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February 23, 2012
ENTERPRISE PRODUCTS PARTNERS L.P.
ENTERPRISE PRODUCTS HOLDINGS LLC
(General Partner)
Colorado Department of Public Health and Environment
WQCD-P-B2
Attn: Industrial Permits Unit
4300 Cherry Creek Drive South
Denver, CO 80246-1530
RE: Construction Dewatering Permit Application
Western Expansion II Pipeline Project
Rio Blanco, Mesa, and Garfield Counties, Colorado
Dear Sir/Madam:
ENTERPRISE PRODUCTS OPERATING LLC
Federal Express
Mid-America Pipeline Company, LLC (MAPL) is planning to construct a loop pipeline project that will
loop the existing MAPL pipeline, an approximate 96 mile long, 16 -inch natural gas liquids pipeline
across the western portions of Mesa, Rio Blanco, and Garfield Counties, Colorado. The pipeline will
cross Evacuation Creek, Salt Creek, and Cisco Wash (perennial stream) and numerous ephemeral
channels. Should groundwater accumulate within the construction trench during pipeline construction,
the trench will be dewatered into a sediment bag at an approximate rate of 300 gallons per minute (gpm).
Streams will typically be crossed via open -cut as there is insufficient working space within the right-of-
way,
ight-ofway, and between other pipelines and the mountain to safely directionally and functionally drill most
streams. A dam -and -pump or flume system will be used to convey flows at wet stream crossings during
construction. Dewatering anticipated groundwater intrusion will last up to 6 months.
HRL Compliance Solutions, Inc. (HRL) has been contracted to provide environmental oversight for the
PCP Loop Pipeline. An environmental inspector will be present during dewatering. The inspector will
ensure intake and discharge hoses are properly protected, water is properly discharged through a
sediment bag, and will collect necessary water samples. The environmental inspector will direct the
installation of geotextile fabric and/or straw wattles to minimize erosion as the water leaves the project
area.
Should you have questions or need additional information, please contact our Senior Field Environmental
Engineer, Mike Mungas at 713-381-7661 or our Senior Environmental Scientist, Jimmy White at 713-
381-1785.
Thank you,
Christopher Benton
Manager — Environmental Permitting
/bjm
enclosures
P. O. BOX 4324
HOUSTON. TX 77210-4324
713.381.6500
1100 LOUISIANA STREET
HOUSTON, TX 77002-5227
www.epplp.corn
STATE OF COLORADO
Dedicated to protecting and improving the health and environment of the people a Colorado
4300 Cherry Creek Dr S.
Dever, Colorado 80246-1530
Phone (303) 692-2000
TDD Line (303) 691-7700
Located in Glendale. Colorado
nnprlwww.c dphe-state.co.us
Colorado Deparunent
of Public Health
and Environment
COLORADO DISCHARGE PERMIT SYSTEM (COPS)
CONSTRUCTION DEWATERING INDUSTRIAL WASTEWATER DISCHARGE APPLICATION
PHOTO COPIES, FAXED COPIES, PDF COPIES OR EMAILS WILL NOT BE ACCEPTED.
For Agency Use Only
Permit Number Assigned
COG07-
Date Received /
Month Day Year
Please print or type. Original signatures are required. All items must be completed accurately and in their entirety
for the application to be deemed complete. Incomplete applications will not be processed until all information is received
which will ultimately delay the issuance of a permit. If more space is required to answer any question, please attach
additional sheets to the application form. Applications must be submitted by mail or hand delivered to:
Colorado Department of Public Health and Environment
Water Quality Control Division
4300 Cherry Creek Drive South
WQCD-P-B2
Denver, Colorado 80246-1530
Any additional information that you would like the Division to consider in developing the permit should be provided with
the application. Examples include effluent data and/or modeling and planned pollutant removal strategies.
PERMIT INFORMATION
Reason for Application: p NEW CERT
❑ RENEW CERT EXISTING CERT #
Applicant is: 0 Property Owner ® Contractor/Operator
A. Contact Information
Permittee (If more than one please add additional pages)
Organization Formal Name: Mid-America Pipeline Company LLC
1. Permittee the person authorized to sign and certify the permit application. This person receives all permit
correspondences and is legally responsible for compliance with the permit.
Responsible Position (Title): Senior VP, Engineering
Currently Held By (Person): Leonard W. Mallett
Telephone No: 713-381-1785
email address lagwhite@eprod.com
Organization: Engineering
Mailing Address:
P.O. Box 4324
City: Houston State: TX Zip: 77210
This form must be signed by the Permittee to be considered complete.
Per Regulation 61: In all cases the permit application shall be signed as follows.
a) In the case of corporations, by a responsible corporate officer. For the purposes of this section, the
responsible corporate officer is responsible for the overall operation of the facility from which the discharge
described in the application originates.
b) In the case of a partnership, by a general partner.
c) In the case of a sole proprietorship, by the proprietor.
d) In the case of a municipal, state, or other public facility, by either a principal executive officer or ranking
elected official
Page 1 of 6 Revised April 2011
Industrial Wastewater Discharge Permit – Construction Dewatering www.coloradowaterpermits.com
2. DMR Cognizant Official (i.e. authorized agent)—the person or position authorized to sign and certify reports
required by permits including Discharge Monitoring Reports [DMR's], Annual Reports, Compliance Schedule
submittals, and other information requested by the Division. The Division will send pre-printed reports (e.g. DMR's) to
this person. If more than one, please add additional pages. fl Same as 1) Permittee
Responsible Position (Title): Environmental Scientist
Currently Held By (Person): Kay Lambert
Telephone No: 970-243-3271
Email address klambert@hrlcomp.com
Organization: Storm Water
Mailing Address: 744 Horizon Court, Suite 140
City: Grand Junction
State: CO
Zip: 81506
Per Regulation 61: All reports required by permits, and other information requested by the Division shall be
signed by the permittee or by a duly authorized representative of that person. A person is a duly authorized
representative only if:
(i) The authorization is made in writing by the permittee;
(ii) The authorization specifies either an individual or a position having responsibility for the overall operation of
the regulated facility or activity such as the position of plant manager, operator of a well or a well field,
superintendent, position of equivalent responsibility, or an individual or position having overall responsibility for
environmental matters for the company. {A duly authorized representative may thus be either a named
Individual or any individual occupying a named position); and
(iii) The written authorization is submitted to the Division.
3. Site/Local Contact—contact for questions regarding the facility & discharges authorized by this permit
El Same as Permittee—Item 1
Responsible Position (Title): Sr. Environmental Engineer
Currently Held By (Person): Mike Mungas
Telephone No: 713-381-7661
Email address mgmungas@eprod.com
Organization: Environmental Field Compliance
Mailing Address: 27991 Rio Blanco CR 5
City: RifleState: CO Zip: 81650
4. Operator in Responsible Charge j Same as Permittee—Item 1
Responsible Position (Title):
Currently Held By (Person):
Telephone No:
Email address
Organization:
Mailing Address:
City: State: Zip:
Certification Type Certification Number
Page 2 of 6 Revised April 2011
Industrial Wastewater Discharge Permit – Construction Dewatering
www.coloradowateroermits.com
5. Billing Contact (if different than the permittee)
Responsible Position (Title): Sr. Compliance Administrator
Currently Held By (Person): Shriver Nolan
Telephone No: 713-381-6595
Email address snolan@eprod.com
Organization: EHS84T
Mailing Address: P.O. Box 4324
City: Houston
6. Other Contact Types (check below)
State: TX
Zip: 77210
Add pages if necessary:
Responsible Position (Title):
Currently Held By (Person):
Telephone No:
Email address
Organization:
Mailing Address:
City: State: Zip:
Pretreatment Coordinator
Environmental Contact
Biosolids Responsible Party
Property Owner
Inspection Facility Contact
Consultant
Compliance Contact
B. Permitted Project/Facility Information
1. Project/Facility Name Western Expansion Project II Pipeline
Street Address or cross streets Unincorporated Garfield, Rio Blanco, Mesa counties
Stormwater MS4 Responsible
Person
Stormwater Authorized
Representative
Other
City, State and Zip Code County
Type of Facility Ownership
❑ City Govemment ❑■ Corporation 0 Private 0 Municipal or Water District
El State Government ❑ Mixed Ownership
2. Facility Latitude/Longitude—List the latitude and longitude of the excavation(s) resulting in the discharge(s). if the exact excavation
location(s) are not known, list the latitude and longitude of the center point of the construction project. If using the center point, be
sure to specify that it is the center point of construction activity.
