Describe Work:Replace @2,550 LF of above- and 1 7,290 LF below-grade ex¡sl¡óg 8" transmission p¡peline w¡th 24,684 LF of new 8" steel pipeline in a
new route on 2 privately-owned parcels and on BLM lands. On pr¡vate: 16,790.6 LF on Mahogany and 6,454.5 LF on Laram¡e, 18,500 LF ofwhich w¡ll parallel an
ex¡st¡ng K¡nder-lvlorgan pipeline. The new p¡pel¡ne will be ¡nstalled below grade w¡th the ex¡sting abovê ground p¡pel¡ne removad/recycled and the below grade
p¡pel¡ne abandoned in place. 4 staging areas on 3 private lands are proposed totaling 270,348 sq ft (6.21 ac). Total d¡sturbãnce on private lands: '1,675,9'1 1.2 sqft
Job Address . T65, R98W, Sec 25 & 36; T7S, R97W Sec 6, 7 & B; and T7S, R9BW, Sec 1;
and in T6S, R97W, Sec 29 &30 for disconnect of above ground pipe
Assessorrs Parcel Number:
Sub.
241 10820001 1, 216921 400026, and 216736200023
Lot Block
Earthwork (square tee¡¡: @1'675'911'2 (38'47 ac) Earthwork (cubic Yards):7,008.63
ALL UTILITIE5 MUST BE LOCATED PRIOR TO ANY GRADING
NOTICE
Authorltv. ThisapplicationforaBuildingPermitmustbesignedbytheOwneroftheproperty,describedabove,or
anauthorizedagent. lfthesignaturebelowisnotthatoftheOwner,aseparateletterofauthor¡ty,signedbythe
Owner, must be provided with this Application.
Leeal Access. A Building Permit cannot be issued without proof of lcgal and adequatc acccss to thc propcrty for
purposes of inspections by the Building Division.
Other Permits. Multiple separate permits may be required: (1) State Electrical Permit, (2) County OWTS 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.
VoidPermit. ABuildingPermitbecomesnull andvoidiftheworkauthorizedisnotcommencedwithinl80daysof
the date of issuance and if work is suspended or abandoned for a period of 180 days after commencement.
CERTIFICAT¡ON
I hereby certify that I have read this Application and that the information contained above is true and correct. I
understand that the Building Division accepts the Application, along with the plans and specifications and other
data submitted by me or on my behalf (submittals), based upon my certification as to accuracy. Assuming
completeness of the submittals and approval of this Application, a Building 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 Division. ln consideration of the issuance of the Building Permit, I agree 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, OWTS
regulations and applicable land use regulations (County Regulation(s)). I acknowledge that the Building 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 grant permission to the Building Division to enter the property, described above, to inspect the work. I
further acknowledge that the issuance of the Building Permit does not prevent the Building Official from: (1)
requiring the correction of 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 Division 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 federal, state and local laws and County Regulations
rest with me and my authorized agents, including without limitation my architect designer, engineer and/ or
builder.
I hereby acknowledge that I have read and understand the Notice and Certification above as well as
have provided the required information which is correct and accurate to the best of my knowledge.
,¿lnn¿- St'LrH, 419121
Property Owner Pr¡nt and S¡gn Date
oFFlclAL USE ONLY p¡cc I
Spec¡al Cond¡tionsi¿-. /ì -)>V-î ?ff7vutíÐ \-ó ttDtvaLtS
Permit Fee:
ù{oo1
Misc Fees:Total Fees:
lqo¡',-Fees Paid:l rlao .tt
Balance due
*b
Grading Pcrm¡t:
GßAD . blb\
lssue Date:
+t/¿r lzozl
Zoning:
lL
BUILDING / PLANNING DIVISION ^2a,2
Garfield County
Commun¡ty Development Department
108 8th Street, Suite 401
Glenwood Springs, CO 81601
(e701 94s-8212
wrv w s,¡l llq I d :-Ç a ul1!lLÇg10
TYPE OF GRADING
E MAJCIR
INVOLVED PARTIES
EI MINoR
Property Owner:
Mailing Address:
MalìÒgeny E*ôroy Resourcês ánd Rôc¡(y ÀlouÂìâln Nâlurál Gá3 {oãsêfi6n: hôldêd
96 Darrow Street, Glenwood Springs, CO 81601
Phone: P7o )
250-6697
EmallAddress:Anna.Smith@blackh illsenergy.com
.,::.
Contrðctor . Willow Creek Cornpanies, LLC - Trent Rogers phone:te79-l 778-1165
743 Horizon Crt, Suite 250, Grand Junction, CO 81506Mailing Address:
Ëmail Address:Tre ntr@wi llowcreekcompa ni es. com
Mailing Address:
EmailAddress:
Architect:
Engineer:
N/A Phone: (--l
Sean Brown Black Hills EnergY
1769 Park Street, Castle Rock, CO 80109
Mailing Address:
Sean.Brown@ blackhillscorP.comEmail Address:
PROJECT NAME AND TOCATION
R MNG DeBeq ue Leooff 8" PiPeline ReP lacement Proiect
Project Nam
Describe Work:lì€placs @750 LFabove.ánd @7,62gLF o!bêlow-gradeêxistingS'trarsm¡ssroñÞ¡psllñêw¡lh16.7906LFolnew8"stóålp¡pâlno¡nâ
now rouie an PropertY,all of which will parallel an existing Kinder-Morgan pipeline. One staging area @91,476 sqft (2'10 ac)
in size will be situated in SË Sec 25, T65, R9BW. Existing below grade pipeline will be abandoned in place
Vegetation in staging area will be brush hoggod and a protective barrier laid on surfaee with @6" of gra vel.
T65, Rggw, sec 25 & 36; T7S, R98W, Sec 1; and n T65, Rg7W, sec 30 for disconnect of above grou nd pipe' Job Address
Assessor's Parcel Number 216rc62}0023
Lot _BlockSub
Earthwork (square reet¡: @931 ,206 (21 '38 qc) Earthwork (cubic Yards):4,976
AtL UTITITIES MUST BE LOCATED PRIOR TO ANY GRADING
NOTICE
AuthorlW. this application for a Building Permit must be signed by the Owner of the property, described above, or
an authorized agent. lf the signature below ir not that of the Owner, a separate letter of authority, signed by the
Owner, must be provided with this Application.
LesaL.AçceEi, A Building Permit cannot be issued without proof of le¡¡al and adequate access to the property for
purposes of inspections by the Building Division,
Other Permits. Multiple separate permits may be required: (1) State Electrical Permit, {2) County OWTS Permit,
{3) another permit required for use on the property identified above, e.g. State or County Highway/ Road Access or
a State Wastewater D¡scharge Permit.
Void Permit. A Building 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 o¡ abandoned for a period of 180 days after commencement.
CERTIFICATION
I hereby certify that I have read this Appl¡cation and that the information contained above is true and correct. I
understand that the Building Division accepts the Application, along with the plans and specifications and other
data submitted by me or on my behalf (submittals), based upon my certification as to åccuråcy. Assuming
completeness of the submittals and approval of this Application, a Building Permit will be issued granting
permission to me, as Owner, to construct the structure(s) and facilities detaíled on the submittals reviewed by the
Building Division. lrr consideration of the issuance of the Buìlding Permit, I agree that I and my agents will comply
with provisions of âny federal, stâte or local law regulating the work and the Garfield County Building Code, OWTS
regulations and applicable land use regulations {County Regulation(s)). I acknowledge that the Building Permit
may be suspended or revoked, upon notice from the County, if the location, conskuction or use of the structure{s}
and facility{ies), described above, are not ìn compliance with County Regulation(s} or any other applicable law.
I hereby grant perm¡ssion lo the Building Division to enter the property, described above, to inspect the work. I
further acknowledge thal the issuance of the Building Permit does not prevent the Building official from: (1)
reguiring the correctio¡ of errors in the submittals, if any, discovered after isçuance; or (2) stopping cônstruct¡on
or use oi the structure(s) or facility{ies} if such is ìn violation of County Regulation(s) or âny other applicable law'
Review of this Application, including submittals, and inspections of the work by the Buitding Þivision 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 federal, state and local laws and county Regulations
rest with me and my authorized agents, including without limitation my architect designer, engineer and/ or
builder.
I hereby acknowledge that I have read and understand the Notlce and
have provided the required lnformation is accurate to
A)Ê-t{2 Z
Property Owner Print and Date
Certification above as well as
the best of my knowledge.
OFFICIALUSEONLY pd fr¡6s.oc cc o'(/Òírau
Speclal Conditlons:
|rtoo. a'Feêsfotâl Fees:
$,to o . ocMlsc Fees:Permit Fee:
Ìoo . a-¡
Èu
Zoning:lssue Þêtei
èT /ô3
Grading Permiti
bÊ.sø- - 6
Balance duelt.ü
BU|LOING / PLANNING DIVISION :
Signed ApProval Date
Gørfield County
Community Development Department
108 8th Street, Suite 401
Glenwood Springs, CO 81601
ls7ol94s-82t2
www. ga rfiel d-cou nW.com
TYPE OF GRADING
tr MINORtr MAJOR
INVOTVED PARTIES
property Owner: JoJo Properties and Rocky Mountain Natural Gas (easement holder) phone: P70 )
250-6697
Mailing Address:96 Darrow Street, Glenwood Springs, CO 81601
EmailAddress:An na.Smith@blackhillsenergy.com
Contractor:Willow Creek Companies, LLC - Trent Rogers phone: (970 1778-1165
Mailing Address:743 Horizon Crt, Suite 250, Grand Junction, CO 81506
EmailAddress:Trentr@wi I lowcreekcom pa n ies. com
erch¡tect: N/A Phone
Mailing Address:
EmailAddress:
. Sean Brown Black Hills Energy plron"' Ê03 217-7815
Engineer I
Mailing Address:1769 Park Street, Castle Rock, CO 80109
EmailAddress . Sean. Brown@blackhillscorp.com
PROJECT NAME AND LOCATION
Project Name .RMNG DeBeque Legoff 8" Pipe line Replacement Project
Describe Work:Utilize approximately 62,305 sqft (1.43 acres) as a staging area in an already improved pasture on property.
Access to staging area ¡s via an existing well pad access drive connected to CR 21 3 with staging area situated on SW corner of access drive
and CR 213 (see attached map). A protective barrier will be laid on the surface of staging area with a covering of @6" of gravel
covering the barrier. Once removed, any surface disturbance will be reclaimed in accordance with SWMP/Rec Plan
Job Address:T7S, R97W - SENW Sec 5
Assesso/s Parcel Number:
Sub.
241108200011
Lot Block
Earthwork (square feet)@62,305 (1.43 ac)Earthwork (Cubic Yards) :None
ALL UTILITIES MUST BE LOCATED PRIOR TO ANY GRADING
NOTICE
Authoritv. ThisapplicationforaBuildingPermitmustbesignedbytheOwneroftheproperty,dcscribedabove,or
an authorized agent. lf the signature below is not that of the Owner, a separate letter of authority, signed by the
Owner, must be provided with this Application.
Legal Access. A Building Permit cannot be issued without proof of legal and adequate access to the property for
purposes of inspections by the tsuilding Division.
Other Permits. Multiple separate permits may be required: (1) State Electrical Permit, (2) County OWTS 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.
VoidPermit' ABuildingPermitbecomesnull andvoidiftheworkauthorizedisnotcommencedwithinl80daysof
the date of issuance and if work is suspended or abandoned for a period of 180 days after commencement.
CERT¡FICATION
I hereby certify that I have read this Application and that the information contained above is true and correct. I
utrderstand that the Building Division accepts the Application, along with the plans and specifications and other
data submitted by me or on my behalf (submittals), based upon my certification as to accuracy. Assuming
completeness of the submittals and approval of this Application, a Building 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 Division. ln consideration of the issuance of the Building Permit, I agree 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, OWTS
regulations and applicable land use regulations (County Regulation(s)). I acknowledge that the Building Permit
may be suspended or revoked, upon notice from the County, ifthe location, construction or use ofthe structure(s)
and facility(ies), described above, are not In compliance with County Regulation(s) or any other applicable law.
I hereby grant permission to the Buildirrg Division to enter Lhe property, described above, to inspect the work. I
further acknowledge that the issuance of the Building Permit does not prevent the Building Official from: (1)
requiring the correction of errors in the submittals, if any, discovered after issuance; or (2) stopping construction
or use of the structure(s) orfacility(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 Division do not
const¡tute an acceptance of responsibility or liability by the County of errors, omissions or discrepancies. As the
Owner, I acknowledge that responsibility for compliance with federal, state and local laws and County Regulations
rest with me and my authorized agents, including without limitation my architect designer, engineer and/ or
builder.
I hereby acknowledge that I have read and understand the Notice and Cert¡f¡cation above as well as
have provided the required information which is correct and accurate to the best of my knowledge.
Property Owner Print and Sign Date
OFF|C|AL UsE oNty pe $ 4oo.@ cc o1/ts/to tt
Special Conditions:
Permit Fee:
* Too. tl Misc Fees:Total Fees:t rtaq:r Fees Paid:
$ ¡la.>. Êo
Balance due:
4rd
Grading Permit:
øÈAe- c8 0t
lssue Däte:
t*l /z-t/¿o¿t
Zoning:
tel_
BUtLDtNG / PLANNTNG DtVtStON
Signed Approval Date
Gørfield County
Community Development Department
108 8th Street, Suite 401
Glenwood Springs, CO 81601
ls7ol94s-82L2
www.garfi eld-cou nw.com
TYPE OF GRADING
tr MAJOR tr MINOR
INVOLVED PARTIES
pfOpefty OWnef : Laramie LLC and Rocky Mountain Natural Gas (easement holder)plrone, P70 )250-6697
Mailing Address: 96 Darrow Street, Glenwood Springs, CO 81601
Emait Addre.r. An na. Smith @blackh il lsenergy.com
contractor: Willow Creek Companies, LLC - Trent Rogers phone:(970 )
778-1165
Mailing Address:T43Horizon Crt, Suite 250, Grand Junction, CO 81506
EmailAddress:Trentr@wi I lowcreekcom pan ies. com
Architect:N/A Phone: ()
Mailing Address:
EmailAddress:
. Sean Brown Black Hills Energy plron"'P03 217-7815Engineer
Mailing Address: 1769 Park Street, Castle Rock, CO 80109
Emait Addrerr. Sean. Brown @blackh i I lscorp. com
PROJECT NAME AND LOCAT¡ON
Project Na RMNG DeBeque Legoff 8" Pipeline Replacement Project
DgSCfibgWOfk: Replace@1,800LFabove-and@5,100LFofbelow-gradeexistingS"pipelinew¡th6,454.5LFofnew8"steel pipelineinaneweasement
route on property. Two staging areas 65,253 sqft (1.498 ac) and 51,314 sqft (1.178 ac) in size will be s¡tuated ¡n NW Sec 7, T7S, R97W. Ex¡st¡ng vegetâtion ¡n staging
areas will be brush hogged and a protective barr¡er laid on surface and covered with @6" of gravel. Regrading of @9,583.2 sqft in 5/T6S/R97W needed
for access onto existing 2-track drive. Existing above ground pipe will be removed while existing below ground pipe will be abandoned in place.
Job Address:T7S, R97W - Sec 6 & 7; T65, R97W, Sec 29 &30 for disconnect of existing above ground pipe,
and T65, R97W - SWSW Sec 5
Assessor's Parcet Number: 216921400026
Sub.Lot _Block
Earthwork (square feetl @682,400.2 (15.67 ac)Earthwork (Cubic Yards) :2,032.63
ALL UTILITIES MUST BE LOCATED PRIOR TO ANY GRADING
NOTICE
Authoritv. ThisapplicationforaBuildingPermitmustbeslgnedbytheOwneroftheproperty,describedabove,or
anauthorizedagent. lftheslgnaturebelowisnotthatoftheOwner,aseparateletterofauthority,signedbythe
Owner, must be provided with this Application.
