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Region 6 Compliance Assurance and Enforcement Division
INSPECTION REPORT
Inspection Date(s): Media: Regulatory Program(s)
August 3, 2017 Municipal Wastewater NPDES
Company Name: Facility Name: Facility Physical Location:
(city, state, zip code) Mailing address:
(city, state, zip code) County/Parish: Facility Contact:
Coppell, City of
Coppell Wastewater Collection System
City of Coppell Public Works
Utilities Operations Division
816 S. Coppell Road
Coppell, Texas 75019
P.O. Box 9478
Coppell, Texas 75019
Dallas County Billy Williams
I Wastewater Operations Supervisor
bwilliams@coppelltx.gov
FRS Number: Identification/Permit Number: NAICS: SIC:
110010934427 TXU000149 (served by TRA Central Regional Wastewater System (TX0022802)) 221320 4952
Personnel participating in inspection:
Billy Williams
City of Coppell Public
Works
Zack Young
City of Coppell Public
Works
Danilo Dimafelix
City of Coppell Public
Works
Damon McElroy
EPA Region 6 (6EN-WM)
Alan Vaughn
EPA Region 6 (6EN-WM)
EPA Lead Inspector Signature/Date
Wastewater Operations Supervisor Environmental Health
Sewer Crew Leader
Environmental Engineer Environmental Engineer
f
972-304-3681 214-846-2822 214-406-5642 214-665-7159 214-665-7 487
{Inspector name}
Date
Supervisor Signature/Date
6ENFORM-019-R7 (2/15/2017)
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Section I- INTRODUCTION
City of Coppell Wastewater Collection System Inspection Date 08/03/2017
PURPOSE OF THE INSPECTION
The inspection purpose is to examine the City of Coppell's (or City) sanitary sewer collection system as an element of the EPA's National Sanitary Sewer Overflow (SSO) Initiative to prevent raw sewage from entering our streets, rivers, reservoirs, front yards, etc. For further SSO initiative information you may reference the web link: https://www.epa .gov/enforcement/water-enforcement. The inspection scope is to generally evaluate the municipalities that receive Trinity River Authority (TRA) wastewater treatment services in order to assist in stopping or mitigating unauthorized/unpermitted discharges or SSOs.
EPA Region 6 inspectors arrived at the City Public Works Utility Office at 9:10am on August 3, 2017, for an announced Compliance Evaluation Inspection. We met with the City's Wastewater Utility Officials illustrated by the inspection sign-in sheet in Appendix "2". We presented our credentials to the group. The purpose of the inspection was broadly explained as a collection system compliance evaluation of areas such as capacity, management, operations, and maintenance (CMOM) and associated SSO mitigation activities; as well as comprehensive SSO reporting according to Texas law. For further CMOM program guidance you may reference the web link: https://www3 .epa.gov/npdes/pubs/cmom gu ide for collection systems.pdf.
The inspection was conducted in accordance with the Clean Water Act (CWA). The City's collection system is regulated under the:
Texas Water Code (TWC) Texas Administrative Code (TAC) Texas Health and Safety Code Clean Water Act (CWA) Code of Federal Regulations (CFR) Associated CRWWS NPDES General Permit Conditions
Before 'leaving the facility, an exit briefing was conducted that explained observations, suggestions and areas of concern. This inspection report is based on information supplied by the City representatives, observations made by the U.S. EPA inspectors, records and reports maintained by the City, the State of Texas, and the U.S. EPA.
FACILITY DESCRIPTION
Coppell was described as a relatively affluent City and a suburb of Dallas located in northwest Dallas County, Texas. The City Wastewater Utilities Department is located at 816 S. Coppell Road, Coppell, TX 75019. The City's Wastewater (WW) Utilities serves about 41,000 residents with approximately 8,577 residential connections and 514 commercial connections covering approximately 15 square miles. The WW utility operates 24 hours a day and seven days a week. The City's collection system consists of approximately 198 miles of gravity lines, force mains, and two system lift stations. The collection system gravity lines consist of roughly 84% PVC, 14% Vitrified Clay (VC), 1% Ductile Iron (DI) and 1% other. The
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