001A Latitude 39 497°Center Longitude -108 . 957°Center (e.g., 39.703°, 104.933°')
degrees (to 3 decimal places) degrees (to 3 decimal places)
or
001A Latitude ° " Longitude ° " (e.g., 39°4611"N, 104°53'11"W)
degrees minutes seconds degrees minutes seconds
Horizontal Collection Method: lel GPS Unspecified ❑ interpolation Map — Map Scale Number
Reference Point: ❑ Project/Facility Entrance ❑■ Project/Facility Center/Centroid
Horizontal Accuracy Measure (WQCD Requires use of NAD83 Datum for all references)
(add additional pages if necessary)
Page 3 of 6 Revised April 2011
Industrial Wastewater Discharge Permit — Construction Dewatering www.coloradowaterpermits.com
B. Permitted Project/Facility Information Continued...
3. Facility Activity and Anticipated Schedule
Dewatering will begin (date) May 2012
Estimate how long dewatering will last: Years 0 Months 8
Days 11
Describe Activity e.g., highway bridge and tunnel construction, storm drain expansion, etc. and a description of activities
being performed, including construction schedule and months of operation. Specify source(s) of wastewater to be discharged
(i.e.well, foundation excavation, trenching, etc).
Activities will include the installation of a 16" Pipeline which will require trenching to a depth of 6 to 8 feet.
Construction is scheduled to begin in the spring of 2012. Construction of the ROW will be completed in the
spring of 2013.
4. Will the discharge go to a ditch or storm sewer? ❑ YES ®NO
• 0 YES, in the appropriate table below include the name of the ultimate receiving waters where the ditch or storm sewer
discharges,
• if YES, applicant must contact the owner of the ditch or storm sewer system (prior to discharging) to verify local ordinances
and to determine whether or not additional requirements are going to be imposed by the owner.
5. What type of discharge will this be? ❑ Defined Discharge Ill Undefined Discharge
A Defined Discharge is a discharge where the dewatering discharge locations and number of outfalls are known at the time of permit
application.
• If discharge is Defined — enter information in table C for Defined Discharges
An Undefined Discharge is a discharge where the exact dewatering discharge locations are unknown at the time of permit application.
The permit applicant must request the maximum number of potential outfalls (discharges) for the permitted facility.
• If discharge is Undefined — enter information in table D for Undefined Discharges
• Note: For undefined discharges, the site specific sampling and monitoring parameters will be selected based on the potential
pollutant sources found within the entire permitted project area and will be applied to all outfali(s), The most stringent of the
surface water limitations for each identified site specific parameter will be applied to each permitted outfall.
C. Information for Defined Discharge Location(s):
1. In the following table, include the following information for the discharge:
• include the number of discharge points (outfalls);
• Include the name of the receiving stream for each Outfall Number. If the discharge is to groundwater fill out discharge
information located next to GOO1A, G002A, etc—Please review the Division's Low Risk Discharge Guidance for
Discharges of Uncontaminated Groundwater to Land to determine If discharges to groundwater can be allowed under
the Guidance in lieu of obtaining a Construction Dewatering Permit.;
• Include the approximate location of the discharge (e.g.—idcharge will occur between 5th Avenue and 20th Avenue", or —lie
discharge will enter the storm sewer located al the comer of Speer Blvd and 8th Ave., which eventually flows to Cherry Creek" ;
• Include the maximum anticipated flow rate of the discharge; this can be based on pump capacity or other applicable measure.
OUTFALL
NUMBER
RECEIVING
STREAM(S)
APPROXIMATE LOCATION OF
DISCHARGE
MAXIMUM
FLOW RATE
LATITUDE/LONGITUDE
OF EACH DISCHARGE
OUTFALL
001A
002A
OUTFALL
NUMBER
GROUNDWATER
APPROXIMATE LOCATION OF
DISCHARGE
MAXIMUM
FLOW RATE
LATITUDE/LONGITUDE
OF EACH DISCHARGE
OUTFALL
GOO1A
GOO2A
Add more pages if necessary
Page 4 of 6 Revised April 2011
Industrial Wastewater Discharge Permit – Construction Dewatering www.coloradowaterpermits.com
D. Information for Undefined Discharge Location(s):
1. In the Following table include the following information for the discharge:
• Include the maximum number of potential outfalls (discharges) for the permitted facility/project;
• Include the maximum anticipated flow rate of the discharge; this can be based on pump capacity or other applicable measure;
• Include the name of all potential receiving streams for the entire project. If the discharge is to groundwater fill out discharge
information located next to GOO1A, GOO2A, etc.—Please review the Division's Low Risk Discharge Guidance for
Discharges of Uncontaminated Groundwater to Land to determine if discharges to groundwater can be allowed under
the Guidance in lieu of obtaining a Construction Dewatering Permit.
Note: For undefined discharges, the site specific sampling and monitoring parameters will be selected based on the potential
pollutant sources found within the entire permitted project area and will be applied to all outfall(s). The most stringent of the surface
water limitations for each identified site specific parameter will be applied to each permitted outfall.
OUTFALL
NUMBER
MAXIMUM FLOW
RATE (GPM)
POTENTIAL RECEIVING STREAM(S)
OO1A50/G'PM
Evacuation Creek, Davis Canyon, Whiskey Creek, West Evacuation Creek,
Trail Canyon, Wagon Canyon, West Salt Creek, South Canyon, Prairie
Canyon, McDonald Creek, Ultimately the White River, Colorado River.
002A
50/GPM
OUTFALL
NUMBER
MAXIMUM FLOW
RATE (GPM)
GROUNDWATER
GOO1A
GROUNDWATER
GOO2A
Add more pages if necessary
Sampling and Reporting Requirements for Defined and Undefined Discharges: Sampling must occur at every end -of -
pipe dewatering location (after going through your choice of BMP, if necessary). The permittee will be issued Discharge
Monitoring Report (DMR) forms for all requested outfall numbers. The permittee will be required to submit the DMR forms
for each requested outfall number monthly. For the outfall numbers(s) where no discharge occurred for a given month, the
permittee shall mark -No Discharge" on the DMR forms. The sampling results must be maintained by the permittee.
E. A Location Map for Defined and Undefined Discharges—designating the location of the project/facility, the location of the
discharge points)/outfalls—applicable only to defined discharges, and the receiving water(s) listed in Items C & D. A north
arrow shall be shown. This map must be on paper that can be folded to 81 x 11 inches.
F. A Legible Sketch of the Site
1. For Defined Discharges—A legible site sketch shall be submitted and must include: the location of the end of pipe
dewatering discharges at the site (e.g. where the flow will be discharged from the pump or BMP), the BMP(s) that will be
used to treat the discharge(s), and the sampling location(s). Refer to the instructions for additional guidance specific to
sites with multiple potential dewatering locations. This map must be on paper that can be folded to 8 '/2 x 11 inches.
OR
2. For Undefined Discharges—A legible site sketch shall be submitted and must include: the limits of the construction site
boundary to include street names (if applicable) or landmarks; description of the BMPs to be implemented; and location of
all potential receiving waters. This map must be on paper that can be folded to 8 1/2 x 11 inches.