Legal Access. A Building Permit cannot be issued without proof of legal and adequate access to the property for
purposes of inspections by the Building I-livision.
Other Permits. Multiple separate permits may be required: (1) State Electrical Permit, (2) County OWTS 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 Permit. A Building 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 L80 days after commencement.
CERT¡FICATION
I hereby certify that I have read this Application and that the information contained above is true and correct. I
understatrd that the Building Division accepts the Application, along with the plans and specifications and other
data submitted by me or on my behalf (submittals), based upon my certification as to accuracy. Assuming
completeness of the submittals and approval of this Application, a Building 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 Division. ln consideration of the issuance of the Building Permit, I agree 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, OWTS
regulations and applicable land use regulations (County Regulation(s)). I acknowledge that the Building 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 grant permission to the Building Division to enter the property, described above, to inspect the work. I
further acknowledge that the issuance of the Building Permit does not prevent the Building Official from: (1)
requiring the correction of 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 Division 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 federal, state and local laws and County Regulations
rest with me and my authorized agents, including without limitation my architect designer, engineer and/ or
builder.
I hereby acknowledge that I have read and understand the Notice and Certification above as well as
have provided the required information which is correct and accurate to the best of my knowledge.
Property Owner Print and Sign Date
OFFtCtAt USE ONLY ?.t . *,(oO.d cc o\ f ø/zozt
Special Conditions:
Permit Fee
$rtoo,ôD
Misc Fees Total Fees:
4,{ oo.Þo
Fees Paid;t 4oo. o,
Balance due:
ç./
Grading Permit:
GPAÞ -69 ô?
lssue Dâte:
o{/¡r l"ozt
Zoning
t?.r-
BUITDING / PLANNING DIVISION
Signed Approval Date
CONDITIONS TO ALL PIPELINE GRADING AND INSTALLATION PERMITS
FOR GARFIELD COUNTY
L. All work to comply with ASME 83L.8-2OO7 and manufacturers recommendations for steel
pipelines.
2. Allwork to comply with ASTM D2774 for pressure poly pipe installations and ASTM D2321.1or
gravity flow poly pipe installations. Follow all manufacture's recommendations.
3. Minimum cover over all installations is 48 inches.
4. Properly compacted backfill is required between parallel pipes in a common trench. Provide
adequate space between the pipes to achieve adequate compaction.
5. The trench bottom should have stable (firm)soils and free of protruding rocks. A minimum of 4
inches of Class I bedding is required under poly pipe.
6. Compaction requirements are 85% standard Proctor for Class I and Class ll backfill (including
padding), 90% standard Proctor for Class lll backfill, and g5% standard Proctor for Class IVA soils
and for all backfill under and within 6 feet of roads. Maximum lifts of 12-inches for Class l, 8-
inches for Class ll, and 6-inches for all other classes. Compaction test are required every 200
feet until compaction practices meet these requirement. Compaction once established must be
spot checked every 400 ft. or when fill materials or processes changes.
7. Padding (shading) of all pipes is required a minimum of 24-inches around the pipe with 12-
inches of padding over the pipe. Padding particle size of no greater than 1 L/2 -inch for a 10-
inch to l5-inch diameter pipe. lf the pipe is 16-inches or larger, the 2 inch maximum particle is
allowed.
lnspection Reports shall be completed to verify the above specifications. ln addition the reports shall
show:
¡ Name of the inspector, date, time on site, and weather;
¡ A description of the work in progress;
o Summary of conversations with contractors/others;
¡ Summary of sampling and testing activities;
o Verification of pipe material, grade and alignment;
¡ Observation of pipe installation, placement of padding and backfill materials, and trench
excavation methods;
o Verification of proper pipe storage, handling, and installation procedures are followed;
o Copies of all pressure integrity, non destructive X-Ray and compaction test; and
¡ Pictures to document the construction.
Stormwater management plans require routine inspections during all phases of work every 14 days and
after a precipitation-related event.
Andy Schwaller
From:
Sent:
To:
Cc:
Subject:
Smith, Anna <Anna.Smith@blackhillscorp.com >
Tuesday, April 20, 2021 10:41 AM
Andy Schwaller
Steve Anthony
RE: [External] Grading Permit
So, yesterday in talking with Cliff, he thought we'd not included BLM disturbance in the calculation for the bond. I just
did a quick math check on the calculator and he is correct so the bond amount is just for the 38.47 acres of disturbance
on private property. Sorry for the confusion!
Anna Smith
Utility Construction Planner - RMNG I Atack Hills Energy
Anna.Smith@blackhillscorp.com I Cell: ISZO¡ 250-6697
From: Andy Schwa ller <aschwa ller@garfield-county.com>
Sent: Tuesday, April 20,2O2L 1-0:33 AM
To: Smith, Anna <Anna.Smith @ blackhillscorp.com>
Cc: Steve Anthony <santhony@garfield-county.com>
Subject: FW: Grading Permit
'i"i' EXTERNAL EMAIL. ls this an expected email? STOP and THINK before clicking links or opening
achments. *
Anna,
See Steve's email below. lt might be easier to deal with the bond amount now rather than chase out in the future
should the question come up depending on the difference in the two values.
Andy
From: Steve Anthony <santhonv@garf¡eld-countv.com>
Sent: Tuesday, April 20,zOZt 8:45 AM
To: Andy Schwaller <aschwaller@garfield-countv.com>
Subject: RE: Grading Permit
Andy,
The Reclamation, Revegetation, and Noxious Weed Plan is acceptable.
I am not able to figure out the exact amount of disturbed land that is on BLM, however as I mentioned on Friday, I would
encourage you to ask Black Hills to redo the bond and subtract out the BLM portion as that is not our jurisdiction.
lf we accept this bond, with the BLM disturbance calculated in, we will have to go before the BOCC at some point and
correct it...it is easier for all of us, to not accept this bond with the application and get the BLM portion removed...so it
will be a smaller amount.
1
Thanks
Steve
From: Andy Schwaller <aschwaller@garfield-countv.com>
Sent: Friday, April 16,2O2L 8:46 AM
To: Steve Anthony <sa nthonv@ga rfield-countv.com>
Subject: Grading Permit
Hi Steve,
Please see attached. I did see a weed survey and a bond for 596,175.00 is included with the application. Reveg area is
found in the really fine print of the Combined Application. I did ask Anne to verify.
Thanks,
Andy
This electronic message transmission contains information from Black H¡lls Corporation, its affiliate or subsidiary, which may be confidential or privileged. The
informaiion is lntended to be for the use of the individual or ent¡ty named above. lf you are not the intended recipient, be aware the disclosure, copying, distribution
or use of the contents of this ¡nformat¡on is prohibited. lf you received this electronic transmission in error, please reply to sender immediately; then delete th¡s
message without copy¡ng it or further reading.
2
Blad( ,lilß Energy
Ready
Sean Brown, P.E.
Gas Engineer
Sean. Brown@blackhillscorp.com
1769 Park St
Castle Rock, CO 80109
P:720-284-2796
January 22,2021
Andy Schwaller
Garfield County
108 8th Street, Suite 401
Glenwood Springs, CO 81601
Dear Mr. Schwaller:
Rocky Mountain Natural Gas, LLC, doing business as Black Hills Energy, is submitting
the attached grading permit application for our DeBeque Legoff project, located
approximately 12 miles north of the town of DeBeque, Colorado. Currently there is
approximately 3,500 feet of 8" steel gas l¡ne installed above grade on a steep slope.
The purpose of this project is to install a new gas transmission line below grade to
replace the exposed pipe and to remove the existing above grade pipe for disposal.
The Maximum Allowable Operating Pressure (MAOP) for the DeBeque Legoff project is
based on CFR 49, Part 192 and Black Hills O&M Manual. The current MAOP of the
existing pipeline is 1,290 PSIG.
Equation 't ' P=(2SI/DXEXTXF)
. Pipe Material: Steel, ERW API 5L PSL2, Grade X52
Abrasion Resistant Overcoat (ARO) will be installed on steep slope: Fusion Bonded
Epoxy (FBE) will be used on the rest of the alignment
. Specified Minimum Yield Strength (SMYS) (S)= 52,000 PSI
o Outside Diameter (D)=8.62S inches. Wall Thickness (t) = 0.322 inches. Location Class = 3. All proposed Black Hills pipelines are designed for class 3
locations.. Design Factor (F) = 0.S for class 3 locations
o Temperature Derating Factor (T) = 1. Gas Temperature does not exceed 250" F
. Longitudinal Joint Factor (E) = t for ERW API 5L pipe
Solving for equation 1 , P=l(2)(52,000)(.322)ll(8.625x.5)(1X1) = 1941.3 PSIG
Equation 2: Percent of Operating SMYS = MAOP/ ((2XSXtyD)
www. blackhillsenergy-com
Solving for equation 2, %SMYS=1 29Ol((2X52,000X0.322)/8.625))=33.2o/o
All steelfittings will have aY-52 class grade rating to match the pipe grade. There will
be no above ground facilities installed with this project.
All surface grading will be returned to the original elevations along the pipeline ROW as
the trenches are backfilled and the surface is restored.
Sincerely,
Sean Brown, PE
a/tt/t\
www.blackhillsenergy.com
ROCKY MOUNTAIN NATURAL GAS, LLC
DEBEQUE LEGOFF PIPELINE REPLACEMENT PROJECT
RECLAMATION, REVEGETATION AND NOXIOUS WEED MANAGEMENT PLAN
GARFIELD COUNTY LAND USE AND DEVELOPMENT CODE 2013
Cover photo: View of the proposed pipeline alignment.
Prepared for:
Black Hills Energy
Denver, CO
Prepared by:
WestWater Engineering, Inc.
2516 Foresight Cr. #1
Grand Junction, CO 81505
fr*rtur
Amie Wilsey, Environmental ScientislProject Manager
luly 2020
1.0 INTRODTICTION
1.1 Project Description
At the request of Rocky Mountain Natural Gas, LLC (RMNG), doing business as Black Hills Energy
(Black Hills), Westwater Engineering (WestWater) has prepared this reclamation, revegetation, and
noxious weed management plan for the proposed DeBeque Legoff Pipeline Replacement project that
would be located on privately owned and federally managed lands in Garfield County, Colorado. This
document reports the results and analysis of the findings that are pertinent to Section 9-102-M of the
Garfield County Land Use and Development Code (as amended) as it applies to this project.
RMNG proposes to replace an existing portion of their pipeline that is a surface line in Sections 19,29,
30, and 32, Township 6 South, Range 97 West, and Section 25, Township 6 South, Range 98 V/est and
install a new segment of pipeline in Sections 6,7, and 8, Township 7 South, Range 97 West; and Section
1, Township 7 South, Range 98 West (Figure l). This reclamation, revegetation and noxious weed
management plan applies to five altemative alignments that are under consideration at this time. The
eastern end of each alignment crosses federal surface managed by the Bureau of Land Management
(BLM) Grand Junction Field Office (GJFO) for approximately 0.25 to 0.5 mile. The current land uses
include rangeland, wildlife habitat, and oil and gas development.
1.2 General Survey Information
Pedestrian surveys of the project area were conducted by V/estWater biologists on June 24,2020 within
30 meters of the pipeline centerline for each of the proposed reroute altematives (Figure l). Surveys were
conducted within the growing season for noxious weeds. Identification of plant species was aided by
using pertinent published field guides (Ackerfield 2015, Kershaw et al. 1998, Whitson et al. 2001,
CWM^ 2007, Weber and Wittmann2}l2). Noxious wccd locations \¡/crc rccordcd with thc aid of
handheld global positioning system (GPS) receivers using NAD83 map datum, with all coordinate
locations based on the Universal Transverse Mercator (UTM) coordinate system inZone 12. Mapped soil
types, as published by the Natural Resources Conservation Service (NRCS), U.S. Department of
Agriculture (USDA), wcrc rcvicwcd to determine the soil types and vegetation characteristics at the
project site (NRCS 2019).
2.0 LANDSCAPE SETTING
2.l Terrain
The proposed pipeline re-route alternatives all descend from the top of Long Point to the Conn Creek
Valley Floor where the pipeline would tie in with the existing buried pipeline in Section 8, Township 7
South, Range 97 West. Approximately 1.5 miles of the alignment is common to all alternative routes and
would be located on top of the Roan Plateau along gently rolling hills. The five alternative routes from
Long Point to the bottom of Conn Creek all follow very steep alignments down the slopes of the Roan
Plateau.
2.2 Soils
Soils in the survey areavary and are generally derived from on-site sandstone and shale (Table 1)
(Natural Resources Conservation Service [NRCS] 2020).
WestWater Engineering Page I of 15 Iuly 2020
Table 1. Soils found in the project area.
2.3 Vegetation
There are four main vegetation community types present in the project area: oakbrush shrublands,
mountain shrublands, sagebrush shrublands, and pinyon-juniper woodlands. The oakbrush shrublands are
composed primarily of Gambel oak(Quercus gambelii) with an understory of native grasses and forbs
and occupy the top of the Roan Plateau. Also, on top of the plateau, the mountain shrublands are
composed primarily of Saskatoon serviceberry (Amelanchier alnifolìa) intermixed with mountain
snowberry (Symphoricarpos oreophilus), Gambel oak (Quercus gambelii), and Wyoming big sagebrush
(Artemisia tridentata ssp. wyomingensrs). Sparse sagebrush shrublands and widely spaced pinyon-juniper
woodlands occupy the steep slopes descending from Long Point and are composed primarily of Wyoming
sagebrush and Utah juniper intermixed with mountain snowbeny, scattered shadscale saltbush, and native
perennial grasses and forbs. Along the valley bottom of Conn Creek, the pipeline alignment alternatives
are surrounded by Basin big sagebrush shrublands intermixed with greasewood. Common plants observed
throughout the project areaare described in Table 2.
Table 2. Common plants observed throughout the project area.
Map
Unit
Symbol
Soil Series Description
7
Biedsaw-Sunup gravelly loams, 10
to 40 percent slopes
Not prime farmland. This soil type is well drained
with a very high runoff class, and typically occurs
along mountains and ridges.
44
Happle very channery sandy loam, 3
to l2 percent slopes
Not prime farmland. This soil type is well drained
with a medium runoff class, and occurs along
alluvial fans.
46
Happle-Rock outcrop association, 25
to 65 percent slopes
Not prime farmland. This soil type is well drained
with a high runoffclass, and occurs along canyons
and mountains.
55
Parachute-Irigul complex, 5 to 30
percent slopes
Not prime farmland. This soil type is well drained
with a high runoff class, and occurs on mountains.
56
Parachute-lrigul-Rhone association,
25 to 50 percent slopes
Not prime farmland. This soil type is well drained
with a high runoff class, and occurs on mountains.
