V .
MS4 Screening and Illicit Discharge Inspections
The City of Arlington has implemented a Dry Weather Screening and Monthly Routine Screening program to locate portions of the MS4 with suspected illicit discharges and improper disposals . Results of screening efforts during this permit term as well as a more complete description of the program may be found in MCM 8 , Monitoring , Evaluation , and Reporting . The entire MS4 , but not necessarily each individual outfall , is screened at least once during the five-year permit term .
VI .
NPDES and TPDES Permittee List
The City of Arlington maintains an industrial and construction database containing a list of operators and construction sites that are located within the Arlington city limits . This database contains the name , location , and permit number ( when applicable ) that authorizes stormwater discharges from construction activities .
VII .
MS4 Map
The City of Arlington presently operates a system with approximately 3,591 storm sewer outfalls , 535 miles of storm sewer pipe , and about 18,948 inlets . In the previous permit term , the City implemented an asset identification and inventory program to track all MS4 assets . Unique identifiers are assigned to allow for efficient tracking of system conditions , inspections , and maintenance . The system is GIS based and integrates system inventory data into a system map . Outfall verifications , inlet and manhole locations , and storm sewer pipe identification are continuous processes .
VIII .
Spill Prevention and Response
The Hazardous Materials Response Team ( HMRT ) of the City ’ s Fire Department and Environmental Compliance Officers ( ECOs ) provide spill response for hazardous material spills . The HMRT provides initial response and containment , while ECOs ensure removal of the spilled material in a manner that protects water quality . If the spill is minor , the HMRT will respond and perform the necessary removal actions themselves . There were no changes to the hazardous material spill response procedures during this reporting period .
During this reporting period , the HMRT responded to 44 major or minor HAZMAT incidents . No funds were reclaimed through the Cost Recovery Program ( back charging the responsible parties for cleanup ).
In addition to supporting the HMRT , ECOs respond to small spills in the MS4 when the responsible party is unknown or unable to accomplish the cleanup . Absorbents , booms , and pads are used for removing used oil and other petroleum products . The waste is collected and stored in drums for classification and disposal . HAZMAT Contractor services are used for sampling and disposal of these wastes . Additionally , the HAZMAT contractor is contacted for cleanup services when the size or type of spill exceeds the ECOs capability . Total costs for HAZMAT contract services for the reporting year were approximately : $ 40,644.03 .
Wrecker services operating within the City are required by ordinance to absorb and remove all spilled fluids of 25 gallons or less and to store and dispose of these fluids in accordance with applicable state and federal regulations . For larger spills and accidents where the responsible parties are unable to call a wrecker service , the City ’ s emergency response crew contains the fluids with absorbent and calls a contract wrecker service for cleanup and removal of the absorbent . The contract wrecker service delivers the used absorbent to the City for classification and disposal . Absorbent with automotive fluids from the wrecker service is collected and held in a covered roll-off container . When sufficient material is accumulated , the material is characterized then shipped for disposal . During the reporting period , total costs for the rental , sampling , and / or disposal of accumulated wastes from automobile accidents were $ 3,837.45 .
CITY OF ARLINGTON TPDES STORMWATER ANNUAL REPORT – FY 2017
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