G. Potential Groundwater Contamination
1. Is this operation located within one mile of a landfill, abandoned landfill or any mine or mill tailings? ❑ YES El NO
2. Has the dewatering discharge been analyzed for any parameters (pH, Oil and Grease, Metals, Organics, etc.)?
❑ YES ❑� NO If YES, please attach a copy of the sampling results.
Page 5 of 6 Revised April 2011
Industrial Wastewater Discharge Permit — Construction Dewatering www.coloradowaterpermits.com
Note to the applicant: Upon review of the application, the Division may request characterization of the water to be
discharged or analysis of certain parameters once the application has been reviewed. If the Division requests a
representative analysis of the water to be discharged, the application processing time may be lengthened_
3. Has the dewatering area been checked for possible groundwater contamination, such as plumes from leaking
underground stora ,4 tanks, mine tailings,etc —or- has a Phase 1 or Phase II been conducted on the site?
❑ YES RI NO
If YES, show location of the landfill, tailings, or possible groundwater contamination on the location map or general sketch
map. (Explain the location, extent of contamination, and possible effect on the groundwater pumping from this facility), Or
include a copy of the phase I or Phase II report. If the reports are not available, submit a summary of the results of the
report. If any sampling results are available, please attach a copy of all data.
Note: Contact Water Quality Control Division for the proper water chemistry parameters to report,
H. Additional Information
1. Does the applicant have a Stormwater Permit for Construction Activities? 0 YES ❑ NO ❑ PENDING
If Yes, Stormwater Construction Permit Number COR031399
WATER RIGHTS
The State Engineers Office (SEO) has indicated that any discharge that does not return water directly to surface
waters (i.e.land application, rapid infiltration basins, etc.) has the potential for material injury to a water right. As a
result, the SEO needs to determine that material injury to a water right will not occur from such activities. To make
this judgment, the SEO requests that a copy of all documentation demonstrating that the requirements of Colorado
water law have been met, be submitted to their office for review. The submittal should be made as soon as possible
to the following address:
Colorado Division of Water Resources
1313 Sherman Street, Room 818
Denver, Colorado 80203
Should there be any questions on the issue of water rights, the SECT can be contacted at (303) 866-3581. It is
important to understand that any CDPS permit issued by the Division does not constitute a water right. The issuance
of a CDPS permit does not negate the need to also have the necessary water rights in place. Additionally, if the
activity has an existing CDPS permit, there is no guarantee that the proper water rights are in place.
I. Required Certification Signature (Reg 61.4(1)(h)]
"I 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 belief, true, accurate and
complete. I am aware that there are significant penalties for submitting false information, including the possibility of fine
and imprisonment for knowing violations."
4 -understand that submittal of this application is for coverage under the State of Colorado General Permit for Discharges
Associated with Construction Dewatering for the entirety of the construction site/project described and applied for,
until such time as the application is amended or the certification is transferred, inactivated, or expired."
Signature (Legally Responsible Party)
Name (printed) Leonard W. Mallett
T
Date /-Z(. - % 2'
Title Sr. Vice President Engineering
Page 6 of 6 Revised April 2011
Industrial Wastewater Discharge Permit - Construction Dewaterinq www.coloradowaterpermits.com
Construction Dewatering Application Instructions
Item A- Contact Information.
Permit Applicant: Provide the company, corporation, or organization name
1. Permittee—Identify the title and name of the individual who is the legally responsible for the permit. The requirement of
who can be listed as the legally responsible party is included in the permit application. Include all requested information such
as the legal party's phone number, email address and mailing address. The individual identified here must sign the permit
application—Part I.
2. DMR Cognizant Official—Identify the title and individual's name
3. Site Contact- Identify the title and name of individual who is familiar with the day to day operations of the site. This
person will have first-hand information regarding the construction site, discharges occurring on site, and implementation of
BMPs.
4. Operator in Responsible Charge— Identify the title and individual's name if there is an Operator in Charge (Not
required)
5. Billing Contact— Identify the title and individual's name
6. Other Contacts - Identify the title and individual's name for any of the listed descriptions (Not required)
• Item B - Permitted Project/Facility Information
1. Name of the project/facility and location; include the name of the project/facility and include a description of the location
of the project/facility. The location may be a physical address or if the exact address is not available you may use an
approximate address such as: the nearest intersection or boundary streets including directional identifiers (e.g., -South of 14th
Avenue between Sherman St. and Logan St", or -West side of C.R. 21, 3.25 miles North of Hwy 10") or other identifying
information. A street name without an address, intersection, mile marker or other identifying information is not adequate.
2. Latitude/Longitude: For each excavation resulting in a discharge/outfall provide the Latitude/Longitude of the excavation.
If the exact location of the disturbance resulting in discharge is not known, provide the lat/long of the center point of the
construction activity. If identifying the center point of construction activity, make sure to write in -eenter point' next to
lat/long, The lat/long may be provided as decimal degrees or degrees, minutes, seconds format. This information can be
obtained from a variety of sources, including:
• Various Websites: http:.terraserver.microsoft.corn, http: geocoder.us., or
www.epa.gov tri reports/siting tool'index.htm
• U.S Geological Survey topographical map, available at area map stores
■ Surveyors or engineers for the construction project should have, or be able to calculate this information using a
Global Positioning System (GPS) unit
Specify whether the Latitude/Longitude information was collected either by using a GPS unit or through Map interpolation.
3. Facility Activity and Schedule: Include the anticipated start date of construction dewatering and provide the length of
time dewatering is anticipated to last. Provide a description of the general nature of the construction activities that are
requiring the dewatering. Also describe if the dewatering discharge is from an open excavation, such as a trench or foundation,
or from groundwater lowering wells. Examples of activity descriptions may include: open trench excavation for installation
of 4,000 linear feet of new water lines', or a series of shallow groundwater wells will be installed around the perimeter of the
construction site in order to lower the water table for construction of a new 5,000 square foot music shop—all wells will be
piped to one manifold resulting in one discharge location as indicated on our site sketch.
4. Discharges to ditches and storm sewers: Indicate by checking yes or no whether or not the immediate effluent will be
discharged to a ditch or storm sewer. If yes is marked, the applicant must contact the owner of the ditch or storm sewer
system prior to discharge to verify if the owner will allow a discharge to their system. The owner of the ditch/storm sewer
system may impose additional requirements. Storm drainage systems are typically owned by the city or county they are located
within, and therefore contacting the local city/'county is the appropriate place to start. If yes is marked, in Table C or Table D
be sure to include the location of the system and the ultimate receiving waters.
5. Defined or Undefined Discharge: Identify whether the applicant is applying for a Defined or Undefined discharge.
A Defined Discharge is a discharge where the dewatering discharge locations are known at the time of permit application.
If discharge is Defined - enter discharge information in Table C
Page 1 of 3—Revised April 2011
Industrial Wastewater Discharge Permit - Construction Dewatering www.coloradowaternermits.coni
An Undefined Discharge is a discharge where the exact dewatering discharge locations are unknown at the time of permit
application. The permit applicant must request the maximum number of potential outfalls (discharges) for the permitted
facility/project. If discharge is Undefined enter discharge information in Table D. The applicant must identify all
potential receiving streams for the entire project.
If the applicant is requesting undefined discharges, the site specific sampling and monitoring parameters will be selected
based on the potential pollutant sources found within the entire permitted project area and will be applied to all outfall(s).
The most stringent of the surface water limitations for each identified site specific parameter will be applied to each
permitted outfall. For example, if the undefined project includes installation of 8 miles of linear pipeline and leaking
underground storage tanks are expected to present in one section of the project, sampling and monitoring for Benzene,
Toluene, Ethyl benzene, and Xylenes will be required for all requested outfall(s).
• Item C- Information for Defined Discharge Location(s).
1. If Defined Discharge was marked in Section B.5 fill out Table C. Table C requires the following information:
• Number of discharge(s) (outfalls) --Identify the number of outfalls requested in Table C, this includes
discharges to surface water and groundwater. If there are more than two requested discharges to surface water,
attach a separate piece of paper including all requested information.