Common Name ScientÍfic Nøme Abundance*Ilabitat Type
Grasses
Bluebunch wheatgrass P s eudoroe gneria spicat a XX
Reclaimed/disturbed area,
sagebrush shrublands
Bottlebrush
squirreltail
Elymus elymoides XX Sagebrush shrublands
Cheatgrass Bromus tectotum xx Reclaimed/disturbed area,
sagebrush shrublands
Crested wheatgrass Agropyron cristatum xx Reclaimed/disturbed area
WestWater Engineering Page2ofl5 July 2020
Common Nnme Scientlfic Nome Abundance*Habitat Type
Indian ricegrass Achnatlterutt
hymenoides XXX Reclaimedidisturbed area, sagebrush
Intermediate
wheatgrass
Thinopyrum
intermedium x Reclaimed/disturbed area
James'Galleta Pleuraphis jamesii X Sagebrush shrublands
Sandberg bluegrass Poa secunda XXX Sagebrush shrubland
Smooth brome Bromus inermis xx Reclaimed/disturbed area,
sagebrush shrublands,
Forbs
American vetch Vicia americqna XX Sagebrush shrubland
Brittle pricklypear Opuntia frasilis XX Sagebrush shrubland
Cicer milkvetch Astragalus cicer X
Reclaimed/disturbed area, sagebrush
shrubland
Common dandelion Taraxacum officinale X Sagebrush shrubland
Common yarrow Achìllea milleþlium XX
Reclaimed/disturbcd arca, sagebrush
shrubland
Crispleaf buckwheat Eriogonum corymbosum X Reclaimed/disturbed area
Desert madwort Alyssum desertortum XX
Reclaimed/disturbed area sagebrush
shrubland
European stickseed Lappula squarrosa xx Reclaimed/disturbed a rea,
sagebrush shrublands
Hairy goldenaster Heterotheca villosa XX
Reclaimed/disturbed area,
sagebrush shrublands
I Ioary tansyaster Machaeranthera
canescens XX
Reclaimed/disturbed area, sagebrush
shrubland
Plains pricklypear Opuntia polyacantha X Sagebrush shrubland
Prickly Russian
thistle Salsolu tragus xx Reclaimed/disturbed area
Rayless tansyaster Machaeranthera
grindelioides XX
Reclaimed/disturbed area, sagebrush
shrublands
Scarlet Globemallow Sphaeralcea coccinea X
Reclaimed/disturbed area, sagebrush
shrubland
Small
tumblemustard Sisymbrium loeselll xx Reclaimed/disturbed area
Spiny phlox Phlox hoodii XXX Sagebrush shrubland
Tall tumblemustard Sisymbrium altissimum
C as t i I lej a linari ìfol i a
xx
X
Reclaimed/disturbed area
Sagebrush shrubland
Wyoming Indian
paintbrush
Yellow salsify Tragopogon dubius X Reclaimed/disturbed area
Shrubs/'l'rees
Basin big sagebrush Artems ia tridentat a ssp.
tridentata XXX Sagebrush shrubland
WcstWater Engineering Page 3 of15 Iuly 2020
Common Name Scíentíftc Name Abundance*Habitat Type
Broom snakeweed Gutierrezia sarothrae X
Reclaimed/disturbed area,
pinyon/iuniper woodland
Four-wing saltbush Atriplex canescens X Reclaimed/disturbed area
Greasewood Sarcobatus vermículqtus XXX Sagebrush shrubland
Mormon tea Ephedra viridis XX Pinyon/j uniper woodlands
Mountain mahogany Cercocarpus montanus XX Pinyon/j uniper woodlands
Pinyon pine Pinus edulis XX Pinyon/j uniper woodlands
Rubber rabbitbrush Ericameria nauseosa XX
Reclaimed/disturbed area, sagebrush
shrubland
Shadscale saltbush A t r ip I e x c o nfer t ifo I i a XX Sagebrush shrubland
Utah juniper Juniperus osteosperma XX Pinyon/i uniper woodlands
Utah serviceberry Amelanchier utahensis XXX Pinyon/l uniper woodlands
Wyoming sagebrush
Artemis a tridentaÍ a ssp.
wyomingensis
XXX Sagebrush shrubland
Yellow rabbitbrush Chrysothamnus
viscidflorus XX Sagebrush shrubland
* x: uncommon in project area.
xx: moderate frequency throughout project area.
xxx: common frequency throughout project area.
Bold = Non-native species
3.0 REVEGETATION, RECLAMATION, & SOILS RECOMMENDATIONS
Successful reclamation ofthe project area is dependent upon soil type and texture, slope gradient and
aspect, proper weed control, available water, and revegetation with suitable plant species. Site-specific
reclamation plans utilizing native species should be developed with a qualified reclamation contractor.
Reclamation services using multiple seed bin range drills and specialized equipment are available and
should be used for reclamation seeding projects.
3.1 Soil Preparation
Compaction can reduce water infiltration and also hinder the penetration of the sprouting seed. Practices
that will reduce compaction and prepare the seedbed include: scarification, tillage, or harrowing.
In areas with slope greater than three percent or where laminar flows from runoff could affect reseeding
success, 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 simplest 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 ofslope.
3.2 Soil Amendments
The addition of soil amendments in rangeland reclamation projects can create more optimal growing
conditions for non-native or invasive plant species, with which native plants compete poorly. There is
WestWater Engineering Page4ofl5 Iuly 2020
potentialthat the t¡se of soil amendments (fertilizer) containing nitrogen will disproportionately benefit
trnclesirable annual plants (Perry et al.20l0). If the company determines the use of soil amendments to be
bcneficial, the type and rate should be based on results from lab analysis of soil samples collected at the
site.
A potentially beneficial alternative method to enhance reclamation success, particularly where there is
poor or destroyed topsoil, is the application of vesicular-arbuscular mycorrhizal fungi (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 can increase water and nutrient transfer capacity of the host root system (Barrow and
McCaslin 1995). Over-the-counter commercial products are available, and the best products should
contain more than one fungus species.
Compacted soils respond well to fossilized humic substances and by-products called humates. These
humates, including humic and fulvic acids and humin were formed from pre-historic plant and animal
deposits and can benefit reclamation efforts on compacted soils when applied as directed.
3.3 Seed Mixture
The alternative alignments traverse three separate vegetation communities throughout the range of
elevations from the top of the Roan Plateau to the Conn Creek valley floor. The recommended seed mixes
below (Tables 3 and 4) are adapted from the Bureau of Land Management's Colorado River Valley Field
Office seed menu recommendations (BLM 2013). The seed mixes are well suited for the vegetation
communities present along the alternative alignments. The mixes include perennial native grasses and
forbs that shoulcl establish well, protect topsoil, and provide a basis fbr rehabilitation of the site upon
reclamation. Portions of the project area that are privately owned may be subject to landowner-requested
modifications to the seed mixture.
Table 3. Recommended seed menu for mixecl mountain shrubla tnc oakbrush.
Common Name Scientific Name Varietv Season Form
PLS
lbs/acre*
Plant Both of the Following (20o/o Each, 40Vo T otall
Bottlebrush
Squineltail
Elymus elymoides,
Sitanion hystrix VNS Cool Bunch 2.7
Bluebunch
Wheatgrass
Pseudoroegneria
spicata, Agropyron
spicatum
Secar, P-7,
Anatone,
Goldar
Cool Bunch t. t
and Two of the Following (157o Each,307o Total)
Thickspike
V/heatgrass
Elymus lanc eolatus ssp.
I anc e ol atus, A gr opyr on
dasystachyum
Critana,
Bannock,
Schwendimar
Cool Sod
forming 2.5
Slender Wheatgrass
Elymus trachycaulus,
Agropyron
trachycaulum
San Luis Cool Bunch 2.5
Western
Wheatgrass
Pascopyrum
fAsropvronl smithii
Arriba,
Rosana Cool Sod-
forming 3.6
and One of the Following (10% Total)
Big Bluegrass Poa ampla Sherman Cool Bunch 0.3
Canby Bluegrass Poa conhtti, P. secunda Bunch 0.3
Muttotrgrass Poa fendleriana
Canbar
\TNS
Cool
Cool Bunch 0.3
and One of the li'ollowing (10% Total)
WestWater Engineering Page 5 of l5 IuIy 2020
Table 3. Recommended seed menu for mixed mountain shru oakbrush.
*Based on 60 pure live seeds (PLS) per square foot, drill-seeded. Double this rate (120 PLS per
square foot) if broadcast or hydroseeded
For best results and success, reseeding should be done in late autumn. The seed application rate should be
doubled for broadcast applications such as hydroseeding or hand broadcasting ofseed (CNHP 1998).
Tabte 4. Recommended seed mix for Pinyon-Juniper Woodland and/or
MountainÄil Sa brush Shrubland
Season Form
PLS
lbs/acre*Common Name Scientific Name Varietv
\TNS Cool Bunch 1.7Letterman
Needlegrass
Achnatherum [StipaJ
lettermanii
Cool Bunch 1.7Columbia
Needlegrass
Achnatherum [StipaJ
nelsonii, Stipa
columhiana
VNS
Lodorm,
Cucharas Cool Bunch 1.4Green Needlegrass Nassella [StipaJ
viridula
and One of the Followins (10% Total)
Cool Bunch 1.9Indian Ricegrass
Achnatherum
[OryzopsßJ
hymenoides
Nezpar,
Paloma,
Rimrock
Koeleria macrantha, K.
cristala
VNS (North
American
oriein)
Cool Bunch 0.1Junegrass
OPTIONAL: Any combination from the following species may be substituted for up to 107o of the
above qrasses.
Silvery Lupine Lupinus arpenteus VNS
VNSArrowleaf
Balsamroot Bals amorhize s agitt at a
VNSSulfur Flower Erioponum umbellatum
Yarrow Achillea millifolium VNS
VNSUtah Sweetvetch Hedysarum boreale
Cleome serrulata VNSRocky Mountain
Beeplant
VNSUtah Serviceberry Amelanchior utahensis
Symphoricarpus
oreophilus VNSMountain
Snowberry
Rosa woodsii VNS'Wood's Rose
VNSWhite Sage Artemisia ludoviciana
Variety Season Form
PLS
lbs/acre*Common Name Scientific Name
Plant Both of the Following (15"/" Each, 307o Total)
VNS Cool Bunch 2.0Bottlebrush
Squirreltail
Elymus elymoides,
Sìtanion hystrix
Cool Bunch 2.8Bluebunch
Wheatgrass
Pseudoroegneria
spicata, Agropyron
spicatum
Secar, P-7,
Anatone,
Goldar
and Two of the Following(20'/" Each, 40"/" Total)
WestWater Engineering Page6ofl5 Iuly 2020
Tahle 4, Recommended seed mix for Pinyon-Juniper Woodland and/or
Shrubland
*Bascd on 60 purc livc sccds (PLS) per square foot, drill-seeded. Double this rate (120 PLS per
square foot) if broadcast or hydroseeded
For best results and success, reseeding should be done in late autumn. The seed application rate should be
doubled for broadcast applications such as hydroseeding or hand broadcasting ofseed (CNHP 1998).
Seeding Methods
Typically, the preferred seeding methocl woulcl bc with a multiplc-sccd-bin range drill with no soil
preparation other than simple grading to slope and imprinting and water bars where applicable. 'l'his
method would likely be the most economical method. Hydroseeding or hand-broadcast seeding at twice
the recommended drill seed rate will be required for steep slopes or for smaller areas where drill seerting
would be impractical or dangerous.
Common Name Scientifïc Name Variety Season Form
PLS
lbs/acre*
Thickspike
Wheatgrass
Elymus lanceolatus ssp.
I anc eolat us, Agropyron
dasystachyum
Critana,
Bannock,
Schwendimar
Cool Sod-
forming 3.4
Slender Wheatgrass
Elymus trachycaulus,
Agropyron
trachycaulum
Revenue,
Pryor Cool Bunch 3.3
Western Wheatgrass Pascopyrum
fAxropvronl smithìi
Rosana,
Aniba Cool Sod-
forming 4.8
and Three of the Following (10% Each,30%o Total)
Indian Ricegrass
Achnatherum
[Oryzopsß]
hymenoides
Paloma,
Rimrock Cool Bunch 1.9
Arizona Fescue Festuca arìzonica Redondo Cool Bunch 0.5
Galleta Pleuraphis [HilariaJ
jamesii Viva florcts Warm Bunch/Sod
-forming 1.7
Muttongrass Poa fendleriana VNS Cool Bunch 0.3
Sandberg Bluegrass Poa sandbergii, Poa
secunda \rNS Cool Bunch 0.3
Sand Dropseed Sporobolus
cryptandrus \TNS Warrn Bunch 0.1
OPTIONAL: Any combination from the following species may be substituted for up to 107o of the
above grâsses.
Rocky Mountain
Beeplant Cleome serrulata VNS
Annual Sunflower Helianthus lnnuus \.TNS
Arrowleaf
Balsamroot B als amorhiza s agittata \TNS
Sulfur Flower Eriosonum umbellatum \fNS
Utah sweetvetch Hedvsarum boreale \TNS
Scarlet
Globernallow Sphaeralcea coccinea \TNS
Four-Wing Saltbush Atriplex canescens \¡NS
White Sagebrush Artemisia ludoviciana \¡NS
WestWater Errgineering PageTofl5 Iuly 2020
Alternative seeding methods include, but are not limited to
harrow with just enough soil moisture to create a rough surface, broadcast seed and re-harrow,
preferably at a90 degree angle to the first harrow;
a
o hydroseeding; and
. hand raking and broadcast followed by re-raking at a90 degree angle to the first raking.
These are not the only means of replanting the site. However, these methods have been observed to be
effective in similar landscapes. After desired grasses are established and control of target weed species is
successful, then shrubs, forbs, and trees can be planted without concern for herbicide damage. Few native
forb seeds are available commercially as cultivars. Most are collected from natural populations. Native
shrubs and forbs often do not establish well from seed, particularly when mixed with grasses. Past
experience has shown that stabilizing the soil with grasses, accomplishing weed control, and then coming
back to plant live, containerized woody species in copses has been the most cost-effective method for
establishing the woody species component of the plant community.
For sites where soil disturbance will be temporary, grasses should be seeded after construction activities
cease and the equipment is removed from the site. After two years of controlling weeds (with herbicides)
and allowing the grasses to become established, forbs and woody species should be inter-seeded or hand-
planted to increase the diversity and value of the reclamation plantings.
3.4 Mulching
Crimped straw mulch is the most cost effective and practical method of mulching areas prone to erosion
after drill seeding this site. No mulching is recommended for areas that are hydroseeded. Potential
detrimental effects of mulching include the introduction of weed species and the establishment of non-
native cereal grains. Use of a certified weed-free sterile wheat hybrid straw mulch would limit these
effects. On steeper slopes where crimping is impractical, wood straw mulch would be an alternative to
crimped straw mulch that might stand up better to wind and rain that could blow or wash uncrimped straw
mulch off of seeded areas.
3.5 BMPs
Excelsior wattles or straw bales at the toe ofsteep slopes and water discharge points are appropriate to
help control water velocity flowing off the alignment during storms and spring runoff. Terracing slopes
near or exceeding 3:1 will reduce erosion, benefitting topsoil and seed retention and thereby improving
revegetation success.
4.0 NOXIOUSWEEDS
4.1 Introduction to Noxious Weeds
Most noxious weed species in Colorado were introduced, mostly from Eurasia, either unintentionally or
as ornamentals that established wild populations. These plants compete aggressively with native
vegetation and tend to spread quickly because the environmental factors that normally control them are
absent. Disturbed soils, altered native vegetation communities, and areas with increased soil moisture
often create prime conditions for weed infestations. The primary vectors that spread noxious weeds
include humans, animals, water, and wind.
The Colorado Noxious Weed Act (State of Colorado 2005) requires local governing bodies to develop
noxious weed management plans. Both the State of Colorado and Garfield County maintain a list of
WestWater Engineering Page I of l5 IuIy 2020
plants that are consiclereclto be noxious weeds (Garfielcl County 2019). The State of Colorado noxior.rs
weed list segregates noxious weed species based on priority for control:
1. List A species must be eradicated whenever detected.
2. List B species spread should be halted; may be designated for eradication in some counties.
3. List C species are widespread and the State will assist local jurisdictions which choose to manage
those weeds.
The Garfield County Weed Advisory Board has compiled a list of 40 plants considered to be noxious
weeds within the county (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 (Garfield County 2016).
4.2 Observations
Weecl species listecl by the State of Colorado (2005) detected during surveys of the project area include
cheatgrass (Bromus tectorum), spotted knapweed (Centaurea stoebe), and tamarisk (Tamarix spp.).
Knapweed and tamarisk locations are depicted on Figure 2; cheatgrass was not mapped due to its
widespread distribution.
In areas where soil disturbances have created growing conditions that favor non-native vegetation,
several unlistetl nuisance weed species are present as well. These plants can impact revegetation efforts
and cause financial losses due to decreased seeding success and associated costs ofreplanting. The
presence ofthese plants creates increased competition for resources and can negatively affect desirable
native plant species. Plants in this category observed or known to exist in the project area include
Russian thistle (^Salsola tragus) and tall tumble mustard (Sisymhrium altissimum).
Outside of the survey area but nearby along the road running up the Conn Creek valley, WestWater
biologists also observed jointed goatgrass (Aegilops cylindrica) while travelling to and from the site.
4.3 Integrated Weed Management
Control of invasive species is a difficult task and requires intensive on-going control measures. Care
must be taken to avoid negatively impacting desirable plant communities and inviting infestation by other
pioneer invaders. Weed management is best achieved by employing varied methods over several growing
seasons, including inventory (surveys), direct treatments, prevention through best management practices,
monitoring of treatment efficacy, and subsequent detection efforts. Weed management is often limited to
controlling existing infestations and prevention of further infestations, rather than eradication, but through
effective weed management practices eradication can be possible in small to medium sized weed
populations.
Assessment of the existence and extent of noxious weeds in an area is essential for the development of an
intcgratcd wccd management plan. This report provides an initial assessment of the occunence of
noxious weeds for the project area. In order to continue effective management of noxious weeds, further
inventory and analysis is necessary to 1) 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
cconomical and effective treatments.
4.4 Prevcntion of Noxious Wccd Infcstations
Weed management can be costly, and heavy infestations may exceed the economic threshold for practical
treatment. Prevention is an especially valuable and economical strategy for noxious weed management.
WestWater trngineering Page 9 of 15 July 2020
Several simple practices should be employed to prevent weed infestations. The following practices will
prevent infestation and thereby reduce costs associated with noxious weed control:
. Prior to delivery to the site, all equipment and vehicles, including maintenance vehicles, should
be thoroughly cleaned of soils from previous 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.
. Avoid driving vehicles through areas where weed infestations exist.
. Use of weed-seed-free reclamation materials such as mulch and seed.
4.5 Treatment and Control of Noxious Weed Infestations
The treatment method and timing will be determined by the project proponent and their contracted
licensed pesticide applicators. The recommendations provided in this report will be considered when
developing annual treatment plans. General control methods for the species detected in the project area
are provided for reference in Table 5.
Table 5. General noxious weed control methods for in the area.
Bold: Garfield County List
4.6 Recommended Treatment Strategies
The following treatment strategies are presented for reference. It is important to know whether the weed
species being managed 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
6 and 7 . Herbicides should not always be the first treatment of choice when other methods can be
effectively employed.
Table 6. Treatment Strategies for Annual and Biennial Noxious Weeds
Prevent Seed Production
Control Methods
Common Name
Scientific Name
USDA Symbol
Type
Houndstongue
Cynoglossum ofticinule
CYOF
Biennial
Early Spring tillage before weed emergence in the existing
corridor to a depth of 2 to 4 inches. Herbicide application in
Spring while plants are small and it the late fall, bagging the
seed heads.
Herbicide application at rosette stage.
Spotted knapweed
Centøurea stoebe
CEST
Biennial
Perennial
Mechanical removal using cut stump method and individual
plant treatment herbicide application. Tamarisk leaf beetle
for dense infestations.
Tamarisk
Tamørix spp.
TARA
1. Hand grub (pull), hoe, till, cultivate in rosette stage and before flowering or seed maturity. If
flowers or seeds develop, cut and bag seed heads.
2. Cut roots with a spade 2"-3" below soil level.
3. Treat with herbicide in seedling, rosette or bolting stage, before flowering.
WestWater Engineering Page 10 of l5 Iuly 2020
4. Mow biennials after bolting stage but before seed set. Mowing annuals will not prevent flowering
but can reduce total seed production.
Table 6. Treatment Strategies for Annr¡al and Rienninl Noxinl¡s Weeds
Prevent Seed Production
(Sirota 2004)
Table 7. Treatment Strategies for Perennials
nutríent reserves ín root seed
(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.
Excessive application, either in frequency or concentration, can result in top kill without significantly
affecting the root system. Repeated excessive applications may result in resistant phenotypes.
4.7 Noxious Weed Management - Best Management Practices
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:
. Prior to delivery to the site, equipment should be cleaned of soils remaining from previous
construction sites which may be contaminated with noxious weeds.
. Equipment and material handling should be done on established sites to reduce the area and
extent of soil compaction.
. In all cases, temporary disturbance should be kept to an absolute minimum.
. 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.
¡ If stored longer than one growing season, topsoil stockpiles should be seeded with non-invasive
stcrilc hybrid grasses.
1. Allow plants to expend as much energy from root system as possible. Do not treat when first
spring but allow growth to budibloom stage. If seeds develop cut and bag if possible.emerglng m
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. Ifthe weed patch has been present for a long period oftime another season ofseed
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, rather, seed production
should be reduced. Many studies have shown that mowing perennials and spraying the regrowth is
not as effective as spraying without mowing. Effect of mowing is species dependent therel-ore 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 or practical. Most perennial roots can sprout from pieces only 0.5
Clean machinery thoroughly before leaving the weed patchinch - 1.0 inch long.
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.
WestWatcr Enginccring Page ll of15 July 2020
. Wetland vegetation, if encountered, should be live handled like sod, temporarily watered if
necessary, and placed over excavated sub-soil relative to the position from which the wetland sod
was removed.
. Cut-off collars should be placed on all wetland and stream crossings to prevent back washing
(seed vector) and to ensure that soil moisture conditions are not impacted after construction so
that native plants can re-establish from the existing seed bank.
r If working in weed infested sites, equipment should be cleaned of potentially seed-bearing soils
and vegetative debris prior to moving to uncontaminated terrain.
o After construction, disturbed areas outside the footprint of the development should be
immediately reseeded with an appropriate seed mix.
Herbicides: Many of the listed noxious weed species in Colorado can be controlled with commercially
available herbicides. Annual and biennial weeds are best controlled at the pre-bud stage after germination
or in the spring of the second year. Selective herbicides are recommended to minimize damage to
desirable grass species.
It is important that applicators adhere to concentrations specified on herbicide containers. Herbicides
generally do not work better at higher concentrations. Herbicide failures are frequently related to high
concentrations that result in top kill before the active ingredient can be transported to the roots through
the nutrient translocation process. Ifdirected on the herbicide label, a surfactant or other adjuvant should
be added to the tank.
Grazing: In the event grazing is allowed in the projec| area, it should be deferred in reclaimed areas until
revegetation ofdesirable species has been successfully established and seeded plants have had
opportunity to reproduce.
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. These inspections can then be used to
prioritize future weed control efforts.
4.8 Commercial Applicator Recommendations
A certified commercial pesticide applicator licensed in rangeland and/or right-of-way/industrial weed
control (depending on site characteristics) is a necessary choice for herbicide control efforts. An
applicator has the full range of knowledge, skills, equipment, and experience desired when dealing with
tough noxious weeds. In addition, the purchase and use ofrestricted use herbicides requires a Colorado
pesticide applicator license.
4.0 REFERENCES
Ackerfield, I. 2015. Flora of Colorado. Botanical Research Institute of Texas, Fort Vy'orth, Texas.
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: shrubland ecosystem dynamics in a changing environment. General Technical
Report, INT-GTR-338, Ogden, Utah: U.S. Department of Agriculture, U.S. Forest Service,
Intermountain Resource Station, 275 pp.
BLM. 2013. Revised Revegetation Seed Mix Menus, CRVFO Energy Team. U.S. Bureau of Land
Management, Colorado River Valley Field Office. Silt, Colorado.
WestWater Engineering Page 12 of 15 Iuly 2020
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.
Garlield County. 2016. Garfield County Vegetation Management and Garfield County Weed Advisory
Board. Garfield County Noxious Weed Management Plan, Adopted by Board of County
Commissioners Feb. 16, 2016.
Garfield County.2019. Vegetation Management Section -Noxious Weed List. Available online:
http://www.garfield-county.com/vegetation-management/noxious-weed-list.aspx. Rifle, CO.
Kershaw, L., A. MacKinnon, and J. Pojar. 1998. Plants of the Rocky Mountains. Lone Pine Publishing,
Auburn, Washington.
NRCS. 2020. Web Soil Survey, U.S. Department of Agriculture, Natural Resource Conservation Service,
URL: http://websoilsurvey.nrcs.usda.gov
Perry, L.G., D.M. Blumenthal, T.A. Monaco, M.W. Paschke, and E.F. Redente.2010. Immobilizing
nitrogen to control plant invasion. Oecologia: 163:12-24.
Sirota, Judith M. 2004. Best management practices for noxious weeds of Mesa County. Colorado State
University, Cooperative Extension Tri River Area, Grand Junction, Colorado. URL:
http :i/www. coopext.colostate.edu/TRA/Weeds/weedmgmt.html
State of Colorado. 2005. Rules pertaining to the administration and enforcement of the Colorado Noxious
Weed Act, 35-5-1-119, C.R.S. 2003. Department of Agriculture, Plant Industry Division,
Denver, 78 pp.
Weber, William 4., and Ronald C. Wittmann.2012. Colorado Flor4 Western Slope. Fourth Edition,
University Press of Colorado, Boulder.
Vy'hitson, 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 llest - 9'h edition. Western Society of Weed Science in cooperation
with Cooperative Extension Services, University of Wyoming, Laramie.
WestWater Engineering Page 13 of 15 Iuly 2020
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E,A,SEMENT AND RIGHT OF WAY AGREEMENT
THIS ACREEMENT, made this 2 flduy of fthrJt 2421, by and between
MAHOGANY ENERGY RESOURCES, LLC, a Delaware a limited liability corporation, whose
address is 285 - 8th Street, Meeker, CO 81641 as "GRANTOR' and ROCKY MOLTNTAIN
NATURAL GAS LLC, d,/b/a BLACK HILLS ENERGY whose address is 7001 Mount
Rushmore Road, Rapid City, South Dakota 57A02, hereinafter referred to as "GRANTEE".
WITNESSETTI:
WHEREAS, GRANTEE is desirous of obtaining a pipeline easemenl over certain real
property owned by GRANTOR and GRANTOR, in consideration of GRANTEE's acceptance of
the terms and conditions hereof, are desirous of granting an easement for such purpose;
NOIW, THEREFORE, in consideration of the sum of TEN DOLLARS ($10.00) and other
good and valuable consideration, the receipt and sufficiency of which is hereby acknowledged
the parties agree as follows:
GRANTOR hereby grant to GRANTEE, its successors and assigns, subject to the terms
and conditions hereof, a right of way and easement for the purposes, from time to time, either as
a common or private camier, of laying, constructing, operating, inspecting, maintaining,
repairing, replacing, substituting, relocating, and rernoving one eight (8) inch O'D. pipeline
(which pipeli¡e, with valves, meters. fittings appliances, and related appurtenances, devices, and
is hereinafter refened to as "pipeline") for the transportation of natural gas and associated liquids
and gases, over and through a strip of land in Garfield County, State of Colorado, fifty (50) feet
in width, hereinafter referred to as the "Easement Area", the center line of which is described in
Exhibit "A" attached hereto and incorporated by this reference; Grantee shall also have use of the
staging areas identified on "Exhibit B" attached hereto and incorporated by this reference. Such
ternpoiary staging areas shall be granted only for the period ofactual construction, cleanup, and
restãration of the pipeline and at the end of such period, be reseeded and water bars installed as
needed 1o prevent erosion.
This grant is made subject to the following terms and conditions:
1. RICHTS GRANTED TO GRANTEE
l.l GRANTEE shall have the right of ingress and egress ino on, over. across, and
through said above designated lands for any and all purposes necessary to the exercise by
GR,qNTEE of the rights and easements granted herein as specifically shown on "Exhibit C"
attached hereto zurd incorporated by this reference; and
LZ GRANTOR excepts from the foregoing grant of easement all ores and minerals
in, ono or under the Easement Area, and reserve the right for themselves or their assignees to
explore for, mine. and remove the same, subject to the termination provisions of this agreement;
1
and, the right to erect or constn¡ct on or across the Easement Area above ground, grade level. or
runclergrountl pipelines. power lines, telephone lines. roads, or eny other facilities.
1.3 This easement is made subject to all existing enuunrbrances. liens. easemeüts,
rights of way, licenses, leases, and other agreements affecting the surface or subsurface of the
Easement Area; and
1.4 GRANTOR make no warranties or representations conceming the title to the
Easement Area.
2. GRANTEE'S COVENANTS
2.1 TRANTEE shall have no right to locate any permanent surface installation,
including fences, within any part of the Easement Area without the approval of the GRANTOR.
2.7 GRANTEE agrees to maintain and operate the easement herein granted in such a
manner that the operation thereof will in no way hinder or prevent the proper and reasonable use
and enjoyment of the adjoining property owned by GRANTOR at the date of this conveyatlce.
2.3 GRANTEE agrees to use its best efforts to remove topsoil from the easement
separately from other material removed by GRANTEE in the cc¡nstruction of the pipeline, and to
replace such topsoil in the easement on completion of any such construction
2.4 GRANTEE agrees to replace or rebuild to the satisfaction of ÛRANTOR any and
all damaged parts of any drainage or irrigation system that may be damaged by construction of
the pipeline.
2.5 GRANTEE shall have the right to cross fences on the adjoining property of
GRANTOR whenever such crossing shall be reasonably necess&ry in the construction,
maintenance, or operation of the pipeiine; however, GRANTEE shall mainlain a proper
enclosure at all times and restore such fences as promptly as possibie to their condition prior to
the crossing.
2.6 GRANTOR reserve the right to fence the whole or any part of the boundaries of
the easement, and the right to br¡ild fences crossing such easemenÎ.
2.7 GRANTEE shall bury the pipeline to provide a minitnum of thirty-six (36) inches
between the top of the pipeline and ground level.
2.8 GRANTEE shall not share or disclose any environmental report or environmental
study with any other party without the written consent of Grantor.
29 GRANTEE agrees to pay for any and all damages to fences, tirnber , roads.
ditches, land , and improvements which rnay be suffered from the construction, operation,
maintenance, or removal of the pipeline which cannot be otherwise repaired, replaced. restored,
elc., as herein set out.
3. TERM
2
3.1 This agreement shall be effective for a period beginning with the date hereof and
shall continue so long as GRANTEE continues to use and maintain the facilities under the
Easement Area, unless terminated or cancelled prior thereto in the manner provided for herein.