• Name of the receiving water(s)—If the discharge is to a ditch, identify the ditch and the ultimate receiving
water(s). Receiving waters are any waters of the state of Colorado, even if the natural drainage is usually dry. If
discharge is to groundwater, then fill out the appropriate information within Table C next to GOOIA, GOO1A. If
there are more than two discharges to groundwater, attach a separate piece of paper including all requested
information. If the applicant is requesting a discharge to groundwater, please review the Division's Low Risk
Discharge Guidance for Discharges of Uncontaminated Groundwater to Land.
http: /www.cdphe.state.co.us.wq/PermitsUnitipolicyguidancefactsheets policyandguidance/lowriskewdischargeto
land.pdf
Discharges performed in accordance with the Guidance for Discharges of Uncontaminated Groundwater to Land
do not require a separate construction dewatering permit.
• Narrative description of the approximate location of the discharge—Include a narrative description of the
discharge path. For example, -the dewatering discharge will enter the storm sewer located at 6th Avenue and
Sheridan which flows to Bear Creek" or -the dewatering will discharge to a field located at 66th and Farmers
Road with potential to runoff to Sanders Creek". If there is more than one known discharge, include this
descriptive information for all known discharges.
Maximum anticipated flow rate of the discharge (in gallons per minute)—Do not leave this section blank.
Include the maximum flow rate. You may estimate the flow contribution based on pump capacity if data is not
available.
• Latitude/Longitude of each discharge location—Include the latitude/longitude of each discharge location. See
the instructions B.2 for information on how to obtain latitude/longitude information.
• Item D- Information for Undefined Discharge Location(s).
1. If Undefined Discharge was marked in Section B.5 fill out Table D. Table D requires the flowing information:
• Maximum number of potential outfalls (discharges) for the permitted facility The applicant must identify the
maximum number of discharge locations (outfalls) for the entire construction project. If more than 5 outfalls are
requested, attach a separate piece of paper. DMRs will be sent to the permittee for each requested outfall.
• Maximum anticipated flow rate of the discharge (in gallons per minute)—Do not leave this section blank. The
flow rate may be estimated based on pump capacity if data is not available.
• Name(s) of the all potential receiving stream(s)—Identify al_ potential receiving streams for the entire project.
If the discharge is to groundwater then fill out the information in Table D next to GOO1A, GOO2A, etc.
Page 2 of 3 Revised April 2011
Industrial Wastewater Discharge Permit - Construction Dewatering www.coloradowaterDermits.com
• Item E - Location Map ---A location map is required to be submitted with all applications for both defined and undefined
discharges. The location map must include the location of the project/facility, the approximate location of each defined discharge
points, and the identified receiving water(s) listed in Items C or D. The map must have a minimum scale of 1:24000 (the scale of a
USGS 7.5 minute map). A legible submittal is required on paper that can be folded to8 I%: by 11 inches.
• Item F- Detailed Sketch of the Site—if a defined discharge is requested please submit a detailed site sketch which includes
the information requested in F.1. If an undefined discharge is requested please submit a detailed site sketch which includes
the information requested in F.2.
1. Detailed Sketch of the Site for Defined Discharges -- Must included a detailed sketch of the site showing the location of
end of pipe dewatering discharge(s) at the site—to include the flow line of each requested dewatering discharge. The
location and identification of the structural Best Management Practices (BMPs) used to treat the effluent prior to discharge.
The map shall also include the sampling locations for each requested outfall. A legible submittal is required on paper that
can be folded to 8 '/ by 11 inches.
2. Detailed Sketch of the Site for Undefined Discharges—This map must include the boundary of the construction site
where all potential dewatering could occur. The boundaries should include a northern boundary, an eastern boundary, a
southern boundary and a western boundary. The map must highlight or call out street names that border the project
boundary. If streets are not available, landmarks or mile -markers must be identified. The map must highlight all potential
receiving streams. The map must also include the identification of the structural BMPs used to treat the effluent prior to
discharge. A legible submittal is required on paper that can be folded to 8'A by 11 inches.
• Item G—Potential Groundwater Contamination
I. Dewatering on/near Landfills, Mines, or Mill Tailings: If the dewatering project is located within one mile of a landfill,
abandoned landfill, mine or mill tailings check yes. In addition, provide as much detail as possible regarding the extent of
contamination and attach all sampling data. Indicate the location of the landfill, mine, etc. on the Location and Detail Maps.
■ Contamination plume information can be obtained from the following source:
http:l.' www.cdnhe.state.co.tiOnn/HMSiteCover.him
htn/HMSiteCover.htni
2. Sampling Data: If any sampling data is available that is representative of the proposed discharge mark yes. Attach a copy
of all sampling results to the application. If the data was collected for another agency or private company include a brief
description as to why the data was collected.
3. Additional Sources of Contamination: Mark yes if the proposed construction site resulting in a dewatering discharge has
been evaluated for any additional sources of contamination. Additional sources include underground storage tanks, dry
cleaners, voluntary clean-up sites, etc. Also mark yes, if a Phase 1 or Phase II has been conducted on the property or adjacent
properties. Attach a copy of all records (phase 1, phase II, sampling efforts) that could help characterized the water to be
discharged.
■ Contamination plunge information can be obtained from the following source:
http://www.cdphe.state.co.us/hm/HMSiteCover.htm
• Item H—Additional Information
1. Stormwater Permit for Construction Activities: If the applicant holds a stormwater permit for construction related
activities (parcels > 1 acre) include the stormwater permit number. If you have applied, or intend to apply but have not yet
obtained coverage and your certification number, indicate -Pending" for this item.
• Item I—Signature Requirements—The permit applicant listed in Part A.1 must sign the permit application. Signatures must
meet the requirements established in Regulation 61.4(l)(h).
Page 3 of 3—Revised April 2011
Section D: Maximum number of outfalls for Dewatering
Outfall Number
Maximum flow rate
Potential Receiving streams
003A
50/GPM
Evacuation Creek, Davis Canyon, Whiskey
Creek, West Evacuation Creek, Trail Canyon,
Wagon Canyon, West Salt Creek, South
Canyon, Prairie Canyon, McDonald Creek,
Ultimately the White River, Colorado River.
004A
50/GPM
See Above,
005A
50/GPM
See Above.
006A
50/GPM
See Above.
007A
50/GPM
See Above.
008A
50/GPM
See Above.
009A
50/GPM
See Above.
010A
50/GPM
See Above.
011A
50/GPM
See Above.
012A
50/GPM
See Above.
013A
50/GPM
See Above.
014A
50/GPM
See Above.
015A
50/GPM
See Above.
016A
50/GPM
See Above.
017A
50/GPM
See Above.
018A
50/GPM
See Above.
019A
50/GPM
See Above.
020A
50/GPM
See Above.
021A
50/GPM
See Above.
022A
50/GPM
See Above.
023A
50/GPM
See Above,
024A
50/GPM
See Above.
025A
50/GPM
See Above.
026A
50/GPM
See Above.
027A
50/GPM
See Above.
028A
50/GPM
See Above.
029A
50/GPM
See Above.
030A
50/GPM
See Above.
031A
50/GPM
See Above.
032A
50/GPM
See Above.
033A
50/GPM
See Above.
034A
50/GPM
See Above.
035A
50/GPM
See Above.
036A
50/GPM
See Above.
037A
50/GPM
See Above.
038A
50/GPM
See Above,
039A
50/GPM
See Above.
040A
50/GPM
See Above.
r
Western Expansion 11 Pipeline
Colorado Dewatering Vicinity Map
WEP II Centerline Cobrado
WEP 11 Centertne Utah
Roads
Private
Bureau of Land Management
Indian Reservanon
Slate
US Forest Service
•
(itH
geotextile filter design,
application, and product
selection guide
Marine & Transportation Engineering
4TIV4
16"%pr
en Cate Nicolon
tJIRAFI
GEOTEXTILE FILTER DESIGN, APPLICATION, AND PRODUCT
SELECTION GUIDE
Drainage and Erosion Control Applications
TABLE OF
CONTENTS
Introduction and Explanation of the Problem 1
The Miraf"i• Solution 1
Systematic Design Approach 2
Ste
One:
Application Filter Requirements 3
Step Two:
Boundary Conditions 3
Step Three:
Soil Retention Requirements 4
Step Four:
Geotextile Permeability Requirements 5
Step Five:
Anti -Clogging Requirements 6
Step Six:
Survivability Requirements 7
Step Seven:
Durability Requirements 7
Geotextile Filter Selection Guide 8
Geotextile Filter Minimum Average
Physical Properties Chart 10
INTRODUCTION
AND EXPLANATION
THE PROBLEM
Drainage
OF Aggregate trench and blanket drains are commonly used to drain water from
surrounding soils or waste materials. These drains are typically installed less than
three feet deep. They may be at greater depths in situations where there is a need
to significantly lower the groundwater table or to drain leachate.
In loose or gap graded soils, the groundwater flow can carry soil particles
toward the drain. These migrating particles can clog drainage systems.
Erosion Control
Stone and concrete revetments are often used on waterway slopes to resist soil
erosion. These armored systems, when placed directly on the soil, have not suffi-
ciently prevented erosion. Fluctuating water levels cause seepage in and out of
embankment slopes resulting in the displacement of fine soil particles.
As with trench drains, these fine soil particles are carried away with receding
flows. This action eventually leads to undermining of the armor system.
Typical Solutions
Specially graded fill material which is intended to act as a soil filter is frequently
placed between the drain or revetment and the soil to be protected. This graded (i-
ter is often difficult to obtain, expensive to purchase, time consuming to install and
segregates during placement, thus compromising its filtration ability.
THE MIRAFI "
SOLUTION
Drainage
Erosion Control
Geotextile filters retain soil particles
while allowing seeping water to drain
freely. Fine soil particles are prevented
from clogging drainage systems,
Geotextile filters retain soil particles
while allowing water to pass freely.
Buildup of hydrostatic pressures in pro-
tected slopes is prevented, thus
enhancing slope stability.
Filtration geotextiles provide alternatives to graded filters.
Designing with Geotextile Filters
Geotextiles are frequently used in armored erosion control and drainage applica-
tions. Some of the most common applications include slopes, dam embank-
ments/spilllways, shorelines armored with riprap, flexible block mats and concrete
filled fabric formed systems. Drainage applications include pavement edge drains,
french drains, prefabricated drainage panels and leachate collection/leak detection
systems.
In al of the above applications, geotextiles are used to retain soil particles while
allowing liquid to pass freely. But the fact that geotextiles are widely used where
their primary function is filtration, there remains much confusion about proper filtra-
tion design procedures.
For this reason. Mirafi° commissioned Geosyntec Consultants, Inc. to
develop a generic Geotextile Filter Design Manual. The manual offers a systematic
approach to solving most common filtration design problems. It is available to prac-
ticing designers exclusively through Mirafi"'. This Geotextile Filter Design, Applica-
tion, and Product Selection Guide is excerpted from the manual.
1
SYSTEMATIC
Mechanisms of Filtration
A filter should prevent excessive migration of soil particles, while at the same
time allowing liquid to flow freely through the filter layer. Filtration is therefore
summarized by two seemingly conflicting requirements.
• The filter must retain soil, implying
that the size of filter pore spaces or
openings should be smaller than a
specified maximum value; and
• The filter must be permeable
enough to allow a relatively free flow
through it, Implying that the size of
Filter pore spaces and number of
openings should be larger than a
specified minimum value.
Geotextile Filter Requirements
Before the introduction of geotextiles, granular materials were widely used
as filters for geotechnical engineering applications. Drainage criteria for geotextile fil-
ters is largely derived from those for granular filters. The criteria for both are, therefore,
similar.
In addition to retention and permeability criteria, several other considerations are
required for geotextile filter design. Some considerations are noted below:
• Retention: Ensures that the geo-
textile openings are small enough to
prevent excessive migration of soil
particles.
• Permeability: Ensures that the geo-
textile is permeable enough to allow
liquids to pass through without caus-
ing significant upstream pressure
buildup.
• Anti -clogging: Ensures that the
geotextile has adequate openings,
preventing trapped soil from clog-
ging openings and affecting perme-
ability.
• Survivability: Ensures that the
geotextile is strong enough to
resist damage during installa-
tion.
• Durability: Ensures that the
geotextile is resilient to adverse
chemical, biological and ultravi-
olet (UV) light exposure for the
design life of the project.
The specified numerical criteria for geotextile filter requirements depends on the
application of the filter, filter boundary conditions, properties of the soil being filtered,
and construction methods used to install the filter. These factors are discussed in
the following step-by-step geotextile design methodology
DESIGN APPROACH
2
Design Methodology
The proposed design methodology represents years of research and experi-
ence in geotextile filtration design. The approach presents a logical progression
through seven steps.
Step: Define the Application Filter Requirements
Step 2: Define Boundary Conditions
Step 3: Determine Soil Retention Requirements
Step 4: Determine Permeability Requirements
Step 5: Determine Anti -Clogging Requirements
Step 6: Determine Survivability Requirements
Step 7: Determine Durability Requirements
STEP ONE:
DEFINE
APPLICATION
FILTER REQUIRE-
MENTS
STEP TWO:
Geotextile filters are used between the soil and drainage or armoring medium.
Typical drainage media include natural materials such as gravel and sand. as well
as geosynthetic materials such as geonets and cuspated drainage cores. Armoring
material is often riprap or concrete blocks. Often, an armoring system includes a
sand bedding layer beneath the surface armor. The armoring system can be con-
sidered to act as a "drain" for water seeping from the protected slope.
Identifying the Drainage Material
The drainage medium adjacent to the geotextile must be identified. The primary
reasons for this include:
• Large voids or high pore volume can
influence the selection of the reten-
tion criterion
• Sharp contact points such as highly
angular gravel or rock will influence
the geosynthetic survivability require-
ments.
Retention vs. Permeability Trade -Off
The drainage medium adjacent to the geotextile often affects the selection
of the retention criterion. Due to the conflicting nature of filter requirements, it
is necessary to decide whether retention or permeability is the favored filter charac-
teristic.
For example, a drainage material that has relatively little void volume
(i.e., a geonet or a wick drain) requires a high degree of retention from the filter.
Conversely, where the drainage material void volume is large (i.e., a gravel trench or
riprap layer), the permeability and anti -clogging criteria are favored.
DEFINE
BOUNDARY CONDI-
TIONS
Evaluate Confining Stress
The confining pressure is important for several reasons:
• High confining pressures tend to
increase the relative density of
coarse grained soil, increasing the
soil's resistance to particle move-
ment. This affects the selection of
retention criteria.
• High confining pressures decrease
the hydraulic conductivity of fine
grained soils. increasing the
potential for soil to intrude into,
or through, the geotextile filter.
• For all soil conditions, high
confining pressures increase the
potential for the geotextile and soil
mass to intrude into the flow paths.
This can reduce flow capacity within
the drainage media, especially when
geosynthetic drainage cores are
used.
Define Flow Conditions
Flow conditions can be either steady-state or dynamic. Defining these conditions
is important because the retention criteria for each is different. Examples of appli-
cations with steady-state flow conditions include standard dewatering drains. wall
drains and leachate collection drains. Inland waterways and shoreline protection
are typical examples of applications where waves or water currents cause dynamic
flow conditions.
3
STEP THREE:
DETERMINE
SOIL RETENTION
REQUIREMENTS
Charts 1 and 2 indicate the use of particle -size
parameters for determing retention criteria. These
charts show that the amount of gravel, sand, silt and
clay affects the retention criteria selection process.
Chart 1 shows the numerical retention criteria for
steady-state flow conditions; Chart 2 is for dynamic
flow conditions.