4, CONDUCT OF OPERATIONS
4.1 The construction, maintenance, operation, and removal of the pipeline, and all of
the GRANTEE'S operations in and about the Easement Area, shall be per formed ancl conducted
in a carefuln safe, and workmanlike rnanner, and in conformance with goverTìment and industry
standards for natural gas pipeline transrnission, and in such a manner as will not interfere with
GRANTOR' exploration, rnining, or other operations on other lands in the vicinity of the
Easement Area. Prior to exercising any rights granted hereunder, GRANTEE shall give written
notice to GRANTOR and all other persons holding any rights, lieenses, or leases to use the
surface of the Easement Area and of lands used lor access thereto'
4.2 All such construction, operations, maintenance, and removal of the pipeline shail
be performed by or under the direction of GRANTEE. and GRANTEE shall not permit, u¡rless
otherwise authorized by GRANTOR. public easements, public fàcilities, or public roads over or
under the Easement Area.
4.3 GRANTEE shall keep the pipeline in good and safe co¡rdition and , after doing
any work in corurection with the construction. use, maintenance, or removal of any portion of the
pipeline, GRANTEE shall restore the surf"ace of the Easement Area to as good a condition as
existed prior to such work.
4.4 GRANTEE shall impiement measures to control all invasive u'eed species on the
Easement Area or other lands affected by GRANTEE'S operations under this agreernent.
GRANTEE shall treat noxious weeds until the project reaches final stabili zation, as detined by
the Colorado Department of Public Health & Environment (CDPHË). Construction storrnwater
inspections will take place on the disturbed area until the site reaches frnal stabilization at which
time the permit will be closed.
5. INDEMNIFICATION
5.1 GRANTEE shall indemnify CRANTOR and save them harmless tiom and against
any and all claims, liability, and causes of action for injury to or death of any persons, or for
damage to any property, together with all costs and expenses, inclucling attorneys' fees, arising
out of or resulting from the construction, use, maintenance. or removal of the pipeline, or from
any operations, activities, or property of GRANTEE on or about the Easement Area. No
additional risk or liability shall be assumed or incurred by GRANTOR by reason of the granting
of this right of way ar¡d easelrtent.
6. TAXES AND ASSESSMENTS
6.1 GRANTEE agrees ro pay promptly and before delinquency all taxes and
assessments levied or assessed upon or against the Easement Area during the term hereof, by
reason of, or resulting frorn the construction, maintenance or use of the pipeline, and to
3
reimburse GRANTOR for any increase in taxes paid by GRANTOR resulting from the value of
such pipeline, whether or not separately assessed. GRANTEE shall pay all taxes levied or
assessed upon or against GRANTEE'S pipeline and operations on the Easement Area.
7. TERMINA'IION AND DEFAULT
7 "l GRANTEE may terminate this agreenrent at any time by written notice to
CRANTOR. Upon such termination, all rights of GRANTEE in, upon and under the Easement
Area shall cease, subject to the provisions below concerning removal of GRANTEES pipeline
frorn the Easement Area.
7.2 In the event of any default by GRANTEE in its obligations hereunder,
GRANTOR may deliver to GRANTEE written notice specifying the default. If the default
remains uncorrected fbr a period of thirty (30) days after delivery of the notice, this agreement
shall then terminate.
7.3 Whenever GRANTOR determine in their sole judgrnent that GRANTEE'S
pipeline will interfere with GRANTOR'S existing or proposed operations, GRANTOR may so
notify GRANTEE" by written notice describing the portions (or all) of the Easement Area as to
which GRANTEE'S continued use will so interfere. Whenever GRANTOR'S existing or
proposed operatiCIns in the Easement Area will endanger GRANTEE'S pipeline or use thereof,
GRANI'EE may so notify TRANTOR by written notice describing the portions (or all) of the
Easement Area which will be so endangered. In the event that such notice of interference is
given by either party, CRANTEE shatl relocate its pipeline to a new location of either (a)
GRANTEE'S choiee upon lands other than those owned or occupied or controlled by
GRANTOR, or (b) GRANTOR'choice, and satisfäctrry to GRANTEE, upon other lands owned
or occupied or controllecl hy GRANTOR. Notwithstanding any provision herein to the contrary.
GRANTEE acknowledges that GRANTOR shall not be obligated to fi.unish an alternate route,
and the granting of this easement shall not be construed as the granting of a perpetual easemenf
on GRANTOR'S land. The expense of such relocation shall be bom solely by GRANTEE.
GRANTEE shall have six (6) months from delivery of the notice of interference in which to
complete any relocation hereunder. In the event of relocation upon other lands of GRANTOR. all
of the provisions of this agreement, including this paragraph, shall apply to the relocated
Easement Area. Whenever the foregoing notice of interference is given by either party, this
agreement shall terminate, as to all of the Easement Area described in the notice, six (6) months
to the day after delivery of such notice.
7.4 If GRANTEE fails to begin construction of the pipeline within twenty-four (24)
months after the eflective date of this agreement, GRANTOR may terminate this agreement
upon written notice to GRANTEE.
7.5 If, at any time after GRANTEE begins or completes construction of the pipeline,
the Easement Area or any part thereof is no longer used tbr the pipeline for a continuous period
of twe¡ty-four (24) months. GRANTOR may terminate this agreement as to all those parts of the
Easement Area nü longel uscd as above, by giving written notice to GRANTEE.
Notwithstanding anything in the foregoing, this easement shall not terminate if GRANTEE'S
4
nonuse of the pipeline is due to circumstances outside GRANTEE'S reasonable control including
but not limited to that temporary economic conditions are of such nature that it is not economical
to CIperate the pipeline.
7.6 Upon any termination of this agreement as to all or any part of the Easement
Area, GRANTEE shall have a period of six (6) months from and after the effective date of
termination in which to rernove the pipeline from the Easement Area or from the part thereof as
to which the termination applies; provided, however, that in the event of any relocation of the
pipeline as provided in section (7.3) above, the removal provision of such section (7.3) shall
apply. After the six (6) month period, any pipeline or property of GRANTEE remaining on or
under any portion of the Easement Area as to which this agreement has terminaÉed shall at the
option of GRANTOR either be deemed abandoned by GRANTEE and shall become the property
of GRANTOR, or shall be removed -from the Easement Area at GRANTEE'S expense.
7.7 Upon termination of the rights herein given, CRANTEE, upon request by
GRANTOR, shall execute and deliver to GRANTOR. within thirty (30) days after written
demand therefore, a good and suffrcient quit claim deed to all interests of GRANTEE so
terminated. Should GRANTEE fail or refuse to deliver to GRANTOR such quit claim deed. a
written notice by GRANTOR reciting the failure or refusal of GRANTEE to exeeute and deliver
said quit claim deed, as herein provided, upon recordation of said notice. shall be conclusive
evidence against CRANTEE, and all persons clairning under GRANTEE, of the termination of
this agreement or a portion thereof md all interest of GRANTEE hereunder as to that porrion"
subject to GRANTEE'S right to remove its property within six (6) months of such tennination.
8. GRANTOR RIGHT TO SERVTCE
8.1 As a further consideration for the grant and conveyance of this easement and right
of way, GRANTEE shall use its best effo*s. subject to approval of such regulatory bodies as
may have jurisdiction, at GRANTOR'S request, to supply natural gas to any improvements
owned by GRANTOR within one half (ll2) mile of the pipeline at the rate, as of the time of
supplying such natural gas, which is being charged for the type and use of the improvement to
which it is being supplied. Cost of procuring and laying any such service line shall be in
accordance with GRANTEE'S tariffs^ rules, and regulations then on file with the Colorado Public
Utilities Commission.
9, ASSIGNMENT
g.l The rights granted to GRANTEE under this agreement shall not be assigned or
otherwise transfened without the prior written consent of GRANTOR, which permission shall
not be unreasonably withheld or delayed. Subject to the foregoing, all of the terms, covenants.
and conditions of this agreement shall be binding upon the suceessors an assigns of the parties.
I O. WAIVER OF RIGHTS
10.1 The failure of either party to enforce, at any time, any of the provisions of this
agreement, or to exercise any option which is herein provided, or to require at any time.
performance by another party of any of the provisions hereof, shall in no way be construed to be
5
a waiver of suclt provisions, nor in any way at'f'ect the validity of this agreement or any part
thereot, or the right of a party to thereafter enforce each 'and every such provision.
I I. COVERNTNG LAW
I LI This agreement and exhibits hereto shall be governed as to validity, enforcement,
construction, effect, and in all other respects, by the law of the State of Colorado, and its courts
shall have jurisdiction to enforce this agreement.
ll.2 In the event of a default by any party in the performance of its duties, the court
with the proper jurisdiction to resolve the dispute shall arvard reasonable attorney fees and costs
to the successful party, or in such other manner as the court sees fit.
12, NOTICE
l2.l Any notice required or permitted under this agreernent shall be given in writing.
The notice shall be served either (i) personally, (ii) registered or certified mail with retum receipt
requested, or (iii) telex. Service shall be effective when received. All notices hereunder shall be
directed to the address set forth below or such substitute address or addresses as provided to the
parties to this agreement thirty (30) days in advance of any notice. Present addresses to w'hich
notices shall be sent in accordance with the provisions of this section are:
GRANTOR: MAHOGANY ENERGY RESOURCES, LLC
285 - 8th Street,
Meeker, Colorado 81641
ATTN: Chuck Whiteman
CRANTEE:ROCKY MO{INTAIN NATURAL GAS LLC
7001 Mount Rushmore Road
Rapid City, South Dakota 57002
ATTN: Land Department
IN WITNESS WHEREOF, the above parties have executed this agreement as of the day
and year first written above.
MAHOCANY ENERGY RESOURCES, LLC
By:
ustin Bilyeu - Vice Pres
ROCKY MOUNTAIN NATURAL GAS LLC
r
6
By
I G. Harris - Director of Land
ACKNOWLEDGMENTS
STATE OF SOUTH DAKOTA
COI.'NTY OF PENNINGTON
The foregoing Easement and Right'of- Way Agreement acknowledged before me
202l,by Randal G. Harris, on behalf of ROCKY
Right-of-Way Agreement acknowledged before me
?A2l,by Justin Bilyeu, on behalf of Mahogany
)
) ss.
)
this 3l s day of
MOLINTAIN NATURAL CAS LLC as its Director of Land.
Witness my hand and official seal.
Public
My Commission Expires: 4-)o'2rt¿<
STATE ()
)
)
ss.
COUNTY OF
this
*\.
Easement and
of
Energy Resources, LLC. as its Vice President'
Witness my hand and official seal.
Notary Public
My Comrnission Expires:L
STEPHANIE BORNHOLDT
NOTARYPUBLIC
STATEOFCOLORADO
NOTARY tD#20074030604
Commi¡sion 9,2423
7
Jstt)
Cf)
r|:I
t-
JEAiIETTE LUTIDOUIST
iIOTARYPUBLIC
State of Soulh Dakota
EXHIBIT A
PÊRIIAIIENÎ EASEfiIEìIÎ DESC$PTIOII
A CENïERIINE DESCRIPTION FOR A S0 FOOT WDE PERMANENT EASEITIENT. BEING 25 FEET. AS
MEASURË,D PËRPENDICULAR, LEFT AND RIGHT OF SAID CËNTERLINE LOCATED IN SECTIONS 25 AND 26.
ÎO\A/NSIIIP 6 SOUTH. RANGE 98 WEST AND SECTION 1, TOITNSHIP 7 SOUTH, RANGE 9S WEST OF THË 6TH
PRINCIPAL MERIDIAN: COUNTY OF GARFIELD. STATE OF COLORADO, MORE PARTICULARTY DËSCRIBED
AS FOLLOWS:
COMf'lENClNc AI THE NORTHEAST CORNER OF SAID SECTTON 25 (CALCUIATÊD CORNER); THENCE
souTH 68" 27' 58" WEST, A DISTANCE OF 601.74 FEET (Ll ) rO rHÊ CENTERLTNE OF AN EXIST|NG
ËASEMENT AT IHE LOCATION OF THE PIPËLINE AS CONSTRUCTED AND THE POINT OF BEGIilNING:
THENCE ALONG SAID CENTERLINE WHICH ¡S 25 FEET WESTERLY OF AND PARALLEL WITH AN EXISTING
50'WDE KINDER MORGAN EASEMËNT, RECORDED IN BOOK 1079 AND PAGE 611, SOUTH 35" 51' 56''
Whs I , A UIS lAN0È. üF 51ð.24 FËËT (12)l THËNCE CONTINUING PARALLËL wlTH SA|D SA|D KTNDER
MORGAN EASEMENT, SOUTH 22'29'46" WEST, A DISTANCË OF 652.63 FEET (13); THENCE CROSSTNG SAIO
KINDER MORGAN EASEMENT, SOUTH 14'42'56" EAST, A DISTANCE OF 165.35 FEEI (La): THENCE 25 FEËT
EASTERLY OF AND PARALLEL WTH SAID KINDER MORGAN EASEMENT THE FOLLOWNG 1O COURSES:1. SOUTH 22 29'46. WESr. A DTSTANCE OF 551.85 FEET (15):
2. THENCE SOUTH 49' 32' 28" WEST, A Ð|STANCE OF 280.74 FÊET (L6).
3. THENCE SOUTH 09" 1 1' 49" WEST. A DTSTANCE OF 1 348.89 FEET (L7);4. THENCE SOUTH 11" 24' 10" WEST. A DISTANCE OF 2552.51 FEET (LB)is. THENCË SOUTH 16' 11'20',WEST. A ûISTANCE OF 1546.95 FEET (L9):6. THENCE SOUTH 02" 19'2S" WEST, A DISTANCE OF 1274.23 FEET (110);7. THENCE SOUTH fO', 26' 55" EAST. A DTSTANCË OF 1423.58 FËET (L1 1)rL THENCE SOUTH 49' 19' 12" EAST. A DTSTANCE OF 1461.83 FEËT (L12):
9. THENCE SOUTH 00" 50' 19" WEST. A DTSTANCE OF 3633.S1 FEET (L13):
10. THENCE SOUTH 42" 48' 37" EAST, A DISTANGE OF 1334.86 FEET (L14) TO THE EAST L|NE OF SA|D
SECTION 1 ANO THE POINT OF TERMINUS FROM WHICH THE SOUTHÊAST CORNER OF SAID SECTION
1 , A 2" BRASS CAP BEARS SOUTH 01 ' 43' 25" WEST, A DTSTANCE OF 143.1 5 FEET {11 5).
CONTAINING 839.614 SOUARE FEET OR 19.275 ACRES. MORE OR LËSS.
THE SIDELINES OF SAID EASEMENT ARE SI{ORTENEO OR LENGTHENED TO MEET AT ANGLE POINTS Af THE
SOUTHËRLY LINE OË THË ËXIS'TING PIPELINË EASEMENT AND THE EAST LINE Of: SAID SËCTION 1.
ALL BEARINGS ARE GRID SËARINGS BASED ON NAD B3(201 1 } DATUM, COLORADO STATE PI.ANÉ COORDINATES,
CEN-TRAL ZONE. ALL DISTANCES AND AREAS ARE REPRESENTËD IN GRID VALUES, US SURVEY FEET, ANT ARE
BASED ON SAID HORIZONTAL DATUM.
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LINE TABLE
LINE NO,DIRECTION LENGTII
ll s68"27'58nV 601.74
t2 s35"51'56'W 318.24',
L3 S22"29',16"W 652,63'
s14'42'5ô"8 r65.35'
t5 s22"29461lv 551.85'
LO s49"3220'W 2W-74',
L7 s{xl'r1'49'w 1348_89'
L8 s1t'2410T'2552.51'
L9 s16'f1',zo'liv 1546.95'
t10 sof1gænv 1747.23',
111 s10'2655"E 1429.58'
L|2 s49'1rr2'€1461_83'
113 s00"50'19"w 3m3.91',
Lf4 s¿f48'3?^E 133¿.86'
L15 s01.43251/V t43.r5'
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MAHOCANY ENERGY
RESOURCES LLC
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LEGEND
ãXISIING KINDTR I/ORGAN IASTVENÏ
PROPOSED CENTERTINE
PERIIAI'I€NT 50' WIOE EASTMËNT
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ç.ASEMENT LENGTH 16784 58 RODS
oß
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PARCEL BOUNDARY
FOUND SESNON CORNER
c¡ióú,qrso iEcno¡l con¡¡eR (sEE NoTE 4)
NOTES:ilifrl rxg¡err DoEs ñoÌ REPRESENT A MoNUMENIED tANÐ suRvef'
z. iunvr¡rvc l¡o urpprHc, LLc AccÉpTS NO UAEtUfy $llTH RESPECI l0 IHE ACCURACY
OF I}IE RECORD INFORMÂI'ION PROVIDED gY OTHERS.
3. ALL BÊARINCS AnE CRID EEARINGS BÂSED ON l{,4q9!(2011)-0aTUM, C0L0RAD0 sÏAfE-' pr-n¡icoonorru¡r¡s, 6EMTRAL ZONE. ALL DISTANCES ANg ARËq5 ARE RTPRESENTED ltt
ðn-rö*veiúeî, us sïñú rsn. AND ARE BAsED ory-sAro HoElzoNTAt oÅTuM'
c. pôlnrôñs ron c¡¡"Cu¡¡r¡o ion¡¡¡as AS sHowN HEREoN ARE BASED 0N gLM
GEOCRÂPHICCOORDIi¡ATEDATABASE(GCDB)DÁTAt¡-o-!¡RgNIYISHEREBYI'ilAD€iıñ-ärt On¡c¡¡¡rL poSmON 0F THESÈ coRilERS. SECIo-I|,INFoRMAII0N BASEo oN 6is
püs iìññicinr. ño vlnrrcnrroN Ì¡tRouGH BouNDAry EVTDENCE nEcovtRY lvAs MAoE.
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SURVEYINC AÑO MÁPPING LLC (SÁM'
555 z.ng 8r., 8úúo 2r0
Lakôwúd CO. 80228
Ph {t03) 888-5852 Fô' (301}18&?165
EùlAlL: SAM@SArtl'8lZ SHEET 2 OF 2
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2.10 ACRES
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PIN: 21
LEGEND
EXISTING KINDER MORGA¡¡ EASEMENT* MOPOSSD CENIERUNE
PERMATIENT 50. WIDE gÂSEMSNT
STAGINC AREA û
SECAON UNE
PARCEL EOUNOARY
1600'3200
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4CCESS RO¿D,APPROXIMATE LENGTH)18433.94 FT OR 3.49 MII,ES
LEGEND
ÁccEss RoÀD
SEC]ION IINE
TOWNSHIP LIÑT
PARCEL BOUNDARY
0 400a'
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SHTET 1 OF I
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Lskowúd Co. t10228
Ph {31ì3)9885852 Få, {þ3)9&.2195
Et¡ÂlL: $AM@9M g¿
Cn?r
SURETY
KNOW ALL MEN BY THESE PRESENTS
GRADING PERMIT BOND
Bond Effective March I ,2021
Bond Number' 190046471
Libertv
Mutuá1.
THAT WE,Rocky Mountain Natural Gas, LLC
(Permittee)
As Principal, and Liberty Mutual lnsurance ComPanY Organized and existing underthe laws of the
(Bonding CompanY)
State of Massachusetts , as Surety, are held and firmlY bound unto Garfield CountY
in the just and full sum of $96,175.00 Ninety Six Thousand One Hundred Seventy Five Dollars and 00/100
lawful money of the United States, or the payment of which'
well and truly to be made, we bind ourselves, our heirs, administrators, executors, successors and assigns, jointly a nd severally,
firmly by these presents.
The condition of the foregoing obligation is such that whereas said principal has filed or is about to file with Garfield County
an application for a permit to perfo
owned by said principal known as
rm excavation orfill work, described in the application forthe grading permit, upon real properly
Rocky Mountain Natural Gas, LLC
NOW THEREFORE, if the above named principal shall well and truly comply with all the requ irements e1 Garfield CountY
, and if all of the work
required to be done complies with all of the terms and conditions of the grading permit for excavation or fill or both to the
saiisfaction of the City Engineer, and is completed within the time limit specified in said grading permit, then this obligation shall be
void and of no effect. otherwise it shall be and remain in full force and effect.
The said surety, for value received, hereby stipulates and agrees that no change, extension of time, alteration or additions to the
terms of the pérmit or the work or improvements to be performed thereunder or to the grading plans attached to said permit shall
in anyway affect the obligations on this bond, and it does hereby waive notice of any such change, extension of time, alteration or
additions to the terms of the oermit or to the work or imorovements or the olans.
WITNESS OUR HANDS THIS 22nd day of 2021
Rocky Mountain Natural Gas LLC : Libertv Mutual lnsurance Companv
(Surety)
o
o)6I(P,¡in
By:
By:
vr.-
Ann
d Title)
G"r*4
NOTE: acknowledgments of Execution by Principals and Surety must be attached'
Liberrv Mutu;¡l Suretv Clainrs . PO Box 34526, Seättle, WA 98124'Phone: (206) 473-621t ' Fax: (866) 548-6823' Étnrail: !.lOSCL@libertymutual,corn . www.LibedyMutualSufetyclainrs.conì
(Attorney-in-Fact)1912
LMS-2'f 054 01i20 lD-'1435 (Rev.5-19
Liberty
MutuáI.
This Power ofAttomey limits the acts ofthose named herein, and they have no authority to
bind the Company except in the manner and to the extent herein stated.
Liberty Mutual lnsurance ComPanY
The Ohio Casualty lnsurance Company
West American lnsurance ComPanY
POWER OF ATTORNEY
Certifrcate No: 8202089-1 90057
SURETY
KNOW¡I ALL PERSONS By THESE pRESEilTS: That The ohio cæualty lnsurance company is a ærporation duly organized under the laws of the sþte of Nslt Hampshire' lhat
Grogan:KeshaN. Greene: Ann Higgins; Danielle Schmitt
all of the
execute,
of thæe
persons.
lN WTNÊSS WHEREOF, tì¡s power of Attomey has been subscribed by an authorized ofüær or official of tfre companies and the corporate seals of the companies have been affued
theretothis 9th dayof September ,2019
Liberty Mufual lnsurance Company
The Ohio Casualty Insunanæ Company
lnsuranæ Company
By
Secretary
State of PENNSYLVANIA
County of MONTGOMERY
ss
on this gth dav of SeDtember , zo1g before me personally appeared David M. Carey, who acknowledged himself to be the Assistant Særetary of Liberty Mutual
ðö;r1lfüt6ntðåAffi'maffiiÁ*run lirsurance cómpany, and tfmt he, as such, being authorized so to do, execute the foregoing instument for the
therein ónta¡neU by sþning ón behalf of the corporatíons by hirnself as a duly authorized ofñcer.
lN WTNESS WHEREOF, I have hereunto subscribed my narne and afflxed my nobrisl seal at K¡ng of Prussia, Pennsylvania, on the day and year first above written.
This power of Athmey is made and executed pursuarìt to and by autrorig of tfre folloriring, ByJaws and Autrorizations of The ohio Casual$ lnsurance Company, Liberty
lnsurance Company, añd West American lnsurance Company which ræolutions are now in full force and efiec{ reading as follows:
låi/"By:
ARTICLE fV - OFFIGERS: Section 12. Power of Attomey.
the Chairman or the Præiden[ and subject to such limihtion as he Chairman orAnyofficer or oher official of he Corporation aulhorized for that purpose in writing by
President may prescribe, shall appoint such attomeys'in-fact'as may be necessary to ac't in behalf of the Corporation to make, e,\ecuie, seal, acknowledge and deliver as
any and all undertakings,bonds, recognizanæs and oher surety obligations. Such attomeys-in-fact subject to the limitations set forth in their ræpective powen of attomey,shall
have full power to bind the Corporatíon by their sþnature and execution of any such ¡nstrumenb and to athch thereto the seal of the Corporation. When so executed, such
insfumenß shall be as binding as if sþned by t¡e Præident and attæted to by the Seaetary. Any Power or authority granted to any repres€ntative or attomey-in-fact under the
provisions of fiis article may be revoked at any time by the Board, the Chairman'the President or by the officer ø offcers granting such power ot authority.
ARTICLE Xll - Execution of Gontracb: Section 5. Sure$ Bonds and Underkkings'
shall appoint such aftomeys-in-fact, as may be neæssary to aú in ¡.hrf of tne Company to make, execute, seal, acknowledge and deliver as surety any and all underÞkings,
Company by their sþnafure and execut¡on of any such instruments and to attach thereto the seal of the Company. When so exæuted such ¡nstruments shall be æ binding as if
sþned by the president and attested by the secrehry'
fact as may be necessary to act on behalf of üre Company to mafä, e,\ecute, seal, acknowledge and deliver as surety any and all undertakings, bonds, recognizanæs and oürer surety
obligalions,
Company, wherever appear¡q upon a certified copy of any power of attomey issued by ürê Company in ænnection with surety bonds, shall be valid and binding upon the Company with
the same force and effect as ftough manually afflxed.
LLrtl day of
has not been revoked.
lN TESTIMCTi¡Y WHEREOF, I have hereunto set my hand and affixed the seals of said Companies ftis
1912 l919 1991
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Notariàl Scal
Téresa Pa¡lêllá, Notâry Publ¡c
Upper litêrionTwp., Montgomêry Counly
My Commbs¡on Expiros Mãrch 28,2021
1912 r9f9 l99l
LMS-12873 LMIC OCIC WAIC Mult¡ Co-062018
By
-->tu.\\^dv\,¡'--1 /p:l-i
ACKNOWLEDGMENT BY SURETY
STATE OF Minnesota
)ssCounty of HennePin
on this ?:Lr"A day of 1-16t'a..na./202-l , before me personally
appeared Ann Higgins , known to, me to be the Attorney-in-Fact of
Liberty Mutual lnsurance ComPanY
, the corporation
that executed the within instrument, and acknowledged to me that such corporation executed the same.
IN WITNESS WHEREOF, I have hereunto set my hand and affixed my official seal, at my office in aforesaid County, the day and
yeal in this certificate first above written
.íí,t i,i:';\i: i.i,ffi
: ., ¡.; ,..itít;.,/
DANIIËtLE H SCHMIT'r
Noterl, Public
Stalo ùf ¡,/linnescta
My Coirnríssíon Ëxpires
"la¡ua¡ V ili ,21)?-4
Notary
County
the State of Minnesota
Hennepin
s-0230/GE 1 0/99
XDP
STORMWATER MAI{AGEMENT PLAN
DeBeque Legoff 8-inch Pipeline Replacement Project
Garfield County, Colorado
Permit # COR400000
Certification # COR4 1 1 498
March 2021
Preparedfor:
Black Hills Corporation
1301 W 24th Street
Cheyenne, V/Y 82001
Prepared by:
WestWater Engineering
2516 Foresight Circle #l
Grand Junction, CO 81505
Stormwater Management Plan
Rlack Hills Corporation
Delleque LegolT Pipeline Replacement Project
Management Plan Revisions
Date Description tnitials
Contents
SECTION 1...
rNTRODUCTION...............
sEcTroN 3....,........,,...........
CONSTRUCTION SITE DESCRIPTION..
3.1 SiteLocation..........
3.1.1 Land Owner(s)
3.1.2 Receiving Waters...
3. r.3
3.2 SiteDescription..............
3.2.1 Land Use. ...............,..
3.2.2 Topography...
3.2.3 ExistingVegetation
3.2.4 ExistingSoilClassification.
3.3 Schedule of Construction Activities ..................
SECTTON 4..................
POTENTIAL POLLUTION SOURCES .......
4.1 Sediment
4.2 Construction Activities and Support Facilities........
4.2.1 Fuel and Lubricants
4.2.2 Portable Toilets, Trash and Debris........,
4.3 Other Pollutant Sources
sEcTroN 5.....
DESCRIPTION OF SOIL CONTROL MEASURES ............
5.1 Structural Practices for Erosion and Sediment Control
5.2 Non-Structural Practices for Erosion and Sediment Control
SECTION 6..
SEQUENCE OF CONTROL MEASURE IMPLEMENTATION
6.1 Construction
6.2 Interim Stabilization
6.3 Final Stabilization.........
sEcrroN 7...........
.....,10
......,................. L0
........................ L1
.................,...... 11
'''''.,''',,,,,',,,'.'.. 12
N4arch202l
'J.
1.
2
3
3
3
3
4
4
4
4
4
4
4
5
6
6
6
6
6
7
7
7
7
7
9
WestWater Engineering TOC 1
MATERIALS HANDLING AND SPILL PREVENTION...........
7.1 Waste MarragernenL and Disposal
7.2 Fuels and Materials Management.....,,.....
7.2.1 PetroleumProducts.
7.2.2 Chemical Product Management
7.2.3 Materials Management...........,.,
7.3 Construction Site Housekeeping and Maintenance
SECTION 8.
INSPECTION AND MAINTENANCE PROCEDURES
8.1 Inspections..
8.2 Maintenance
SECTION 9....
NON.STORMWATER DISCHARGES .......
SECTION 10
sEcTroN 11.,,...,..
REFERENCES.....
12
12
12
72
13
13
13
'J.4
't4
t4
15
16
16
\7
18
18
Appendix A
Appendix B
Appendix C
Appendix D
Appendix E
Appendix F
LIST OF APPENDICES
Construction Phase Figures
Interim/Final Stabilization Figures
General Permit Application and Certification
Control Measures Description and Installation Details
SWMP Inspection and Maintenance Report Form Example
Seed Mix
WcstWatcr Enginccring TOC 2 March202l
SECTION 1
INTRODUCTION
This Stormwater Management Plan (SWMP) is designed to comply with the Colorado Department
of Public Health and Environment (CDPHE) Water Quality Control Division (WQCD) General
Permit Number COR-400000 issued April l, 2019 for Stormwater Discharges Associated with
Construction Activity (General Permit), the Federal Clean Water Act, and U.S. Environmental
Protection Agency National Pollutant Discharge Elimination System regulations found in 40 CFR,
Part 122(p) for Stormwater discharges (CDPHE202l).
Stormwater construction permits are required for construction activities that disturb one (l) or
more acres during the life of the project, or are part of a larger common plan of development. The
CDPHE considers a common plan of development to encompass development where multiple
separate and distinct construction activities may be taking place at different times on different
schedules, but still under a single plan.
This SWMP addresses activities associated with the ground disturbances related to the proposed
DeBeque Legoff 8-inch Pipeline Replacement Project. Rocky Mountain Natural Gas, LLC
(RMNG), doing business as Black Hills Energy (Black Hills), will construct approximately 4.68
miles of new buried 8-inch steel pipeline to replace approximately 2,600 feet of exposed above-
ground pipeline. The project will temporarily disturb approximately 45.18 acres during
construction activities.
This SWMP contains allofthe general permit area information, Stormwater Site Plans are located
in Appendices A and B, and all Inspection and Maintenance Report Forms will be maintained at
Black Hills' field office with the designated construction inspector and with the designated
stormwater manager for this project. This SWMP is intended to be periodically updated as
required to address new disturbances and other changes needed to manage Stormwater discharges
and protect surface water quality. Any SWMP design changes or changes to the erosion control
measures being used will be noted on the Site Plans (Appendices A and B), and Inspection and
Maintenance Report Forms as those changes occur.
Willow Creek will conduct the actual construction and grading with all work supervised by Rocky
Mountain Natural Gas (RMNG) and all decisions made by RMNG.