For predominantly coarse grained soils, the grain -
size distribution curve is used to calculate specific
parameters such as Cu, C'u, Cc, that govern the
retention criteria.
Chart 1. Soil Retention Criteria of Steady -State Flow Conditions
FROM SOIL
PROPERTIES TESTS
MORE THAN
20% CLAY
dpo < 0.002mm
NONDSPERSNE SOL
095 <0.21MM
(DHR 0.5)
DISPERSIVE SOL
(DHR
USE 3 TO 6 INCHES OF VERY FINE SAND BETWEEN
SOIL AND GEOTEXTILE. THEN DESIGN THE GEOTEX
TILE AS A FILTER FOR THE SAND
LESS THAN 20% CLAY, and
MORE THAN 10% SILT
(dp > 0.002mm and
di, < 0.07mm)
LESS THAN
10% SILT. and
MORE THAN
1096 SAND
(dip rOw07mm
d10 < 4.8mm)
MORE THAN
90% GRAVEL
d10 > 4.8mm
APPLICATION
FAVORS
RETENTION
APPLICATION
FAVORS
PERMEABILITY
STABLE
SOIL
.C( NONPLASTIC SOIL
PLASTIC SOIL
PI >5
PI<5
USE TQC'„
(1 Cc 53)
UNSTABLE USE T* C'„
SOIL o
(Cc > 3 of
Cc<1)
USE
TANGENT AT
c1,040 -C
NOTES:
d, particle diameter of which size x percent is smaller
T whew: d , , and d't, are the exuemeties of a straight ine drawn
C u v tl. through the particle -size distribution, as directed above and
d'ta is the midpoint of this 6ne
Id3pi:
C:<
dG01C d10
WIDELY
GRADED
LOOSE
(Ip c 35%)
Ops < d'50
MEDIUM 13.5
(35% c Ip c 6516) Ops <C' d so
3
UNIFORMLY
GRADED
C'„<3
- relative density of the sot
PI - plasticity index of the sal
DHR - double -hydrometer ratio of the sal
095 - geotextile opening size
DENSE
[)p > 65%)
095 < 18d-5,
LOOSE
(Ip < 35%)
095<C'udso
MEDIUM < 1.5 Cu. d'50
(35% < Ip c 65%)
DENSE
(Ip > 65%(
Ogs c 2 C'„ d'sp
4
Chart 2. Soil Retention Criteria of Dynamic Flow Conditions
FROM SOIL
PROPERTIES TESTS
MORE THAN
20% CLAY
dm < 0.002mm
NON -DISPERSIVE SOL
095 <0.21MM
IDHR <05)
DISPERSNE SOIL
{DHR > 0.5)
USE 3 TO 6 INCHES OF VERY FINE SAND BETWEEN
SOIL AND GEOTEXTILE, THEN DESIGN THE GEOTEX
TILE AS A FILTER FOR THE SAND
LESS THAN 20% CLAY, and
MORE THAN 1096 5111
(d20 > 0.002mm and
tl1e < 0.07mm)
LESS THAN
10% SILT. and
MORE THAN
1096 SAND
(d10 > 0.tl07mm
d10 <84
MORE THAN
90% GRAVEL
d10 > 4.8mm
PLASTIC SOIL
PI 5
NON -PLASTIC SOIL
SEVERE WAVE ATTACK
095 < d50
MILD WATER CURRENTS
Cr,>5
PI <5
NOTES:
d% - particle diameter of which size x percent is smaller
PI plasticity index of the sod
DHR - double.hydrometer ratio of the sal
095 - geotextile opening size
Cu - d&0! d19
Og5 < 2.5d50 and O95 <d90
4:(Cu<5 d50<Og5<d9a
STEP FOUR:
Analysis of the soil to be protected is critical to proper filtration
design.
Define Soil Particle -Size Distribution
The particle -size distribution of the soil to be protected should be determined
using test method ASTM D 422. The grain size distribution curve is used to deter-
mine parameters necessary for the selection of numerical retention
criteria.
Define Soil Atterberg Limits
For fine-grained soils, the plasticity index (PI) should be determined using
the Atterberg Limits test procedure (ASTM D 4318). Charts 1 and 2 show how
to use the PI value for selecting appropriate numerical retention criteria.
Determine the Maximum Allowable Geotextile Opening Size (095)
The last step in determining soil retention requirements is evaluating the maxi-
mum allowable opening size (095) of the geotextile which will provide
adequate soil retention. The 095 is also known as the geotextite's Apparent Open-
ing Size (AOS) and is determined from test procedure ASTM D 4751. AOS can
often be obtained from manufacturer's literature.
DETERMINE
GEOTEXTILE PERME-
ABILITY REQUIRE-
MENTS
Define the Soil Hydraulic Conductivity (ks)
Determine the soil hydraulic conductivity, often referred to as permeability, using
one of the following methods:
• For critical applications. such as
earth dams, soil permeability should
be lab measured using
representative field conditions in
accordance with test procedure
ASTM D 5084.
• For non-critical applications,
estimate the soil -hydraulic conduc-
tivity using the characteristic grain
diameter d15, of the soil (see Figure
2 on the following page).
5
STEP FOUR:
DETERMINE
GEOTEXTILE PERME-
ABILITY REQUIRE-
MENTS
(continued)
6
Figure 2. Typical Hydraulic Conductivity Values
�wuCt CSri I i#W46 66•16III` 93104 i 1..q a41 !rum
ais~r sass
s1aho+n33
rima
►kl) thil7
Define the Hydraulic Gradient for the Application (is)
The hydraulic gradient will vary depending on the filtration application.
Anticipated hydraulic gradients For various applications may be estimated using
Table 1 below.
Table 1. Typical Hydraulic Gradients
Drainage Applications
Typical Hydraulic Gradient
Channel Lining
1.0
Standard Dewatering Trench
1.0
Vertical Wall Drain
1.5
Pavement Edge Drain
1.0
Landfill LCDRS
1.5
Landfill LCRS
1.5
Landfill SWCRS
1.5
Shoreline Protection
Current Exposure
1.0ro1
Wave Exposure
10(b)
Dams
10(b)
Liquid Impoundments
10(b)
(a) Table developed after Giroud, 1988.
(19 Critical applications may require designing with higher gradients than those given.
Determine the Minimum Allowable Geotextile Permeability (kg)
The requirement of geotextile permeability can be affected by the filter appli
cation, flow conditions and soil type. The following equation can be used for all
flow conditions to determine the minimum allowable geotextile permeability
(Giroud, 1988):
kg > is ks
Permeability of the geotextile can be calculated from the permittivity test
procedure (ASTM D 4491). This value is often available from manufacturer's lit-
erature. Geotextile permeability is defined as the product of the permittivity, 'I',
and the geotextile thickness, t9:
kg = 'I't9
STEP FIVE:
DETERMINE
ANTI -CLOGGING
REQUIREMENTS
STEP SIX:
To minimize the risk of clogging, follow this criteria:
• Use the largest opening size (095)
that satisfies the retention criteria.
• For nonwoven geotextiles. use the
largest porosity available, never Tess
than 30%.
• For woven geotextiles, use the
largest percentage of open area
available, never Tess than 4%.
NOTE: For critical soils and applica-
tions, laboratory testing is recommend-
ed to determine geotextile clogging
resistance.
DETERMINE
SURVIVABILITY
REQUIREMENTS
STEP SEVEN:
Both the type of drainage or armor material placed adjacent to the geotextile
and the construction techniques used in placing these materials can result in dam-
age to the geotextile. To ensure construction survivability, specify the minimum
strength properties that fit with the severity of the installation. Use Table 2 as a
guide in selecting required geotextile strength properties to ensure survivability for
various degrees of installation conditions. Some engineering judgement must be
used in defining this severity.
Table 2. Survivability Strength Requirements (after AASHTO, 1996)
SUOSUTECE
ORM AGE
ARMORED
EROGIDHGZH ROL
Mal CONTACT SIRFSSES
WVGLE RDRENMIE KEEN
{EAW cawPCTi3NQ
}EAWGO NINGSTR.S:ESy
Low CONTACT STRESSES
RO NGEDDRMNAGENEOW
OUGHT CO PACnDNv
Mgr GONFPNIGSTRESSEss
MGM CONTACT STRESSES
IDREGf STOVE PI.AC 1 *NT)
CROP MDR >3FTI
LONcoNTACT srmssES
ISANO ORGEOTFJOEE
GuStiGN aM
DROP FECHT • 3 PE
-CIRMISIMPZIN
ini
tiONCAT OI
tB
SIVAISUAS
STROGIN89
P %x[
SINt!Th 1
r
SIIiN 4I.
MAXIM
IUM ROA
247
< 50% •
222
90
392
56
157
2 50%
142
56
189
56
180
< 50% '
162
67
305
56
112
> 50%
101
40
138
40
247
< 50%'
222
90
392
56
202
> 50%
182
79
247
79
247
^< 50%'
222
90
292
56
157
> 50%
142
56
189
56
Only woven monoTioinend geotextlies ire acceptable as 50% elatgatlon Tdtta
eon geotextiles. No woven Slit Tim geolexties are permined.
DETERMINE DURABIL-
ITY REQUIREMENTS
During installation, if the geotextile filter is exposed to sunlight for extended peri-
ods, a high carbon black content and UV stabilizers are recommended for added
resistance to UV degradation. Polypropylene is one of the most durable geotextiles
today, It is inert to most naturally occurring chemicals in civil engineering applica-
tions.
However, if it is known that the geotextile may exposed to adverse chemicals
(such as in waste containment landfill applications), use test method ASTM D5322
to determine its compatibility.
References
Giroud. J.R. "Review of Geotextile Filter Design Criteria." Proceedings of First Indian Conference on Reinforced Soil
and Geotextiles, Calcutta, India, 1988.
Heerten, G., "Dimensioning the Filtration Properties of Geotextiles Considering Long -Term Conditions." Proceedings of
Second International Conference on Geotextiles, Las Vegas, Nevada, 1982.
AASHTO, "Standard Specification for Geotextile Specification for Highway Applications", M288-96
7
GEOTEXTILE FILTER FABRIC SELECTION GUIDE
SOIL PROPERTIES
Silty Gravel
w/Sand
(GM)
ks = .005cm/s
Well -Graded
Sand
(SW) #1
k5 = .005cm/s
Well -Graded
Silty Sand
(SW) #2
k5 = .001 cm/s
Silty Sand (SM)
_ 00005cmis
.PI = 0
Ce = 3.0
PI -0
P1-0
PI=0
C'u=16.2
Cc=2.8
Cc=1.0
C,=2.1
d'so=.21
C'u=34
C'u=9.1
C'„=5.3
Cu -67
d'so = 3,5mm
d'so = .52mm
d'so = .28mm
d50 = .22mm
CL, =211
Cu=8.4
C„=6.6
d90=.95mm
dso = 5.0mm
d50 - .60mm
dso = .28mm
(Note: Moderate to
Ciao = 22mm
d90 = 2.7mm
dao = 1.6mm
Heavy Compaction
Required)
Soil Retentionn1
Permeability
Clogging Resistance
Survivability Req't
Gradation
cz Relative Soil Density
1.85 mm
5 x 10'3
P.O.A. > 6%
LOW
Widely Graded
Dense
1,03 mm
5 x 10-3
P.O.A. > 6%
LOW
Widely Graded
Dense
.95 mm
1 x 10-3
P.O.A. > 6%
LOW
Widely Graded
Dense
.18 mm
5 x 10-5
n > 30%
LOW
Widely Graded
Medium
m
d RECOMMENDED
cc FABRIC
c
FILTERWEAVE 400
FILTERWEAVE 400
FILTERWEAVE 400
MIRAFI 180N
Z Soil Retention"'
ce
, Permeability
m
Clogging Resistance
v,
Survivability Req't
Gradation
Relative Soil Density
.93 mm
5 x 10'3
R.O.A. > 6%
HIGH
Widely Graded
Loose
.51 mm
5 x 10.3
P.O.A. > 6%
HIGH
Widely Graded
Loose
.48 mm
1 x 10.3
P.O.A. > 6%
HIGH
Widely Graded
Loose
.18 mm
5 x 105
n > 30%
HIGH
Widely Graded
Medium
RECOMMENDED
FABRIC
FILTERWEAVE 404
FILTERWEAVE 404
FILTERWEAVE 404
MIRAFI 180N
Soil Retention"°
Permeability
Clogging Resistance
Flow Conditions
RECOMMENDED
FABRIC
Soil Retention
Permeability
Clogging Resistance
Flow Condl tions
12.5 mm
5 x 10.3
P.O.A. > 6%
Mild Currents
1.5 mm
5x10'
P.O.A. > 6%
Mild Currents
0.7 mm
1 x 10'3
P.O.A. > 6%
Mild Currents
0,55 mm
5 x 10'5
P.O,A. > 6%
Mild Currents
FILTERWEAVE 400
FILTERWEAVE 400
RECOMMENDED
FABRIC
5.0 mm
.5 x 10.2
P.O.A. > 6%
Severe Wave Attack
FILTERWEAVE 400
FILTERWEAVE 400
0.60 mm
.5 x 10'2
P.O.A. > 6%
Severe Wave Attack
0.28 mm
1 x 10-2
P.O.A. > 6%
Severe Wave Attack
0.22 mm
5x10'`
P.O.A. > 6%
Severe Wave Attack
FILTERWEAVE 404
FILTERWEAVE 404
" Maximum opening size of geotextile (095) to retain soil. 2 Steady state flow condition.
FILTERWEAVE 500
3 Dynamic Flow Conditions
FILTERWEAVE 700
Clayey Sand
(SC)
ks = .00001 cm/s
PI = 16.0
Cc = 20
C'0 = n/a
d'50 = n/a
Ct, = 345
dso = .55mm
d90 = 5.8mm
> 10% silt
< 20% clay
SandySilt
k5 = .00005cm/s
PI = 0
C,=2.9
C't, = 1.7
d'so = .07
C, = 10.8
ds0 = .072mm
d90 = .13mm
Lean Clay
(CL)
ks = .0000001cm/s
PI = 16.7
Cc = 3.3
C'„ = n/a
d'50 = n/a
Cu = 36
d50 = .014mm
d90 = .05mm
> 16% silt
< 20% clay
DISCLAIMER
The information presented herein will not apply to every instal-
lation. Applicability of products will vary as a result of site con-
ditions and installation procedures. Final determination of the
suitability of any information or material for the use contem-
plated, of its manner of use, and whether the use infringes any
patents, is the sole responsibility of the user.
Mai' is a registered trademark of Nicolon Corporation.
ftnV,
Ten Cate Nif
TYPICAL SECTIONS AND APPLICATIONS:
DRAINAGE
...... r l "" ;;;
• Seepage Cut-off
• Pavement Edge Drains
• Slope Seepage Cut-off
• Surface Water Recharge
• Trench or "French"
Drains
• Structure Pressure
Relief
• Foundation Wall Drains
• Retaining Wall Drains
• Bridge Abutment
Drains
• Planter Drains
• Leachate Collection
and Removal
• Blanket Drains
• Subsurface Gas Col-
lection
ARMORED EROSION CONTROL
• River and Streambed Lin-
ing
• Culvert Inlet and Discharge
Aprons
• Abutment Scour Protection
• Access Ramps
Proper installation of filtration geotextiles includes anchor
ing the geotextile in key trenches at the top and bottom of
• Coastal Slope Protection
• Shoreline Slope Protection
• Pier Scour Protection
• Sand Dune Protection
Underwater geotextile placement is common and must
include anchorage of the toe to resist scour.