Black Hills has received a Colorado Discharge Permit System (CDPS) General Permit for
Stormwater Discharges Associated with Construction Activities certification, a copy of which is
provided in Appendix C. Black Hills' CDPS General Permit Application is also provided in
Appendix C.
Willow Creek will be installing and maintaining the erosion control measures outlined in this
SWMP with supervision and guidance from Black Hills to ensure they are following the
stormwater permit regulations. A third-party environmental consultant will complete required
stormwater inspections until final stabilization.
WestWater Engineering Page 1 of l8 ll4arch2lZl
SECTION 2
OUALIFIED STORMWATE,R MANAGER
The SWMP Manager is responsible for developing, implementing, maintaining and revising the
SWMP. This individual is responsible for the accuracy, completeness and implementation of the
SWMP.
SWMP Manager Certification. This is to certify under penalty of law that I understand the terms
and conditions of the SWMP and associated CDPS General Permit that authorizes Stormwater
discharges associated with the industrial activity from the construction sites identified as part of
this certification.
Signature:
Name:
Title:
Date:
Amie Wilsey
Principal Environmental Scientist
2/1 9DO?
É*rfuy
I
Representing Company:
Address:
Telephone
WestW Ensineerins
2s16 Foresisht Circle #l
Grand hrncfion co 81 50s
970-241-7076
WestWater Engineering Page 2 of l8 March2tJ2l
SECTION 3
CONSTRUCTION SITE DESCRIPTION
3.1 Site Location
The proposed DeBeque Legoff Pipeline Replacement Project will be located in Garfield County,
Colorado north of the Town of DeBeque (Figure l). The legal description of the project is as
follows:
6PM
T. 75, R.97W, Section 8, Lot 2,Lot3
T.65, R. 98W, Section 25, SWSE, SENE, NWSE, NENE,
T.65, R. 98W, Section 36, NWNE, SWNE, NWSE, Lot 5
T.65, R. 97W, Sections 29 and30
T. 75, R. 98W, Section l, SENE, NESE, SESE, Lot 1 , Lot 2
The project will be located on privately owned lands and land administered by the Bureau of Land
Management (BLM) Grand Junction Field Office (GJFO). Black Hills will remove the existing
surface pipeline and install a new segment of 8-inch buried pipeline following a new alignment to
tie-in with the existing pipeline.
3.1.1 Ownerls). Landowner and property owner information is available in Table l.
Table 1. Land Owner Contact Information
Land Owner Garfield County
Parcel ID Address
BLM 241108200954 23OO RIVER FRONTAGE ROAD
SILT, CO 81652
JOJO PROPERTIES LLC 241 10820001 I PO BOX 1926
RIFLE, CO 8I650
LARAMIE ENERGY LLC 21692t400026 I4OI ITTH STREET SUITE I4OO
DENVER, CO 80202
Mahogany Energy Resources 216736200023 17520 S MCCARRON ROAD
HOMER GLEN, IL 60491
WestWater Engineering Page3 of18 February 2021
3.1.2 Receivins Waters. Runoff in the project vicinity occurs as sheet flow ancl semi-
conccntratcd flow in the ephemeral drainages discharging to Conn Creek approximately 450 fèet
east ofthe project areaat the project's nearest point.
3.1.3 Climate Data. The nearest formal weather station to the project is located in Grand
Junction, CO approximately 28 miles southwest of the project area. According to U.S. Climate
Data, the average annual precipitationisg.42 inches and average annual snowfall is 19 inches
(U.S. Climate Data 2021). The average high temperature is 66 degrees Fahrenheit and the average
annual low temperature is 40 degrees Fahrenheit. Normal daytime temperatures range from about
93oF during summer to 17oF during winter (U.S. Climate Data 2021).
3.2 Site Description
3.2.1 Land Use. Current land use sun"ounding the project includes non-irrigated pasturelands,
rangeland, oil & gas development, and wildlife use.
3.2.2 Toooeraphy. The proposed pipeline re-route will descend from the top of Long Point to
the Conn Creek Valley Floor where the pipeline will tie in with the existing buried pipeline in
Section 8, Township 7 South, Range 97 West. Approximately 1.5 miles of the alignment will be
located on top of the Roan Plateau along gently rolling hills. The pipeline route from Long Point
to the bottom of Conn Creek will be located on very steep slopes of the Roan Plateau.
3.2.3 Existing Veeetation.
There are four main vegetation community types present in the proje ct area: oakbrush shrublands,
mountain shrublands, sagebrush shrublands, and pinyon-juniper woodlands. The oakbrush
shrublands are composecl primarily of Gambel oak (Qtrercus gambelii) with an understory of
native grasses and forbs and occupy the top of the Roan Plateau. Also on top of the plateau, the
mountain shrublands are composed primarily of Saskatoon serviceberry (Amelanchier alnifolia)
intermixed with mountain snowbercy (Symphoricarpos oreophilus), Gambel oak (Quercus
gambelii), and Wyoming big sagebrush (Artemisia tridentata ssp. wyomingensis). Sparse
sagebrush shrublands and widely spaced pinyon-juniper woodlands occupy the steep slopes
descending from Long Point and are composed primarily of Wyoming sagebrush and Utah juniper
(Juniperus osteosperma) intermixed with mountain snowberry (Symphoricarpos oreophilus),
scattered shadscale saltbush (Atriplex confertiþlia), and native perennial grasses and forbs. Along
the valley bottom of Conn Creek, the pipeline alignment will be located in Basin big sagebrush
shrublands intermixed with greasewood. Percent vegetation cover will be measured in the spring
of 2021prior to project construction to determine the baseline vegetation density.
3.2.4 Existins S oil Classification.Soils in thc survcy arca vary and arc gcncrally dcrived from
on-site sandstone and shale (Table 2) (Natural Resources Conservation Service INRCS] 2021).
The structural and nonstructural control measures outlined in this SWMP are specifically designed
to minimize erosion and sediment transport associated with these soil types.
WestWater Engineering Page 4 of 18 February 2021
Table 2. Soils found in the project area.
3.3 Schedule of Construction Activities
The purpose of this project is to bury the existing top-of-ground pipe segment to ensure the safety
and integrity of the line, as encouraged by agreements between Rocky Mountain Natural Gas and
Colorado Public Utilities Commission (PUC) and as required by the Span and Exposed Pipe
Replacement program under 49 CFR, Part 192, Subpart O.
Construction activities covered by the DeBeque Legoff Pipeline Replacement Project SWMP are
expected to commence on the first phase of pipeline construction in May of 2021 and last until
September 30,2021. Revegetation efforts will immediately follow and willbe completed during
the fall of 2021.
Construction activities that may affect Stormwater from an erosion and sediment transport
perspective include:
Removalof vegetation
Displacement of rocks/boulders
Removal and storage of topsoil
Trenching and storage of subsoils
Construction equipment operation on the ROW
Maintenance and fueling
Herbicide application to control noxious weeds
a
Map
Unit
Symbol
Soil Series Description
7
Biedsaw-Sunup gravelly loams, 10
to 40 percent slopes
Not prime farmland. This soil type is well drained
with a very high runoff class, and typically occurs
along mountains and ridges.
44
Happle very channery sandy loam, 3
to l2 percent slopes
Not prime farmland. This soiltype is well drained
with a medium runoff class, and occurs along
alluvial fans.
46
Happle-Rock outcrop association, 25
to 65 percent slopes
Not prime farmland. This soiltype is well drained
with a high runoffclass, and occurs along canyons
and mountains.
55
Parachute-lrigul complex, 5 to 30
percent slopes
Not prime farmland. This soiltype is well drained
with a high runoff class, and occurs on mountains,
56
Parachute-lri gul-Rhone association,
25 to 50 percent slopes
Not prime farmland. This soil type is well drained
with a high runoff class, and occurs on mountains.
WestWater E,ngi neering Page 5 of l8 February 2021
The construction site will be cleared and grubbed, as necessary. Topsoil and vegetation will he
salvaged and stockpiled as shown in Appendix A, Figurcs 2a through 2f. Once the ltOW has been
cleared and grubbed, the alignment will then be leveled and cleared to provide a working surface
for the equipment and material. Trench excavation will then begin and excavated sub-soils will
be stored along the non-working side of the trench. The trench will be excavated to a depth of
approximately 48-inches. Lengths of pipe will be staged and strung end to end along the working
side of the trench. The pipeline segments would than be welded together and lowered into the
tretrch. Upott completion of the pipeline installation the trench would be backfîlled and the pipeline
ROW would be recontoured and graded. Portions of the construction site will be located on steep
slopes which will necessitate aggressive soil control measures such as surface roughening and
water bars. In addition to strategically placed control measures, the soil surface will be roughened
prior to reseeding to create micro-topography that will promote stormwater retention and
successfttl revegetation efforts. Soil samples may be collected at the site to determine if soil
amendments will be necessary. Additional control measures may be installed depending on site
conditions.
SECTION 4
POTF:,NTIAI, POI,UTION SOURCES
All control measures implemented throughout the project are intended to mitigate for the release
of sediment and all other potentialpollution sources.
4.1 Sediment
The most common source of pollution from construction is sediment, which can be transported off
the work site with stormwater run-off, snow melt, or vehicle tracking, and ultimately impact the
water quality of a receiving stream. Clearing, grading, trench excavation, and otherwise altering
previously undisturbed land has the potential to increase the rate of soil erosion compared to pre-
disturbed rates. Soil storage areas that are left unprotected during project construction also have
the potential to incrcasc scdimcntation into downstream waterways.
4.2 Construction Activities and Support Facilities
4.2.1 Fuel and Lubricants. Petroleum products are a potential stormwater pollutant. These
products are used in construction activities to power or lubricate equipment and include products
such as fuel, gear oil, hydraulic oil, motor oil, brake fluid, and grease. No extremely hazardous
tnaterials in excess of thresholtl quantities will be used during construction of the pipeline. While
commercial preparations of fuels and lubricants proposed for use may contain some hazardous
constituents, they would be stored, used and transported in a manner consistent with applicable
laws, antl the generation of hazardous wastes would not be anticipated.
WestWater Engineering Page 6 of l8 February 2021
.Notification procedures to be used in the event of a material release or accident. At a
minimum, the field supervisor and a Black Hills Environmental Professional should be
notified. Depending on the nature of the spill and the material involved, CDPHE,
downstream water users, or other agencies may need to be notified. The CDPHE Water
Quality Control Division toll-free 24-hour environmental emergency spill reporting
line is l-877 -51 8-5608.
4.2.2 Portable Toilets. Trash and Debris. Construction related activities will generate some solid
and sanitary wastes. Solid waste generated from land clearing operations or lay-down areas,
residue from equipment cleaning and maintenance, and trash and sanitary waste from human
activities present potential pollution sources within the construction site.
4.3 Other Pollutant Sources
The project involves construction of an 8-inch buried pipeline using standard pipeline construction
practices. The project does not involve the loading or unloading of material; outdoor storage of
erodible building materials, fertilizers, chemicals, etc.; significant dust or particulate generating
processes (e.g. saw cutting material); routine maintenance activities involving fertilizers,
pesticides, herbicides, or detergents; concrete truck and equipment washout; or the dedicated
asphalt, concrete batch plants, and masonry mixing stations. These pollutant sources listed by the
CDPHE in the general permit for stormwater discharges associated with construction activity do
not apply to this project.
SECTION 5
DESCRIPTION OF SOIL CONTROL MEASURES
The objectives of erosion and sediment controls are to minimize the release of sediments, and any
other potential pollutants, by Stormwater run-off. This can be accomplished through the use of
structural and/or nonstructural controls. This section describes erosion and sediment controls to
be used during construction to minimize possible pollutant impacts to Stormwater run-off. Control
measures that will be used during construction are depicted in Appendix A, Figures A-2ato A-2f.
Descriptions and installation details of all control measures in use with this project are provided in
Appendix D.
5.1 Structural Practices for Erosion and Sediment Control
Structural practices implemented to provide for erosion and sediment control can include
WestWater Engineering Page7ofl8 February 2021
temporary and permanent control measures. Temporary structural control measures include, but
are not necessarily limited to, straw bale barriers or check dams, straw fiher rolls or wattles, topsoil
berms, erosion control blankcts, and vegetation windrow. Straw tiber rolls or wattles will be
utilized at the outfall of all sediment basins. Topsoil will be stockpiled in a continuous berm on
the upgradient edge of the ROW, just inside a windrow of the cleared vegetation providing a dual
function for stockpiling topsoil and providing a barrier for run-off leaving the ROW. Along the
portions of the ROW on the working surface perimeter, a minimum 18" high dirt berm will be
installed to prevent stormwater from leaving the site. Check dams will not be applicable to this
project unless deemed necessary in problematic areas revealed after a significant precipitation
event. When applicable, temporary control measures will be implemented during the construction
and interim stabilization phases. All temporary control measures will be removed and disposed of
upon final stabilization.
Permanent structural control measures will include, but are not necessarily limited to drainage dips
leading across the ROW to sediment basins at the edge of disturbance, earthen berms, diversion
ditches, sediment traps, culvert inlet/outlet protection, and rock check dams, and other rock
armoring. A description of each structural practice for erosion control is presented in Table 3.
Table 3. Structural Practices for Erosion and Sediment Control
Structural Practice Description Phase of Proiect
Armored Run-Downs
Installed to minimize the erosion potential of
the underlying substrate. For use at inlet/outlet
protection associated with sediment traps and
ditches.
Construction,
Interim
Stabilization, and
Final Stabilization
Culvert Inlet/Outlet
Protection
Inlets and outlets will be protected to prevent
sediment buildup within the culvert thus
maintaining culveft functional ity. Temporary
protection may include installation of straw
bales or wattles around the inlet/outlet. For
permanent protection, inlets/outlets shall be
protected via rock armoring. Accumulated
sediment will be removed, as needed, to ensure
that there is no blockage of the culvert.
Construction,
Interim
Stabilization, and
Final Stabilization
Diversion
Berm/Channel
Used to direct run-on or runoff stormwater
away from construction activity.
Construction,
Interim
Stabilization, and
Final Stabilization
Sediment Traps
Installed to trap sediment that has been
transported from other erosion control methods
including, but not limited to: berms, diversion
ditches. bar ditches. and drainaee dips.
Construction,
Interim
Stabilization, and
Final Stabilization
Straw Bale and Rock
Check Dams
Used in areas of concentrated flow on the site
The pr.rrpose is to reduce the velocity of water
to allow sediment to settle, while allowine
Construction,
Interim
Stabilization. and
WestWater Engineering Page I of l8 Febrwry 2021
Structural Practice Descrintion Phase of Proiect
clean water to continue through the site.Final Stabilization
Straw Bale Barriers
Used to intercept and direct sheet flows. The
barrier reduces the runoff velocity and filters
sediment from stormwater as it moves through
the barrier. The barrier may be used to protect
against erosion.
Construction and
Interim
Stabilization
Straw Wattles/Straw
Rolls
Temporarily stabilize slopes. Install
perpendicular to water movement, parallel to
the slope contour. Rolls should fit snugly
asainst the soil surface.
Construction and
Interim
Stabilization
Water Bars
Installed to direct runoff and run-on
stormwater away from construction activity.
The bars slow the velocity of water, and direct
water into a sediment trap or other erosion
control method designed to capture sediment
while allowing water to continue through.
Construction,
Interim
Stabilization, and
Final Stabilization
Erosion Control
Blanket
Stabilizes soil from run-off to allow vegetation
to establish. Made from biodegradable
materials. For use along slopes, stream banks,
and wetland edges.