.21 mm
1x105
n>30%
LOW
Non -dispersive
.24 mm
5x10'5
n>30%
LOW
Uniformly Graded
Dense
.21 mm
1x10.7
n>30%
LOW
Non -dispersive
MIRAFI 140N Series
MIRAFI 140N Series
MIRAFI 140N Series
DRAINAGE
...... r l "" ;;;
• Seepage Cut-off
• Pavement Edge Drains
• Slope Seepage Cut-off
• Surface Water Recharge
• Trench or "French"
Drains
• Structure Pressure
Relief
• Foundation Wall Drains
• Retaining Wall Drains
• Bridge Abutment
Drains
• Planter Drains
• Leachate Collection
and Removal
• Blanket Drains
• Subsurface Gas Col-
lection
ARMORED EROSION CONTROL
• River and Streambed Lin-
ing
• Culvert Inlet and Discharge
Aprons
• Abutment Scour Protection
• Access Ramps
Proper installation of filtration geotextiles includes anchor
ing the geotextile in key trenches at the top and bottom of
• Coastal Slope Protection
• Shoreline Slope Protection
• Pier Scour Protection
• Sand Dune Protection
Underwater geotextile placement is common and must
include anchorage of the toe to resist scour.
.21 mm
1 x105
n>30%
HIGH
Non -dispersive
.18 mm
5x10'5
n>30%
HIGH
Uniformly Graded
Medium
.21 mm
1 x10-'
n>30%
HIGH
Non -dispersive
MIRAFI 160N
MIRAFI 180N
MIRAFI 160N
DRAINAGE
...... r l "" ;;;
• Seepage Cut-off
• Pavement Edge Drains
• Slope Seepage Cut-off
• Surface Water Recharge
• Trench or "French"
Drains
• Structure Pressure
Relief
• Foundation Wall Drains
• Retaining Wall Drains
• Bridge Abutment
Drains
• Planter Drains
• Leachate Collection
and Removal
• Blanket Drains
• Subsurface Gas Col-
lection
ARMORED EROSION CONTROL
• River and Streambed Lin-
ing
• Culvert Inlet and Discharge
Aprons
• Abutment Scour Protection
• Access Ramps
Proper installation of filtration geotextiles includes anchor
ing the geotextile in key trenches at the top and bottom of
• Coastal Slope Protection
• Shoreline Slope Protection
• Pier Scour Protection
• Sand Dune Protection
Underwater geotextile placement is common and must
include anchorage of the toe to resist scour.
1.4 mm
1x105
P.O.A.>6%
Mild Currents
0.13 mm
5x10-5
n>30%
Mild Currents
0.035 mm
1x10'
n>30%
Mild Currents
FILTERWEAVE 400
MIRAFI 1100N
MIRAFI 1160N
DRAINAGE
...... r l "" ;;;
• Seepage Cut-off
• Pavement Edge Drains
• Slope Seepage Cut-off
• Surface Water Recharge
• Trench or "French"
Drains
• Structure Pressure
Relief
• Foundation Wall Drains
• Retaining Wall Drains
• Bridge Abutment
Drains
• Planter Drains
• Leachate Collection
and Removal
• Blanket Drains
• Subsurface Gas Col-
lection
ARMORED EROSION CONTROL
• River and Streambed Lin-
ing
• Culvert Inlet and Discharge
Aprons
• Abutment Scour Protection
• Access Ramps
Proper installation of filtration geotextiles includes anchor
ing the geotextile in key trenches at the top and bottom of
• Coastal Slope Protection
• Shoreline Slope Protection
• Pier Scour Protection
• Sand Dune Protection
Underwater geotextile placement is common and must
include anchorage of the toe to resist scour.
0.55 mm
1x10'
P.O.A. > 6%
Severe Wave Attack
0.07 mm
5x104
P.O.A. > 6%
Severe Wave Attack
0.014 mm
1x106
n > 30%
Severe Wave Attack
FILTERWEAVE 404
MIRAFI 1160N
MIRAFI 1160N
DRAINAGE
...... r l "" ;;;
• Seepage Cut-off
• Pavement Edge Drains
• Slope Seepage Cut-off
• Surface Water Recharge
• Trench or "French"
Drains
• Structure Pressure
Relief
• Foundation Wall Drains
• Retaining Wall Drains
• Bridge Abutment
Drains
• Planter Drains
• Leachate Collection
and Removal
• Blanket Drains
• Subsurface Gas Col-
lection
ARMORED EROSION CONTROL
• River and Streambed Lin-
ing
• Culvert Inlet and Discharge
Aprons
• Abutment Scour Protection
• Access Ramps
Proper installation of filtration geotextiles includes anchor
ing the geotextile in key trenches at the top and bottom of
• Coastal Slope Protection
• Shoreline Slope Protection
• Pier Scour Protection
• Sand Dune Protection
Underwater geotextile placement is common and must
include anchorage of the toe to resist scour.
AikAA
.s.60NR.
Ten. Cate Nicolon
For more information on Mirafil' Geotextiles Filters in drainge and armored erosion control
applications, contact one of the following offices:
In North America contact:
Ten Cate Nicolon
365 South Holland Drive
Pendergrass, Ga. 30567
706-693-2226
Toll free: 888-795-0808
Fax: 706-695-4400
In Europe contact:
Ten Cate Nicolon Europe
Sluiskade NZ 14
Postbus 236
7600 AE Almelo
The Netherlands
Tel: +31-546-544487
Fax: +31-546-544490
In Asia contact:
Royal Ten Cate Regional Office
11th Floor, Menara Glornac
Kelana Business Centre
97, Jalan SS 7/2
47301 Petaling Jaya
Selangor Darul Ehsan
Malaysia
Tel: +60-3-582-8283
Fax: +60-3-582-8285
In Latin America & Caribbean contact:
Ten Cate Nicolon
5800 Monroe Road
Charlotte
North Carolina 28212
USA
Tel: 704-531-5801
Fax: 704-531-5801
log on to our website:
www.tcnicolon.com
BMP Catch Basin:
Straw bale catch basin: Bales will be
installed 2-3 bales high and 2 bales
wide.
Bale Installation:
Do not trench bales into ground. Stake
bales tightly against the ground, and
the next bale.
* Samples will be collected during
discharge.
Side View
Top View
Mirafi Fabric: Mirafi fabric will be
installed on the inner walls of the
interior straw bale catch basins to
ensure the capture of suspended
solids and debris that may occur from
the testing procedure.
* Samples will be
collected at the lowest
point of the catch
basin. Low point will
depend upon the
topography of the
basin.
Catch basins are designed to capture sediment and debris while allowing water to flow through. The
discharge locations will consist of nearly level or gently rolling, vegetated upland areas when applicable to
help avoid erosion issues. The size of the catch basin will vary by each location. Each will be built to
accommodate the amount of water that would be discharged. This BMP catch basin is designed so that
water will flow through the bales and filter out into the surrounding vegetation at a slow velocity.
From: {713) 381-8270
Brenda Mendez
P. 0. Box 4324
Houton, TX 77210
Origin 10: ED(A Fedaz
E
J1210111219022.5
Page 1 of 1
Ship Date: 23FEB12
ActWgt 1.0 LB
CAD: 103501316I1NET3250
SHIP TO: (303) 692-2000 BILL SENDER
Industrial Permits Unit (WQCD-P-B2)
Colorado Dept Public Health & Envir
4300 CHERRY CREEK SOUTH DR
SOUTH
DENVER, CO 80246
Delivery Address Bar Code
11
110
11
d
11
111
i
1111111
111
iii
Ref # MAPL Exp Prj & Western Ex II
Invoice #
PO #
Dept #
1
Nom
IMP:riMUM
TRK# , 7980 9219 5470
0201 ,
FRI 24 FEB Al
STANDARD OVERNIGHT
AG TEXA
i
512G 119F591A278
1
i
i
11
80246
CO -us
DEN
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