Interim and Final
Stabilization
Tracking Control
Stabilizes and limits points of entrance/exit to
the construction site. Helps reduce andlor
prevent the tracking of mud and dirt onto
roadways by construction associated vehicles
and equipment.
Construction Phase
Table 3. Structural Practices for Erosion and Sediment Control
5.2 Non-Structural Practices for Brosion and Sediment Control
Non-structural practices implemented for erosion and sediment control will consist of permanent
control measures that will be utilized during distinct project phases from construction to final
stabilization. Non-structural controls typically include, but are not necessarily limited to surface
roughening, vegetative buffers, mulching, seeding of disturbed areas, and dust control. A
description of non-structural practices for erosion and sediment control are provided in Table 4.
See the accompanying DeBeque Legoff Reclamation Plan (WestWater 2020) for reclamation
details.
Table 4. Non-Structural Practices for Erosion and Sediment Control
Non-Structural
Practice
Description Phase ofProject
Vegetative Buffers Areas of existing vegetation that are utilized as
an erosion control practice. Vegetative buffers
Construction,
Interim
WestWater Engineering Page9of18 February 2021
Non-Structural
Practice
Description Phase ofProject
are located along the eclges of the project
disturbance and provide a filtering effect by
minimizing velocity of stormwater runoff
enough to allow the sediment to settle out
while allowing clean water to continue along
its natural drainage path.
Stabilization, and
Final StabilizaTion
Seeding of Disturbecl
Areas
Areas of disturbance will be seeded with an
appropriate seecl mix using one or more of the
following methods: hand broadcast, hydro-
seedins. and drill seeding.
Interim ancl Final
Stabilization
Mulching
Uscd to aid in seedling germination and
establishment. If mulch is used it will be
crimped into the soilto provide additional soil
stabilization.
Interim and Final
Stabilization
Surface Roughcning
Used in conjunction with grading to increase
relief along the soil surface creating horizontal
grooves by stair stepping (running parallelto
the contour of the land) or using construction
cquipmcnt to track thc surface perpendicular to
the contour of the land. Soil roughening
recluces runoff velocity, increases infi ltration,
reduces erosion, traps sediment, and prepares
soil for seeding.
Construction,
Interim
Stabilization, and
Final Stabilization
Table 4. Non-Structural Practices for Erosion and Sediment Control
SECTION 6
SEQUENCE OF CONTROL MEASURE IMPLEMENTATION
The pipeline construction project will consist of a construction phase, interim reclamation, and
final stabilization phase. The following sections outline specifications of each phase.
6.1 Construction
The construction phase of the project is comprised of clearing the ROW for pipeline construction,
trenching, backfilling and general grading. Temporary control measures will be installed prior to
project construction activities. Vegetation will be removed from the ROW and placed down
gradient. Spoils piles from trenching will be placed upgradient of the trench when possible and
topsoil will be segregated from sub-soils and placed upgradient of the vegetation huffer. l)iversion
ditches attd bertns will be installed along the ROW when possible. Control measures will be
WestWater Engineering Page 10 of 18 February 202 I
routinely inspected to ensure performance (Appendix E).
6.2 Interim Stabilization
Interim reclamation is the phase of the project between construction and final stabilization. The
project will enter into interim stabilization when construction is complete, disturbed areas have
been seeded, and permanent control measures have been installed. Some temporary control
measures that were implemented during the construction phase will continue to be maintained
during the interim stabilization phase. The project will remain in interim stabilization until
disturbed areas have been reclaimed with a uniform cover of at least 7ÙYo of pre-disturbance levels,
or equivalent permanent, physical erosion reduction methods have been employed.
The following actions will be taken during interim stabilization:
o The ROW will be re-graded to original contours;
o Topsoil will be redistributed across the surface of the ROW;
¡ The disturbed ROW will be seeded once construction activities are complete. Seed mix
may vary with location, surface ownership, and usage, and will generally match the
surrounding vegetation. Seed will be applied using one or more of the following methods:
hand broadcast, drill seeder, and hydro-mulch;
r Vegetative material replacement/removal: Based upon landowner requirements stripped
vegetation may be hauled ofÊsite or redistributed along the disturbed ROW;
¡ Mulching: when applicable, all disturbed areas to be reclaimed will be mulched post
seeding. A certified weed-free straw mulch will be crimped into the surface. A hydromulch
or other spray on method may also be utilized on steep slopes; and
. Weed control: Disturbed areas to be reclaimed by seeding will be added to Black Hills'
weed management program.
The anticipated date of interim stabilization completion for the pipeline ROW is September 30,
2021 after the trench has been backfilled and returned to original grade. Seed mixes have been
selected based on existing vegetation communities and elevation. Appropriate seed mixes to be
applied to this project are shown in Appendix F. Control measures that are anticipated to be
implemented during interim and final stabilization are depicted in Appendix B, Figures B-2a to B-
2f.
6.3 Final Stabilization
Areas which have been disturbed are considered to be stabilized when a uniform vegetative cover
with an individual plant density of at leastT}Yo of the pre-disturbed levels has been established, or
when an equivalent permanent, physical erosion reduction method is in place.
Disturbed areas will remain in interim stabilization status until fìnal stabilization is achieved.
Stormwater compliance inspections will be performed at required intervals until final stabilization
is reached. Any temporary control measures will be removed and disposed of in accordance with
Vy'estVy'ater Engineering Page l1 of18 February 2021
applicable rules and regulations.
When final stabilization is achicvcd and all temporary control measures have been removed, a
Final Stabilization Certifrcation for the site will be completed by the designated stormwater
inspector. When the site has achieved final stabilization, Black Hills will apply for an Inactivation
Notice to terminate the DeBeque Legoff Pipeline Replacement Project and this Stormwater
Management Plan.
SECTION 7
MATERIAI,S HANI)LING AND SPILL PREVENTION
7.1 Waste Management and Disposal
Construction activities mentioned in the SWMP will generate various waste materials during the
course of construction. These wastes typically include but are not necessarily limited to:
.Trash and debris from construction materials and workers
These wastes will be managed so as not to contribute to Stormwater pollution. Construction trash
and debris will be collected in appropriate containers and hauled off-site for disposal in suitable
landfills or facilities accepting such wastes.
7.2 Fuels and Materials Management
7.2.1 Petroleum Products. Petroleum products will only be present at the construction site when
construction equipment is present. The products will only be present within the mechanics of the
equipment or during equipment fueling or minor repairs. Petroleum products include but are not
necessarily limited to gasoline and diesel fuel, lubricant and hydraulic oils, and motor oil. Routine
daily inspections will be conducted to identify any potential equipment leaks. No additional
petroleum products will be stored on the project site.
Pollutants from petroleum products used during construction activities adhere easily to soil
particles and other surfaces. In case of a spill or leak, soils contaminated with petroleum products
will be contained and removed to a proper disposal site. Proposed soil erosion and sediment
control practices will aid in retention of spills or leaks. Use of secondary containment and drip
pans will reduce the likelihood of spills or leaks contacting the ground. Proposed maintenance
and sale storage practices will reduce the chance of petroleum products contaminating the site.
Oily wastes such as crankcase oil, cans, rags, and paper containing oils will be placed in proper
receptacles and properly disposed ofor recycled.
.Spill cleanup ancl containment material, absorbent, shovels, etc. will be readily
WestWater h,ngineering Page 12 of 18 February 2021
available
.Spills will be immediately cleaned up and contaminated materials will be properly
stored on-site until they can be disposed of in accordance with applicable regulations
.Construction equipment will be regularly monitored for leaks and repaired or replaced
as necessary.
7.2.2 Chemical Product Managemgn| Various additional materials may be used and stored on-
site for use in construction, ranging from volatile solvents to soil conditioners. These materials
will be labeled and stored appropriately on-site, typically on pallets above the soil surface, and
managed to minimize spills and leaks. Storage areas will be inspected regularly, and any minor
spills, leaks, or damaged containers will be attended to.
7.2.3 Materials Management. The construction contractor will be responsible for maintaining
an on-site or suitable nearby staging area for construction equipment and materials storage, located
away from drainage ways, inlets, receiving waters, areas of high traffic, and areas susceptible to
flooding. These areas will be maintained with good housekeeping and will be inspected on a
routine basis for spills, leaks and potential contamination of the surrounding area.
Stock piles of soil and other erodible materials will be managed so that Stormwater does not wash
pollutants into waterways and wetlands. If left exposed for extended periods of time, the
unprotected surfaces of soil stockpiles may be sprayed with a soil binder or covered for added
protection from wind and precipitation erosion.
7.3 Construction Site Housekeeping and Maintenance
Housekeeping will consist of neat and orderly storage of materials and containerized fluids.
Wastes will be temporarily stored in sealed, labeled containers and regularly collected and
disposed of at appropriate off-site facilities. In the event that a spill occurs, prompt cleanup is
required to minimize any commingling of waste materials with Stormwater run-off.
On-site maintenance of construction equipment will be limited to routine fueling and lubrication.
Drip pans will be used during routine fueling and maintenance to contain spills or leaks. Any
waste product from maintenance will be containerized and transported off-site for disposal or
recycling. There will be no major equipment overhauls conducted on-site. Equipment will be
transported off-site when major overhauls are necessary.
Cleanup of trash and discarded materials will be conducted priorto the end of each work day to
the extent practicable. Cleanup will consist of patrolling the road way, access areas, and other
work area to pick up trash, scraps, debris, other discarded material such as lunch wrappings and
beverage containers, in addition to any potentially contaminated soil. Upon collection, these waste
materials will be disposed of properly.
WestWater Engineering Page 13 of 18 February 2027
SECTION 8
INSPECTION AND MATN'I'I'N AN CIT ITROCITD U RJ',S
8.1 Inspections
To meet requirements of the General Permit, inspection and maintenance of erosion and sediment
contnrls musl occur during the project. Continued inspection and maintenance is required for
specific structures after construction is completed. The inspection program and procedures are
listed below.
l) A qualilted stormwater manager familiar with the SWMP and control measures will
conduct the inspections.
2) Inspections will cover the following items within the construction site ROW:
a. Disturbed areas without stabilization
b. All structural, non-structural, temporary, and permanent control measures
c. Materials storage areas
d. Surface water diversions
e. Down gradient areas
f. Access roads
g. Site vehicle ingress and egress locations
h. Construction site perimeter
i. Material and waste storage areas exposed to precipitation
j. Locations where stormwater has the potential to discharge offsite
3) Inspection frequency:
a. During construction, at least once every 14 calendar days, and after a signif,rcant
precipitation event or snow melt event that has potential of causing erosion or sediment
release.
WestWater Engineering Page 14 of 18 February 2021
b. During interim reclamation, at least once every 30 calendar days.
4) The inspection sheets will be maintained at the construction field office, Black Hills office,
and WestWater's office.
5) Water quality will be visually assessed for all receiving streams and discharge areas during
each inspection.
6) Disturbed areas and material storage areas that are exposed to precipitation will be
inspected for evidence of pollutants entering nearby drainages.
7) Roads used for vehicle access will be inspected for evidence of off-site sediment transport
8) Following each inspection, the SWMP will be modified as necessary to include additional
controls designed to correct identified problems. Necessary revisions to the SWMP will
be made within 3 days of the inspection.
9) An inspection report summarizing the scope of the inspection, the name of the person
conducting the inspection, the date of the inspection, and observations relating to proper
implementation will be prepared. Inspection reports will be retained for at least three (3)
years from the date of Final Stabilization.
10) Actions taken to modify any Stormwater control measure will be recorded and maintained
with the SWMP.
l1) If no deficiencies are found during the inspection, the report will contain certification that
the site is in compliance with the SWMP.
8.2 Maintenance
Maintenance will include prompt repairs and/or adjustments to any erosion and sediment control
structures that are deteriorating or found to be performing inadequately. Control Measure
conditions and dates of Control Measure maintenance will be documented within the Stormwater
inspection checklists. Repairs are to be made as soon as possible and prior to the next anticipated
storm or snow melt event.
Completed inspection forms will be maintained on Black Hills and WestWater electronic files
and will include information such as dates of maintenance or modifications to existing Control
measures, installation of new Control measures, and any site housekeeping requirements, and
general comments. Refer to Appendix D for an example of the Stormwater Inspection Form.
WestWater Engineering Page 15 of18 February 2021
SECTION 9
N ON -S'I'ORMWATER DISCHARGES
No non-Stormwater discharges in the vicinity of the project are not anticipated; however, in the
event that allowable non-stromwater discharges occur during project construction the following
table (Table 3) would be updated as needed to document the discharge and the appropriate
control measure.
Table 3. Allowable Non-Stormwater
ln the event that uncontaminated groundwater surfaces during project construction; dewatering
of the trench would occur and the water would be discharged to land following the guidance and
provisions under the Low Risk Discharge Guidance (CDPHE 2017). If gror.rndwater does not
meet the water quality standards for receiving waters a separate CDPS Dewatering Permit would
be obtained by Black Hills from CDPHE.
The following sources of non-stormwater discharges do not apply to this project:
. Discharges to the ground of concrete washout water associated with the washing of
concrete tools and concrete mixer chutes.
. Discharges of landscape irrigation retum flow.
o Concrete Saw Water.
Discharge Description Location Control Measure
Dewatering
Uncontaminated Spring
Emergency Fire Fighting
WestWater h,ngineering Page 16 of 18 February 2027
sacTIoN l0
0WNEIUAPPLICANT CgRTIFICATTON
f0.1 Owner/ApplicantCertification
This is to certify under penalty of law that this document and all attachments were prepared
under my direction or supervision in accordance with a system designed to assure that qualified
personnel properly gather and evaluate the information submitted. Based on my inquiry of the
person or persons who manage the system, or those persons directly responsible for gathering the
information, the information submitted is, to the best of my knowledge and beliet true, accurate,
and complete. I am a\ryare that there are significant penalties for submitting false information,
including
Signature
Name :
Title:
Date:
potential fines and im for knowin g violations.
Operator Name:
Operator Address:
O,o.3 d,\ær
Éq \.c¡>¡\nrrcfrc-\ I co€CP¡\ o.nc*Â
3, /b/ z\
1rì,lrs Ercrrql
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Cr^<-\¿:nrnr, tNV S 20 o 1
Site Name and Location: DeBeque Lesoff Pipeline Replacement Proiect
SWMP Prepared By:WestWater Engineering
2516 Foresight Circle #l
Grand Junction, Colorado 81505
(97 0) 241 -7 076 telephone
WestWater Engineering Page 17 of l8 February 2021
SECTION 11
RE,FERENCES
CDPHE. 2021. Stormwater discharges Associated with Construction Activity, Stormwater
Management Plan Preparation Guidance, Revised October,20l8. Available online at:
https://www.colorado.eov/cdphe/wqcd. Colorado Department of Public Health and
Environment. Water Quality Control Division.
CDPHE. 2017. Low Risk Discharge Guridance, Discharges of Uncontaminated Groundwater to
Land, Revised Aug. 8,2017. Available online at:
https://www.colorado.sov/pacif,ic/sites/default/files/WO%20LOW%2ORISK%20GW.pdf
. Colorado Dcpartmcnt of Hcalth and Environment. Water Quality Control Division.
WestWater.2020. DeBeque 8-inch Legoff Pipeline Replacement Project Reclamation,
Revegetation, and Soils Plan. WestWater Engineering.2020. Grand Junction, Colorado.
NRCS.2021. Web Soil Survey. U. S. Department of Agriculture, NaturalResources
Conservation Service. Available online at: http://websoilsurvey.nrcs.usda.gov/.
U.S. Climate Data. 2021. U.S. Climate Data. Available online at: http://www.usclimatedata.com,
accessed on February 10,2021.
WestWater Engineering Page 18 of l8 February 2021
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