previously established CRP sites and eventually added four ( 4 ) additional sites for comprehensive watershed sampling . One additional site was added in FY2017 for a total of thirteen ( 13 ) monthly E . coli sampling locations . Quarterly sampling occurs at the eight ( 8 ) previously established CRP sites and includes additional water quality parameters including : pH , dissolved oxygen , specific conductivity , air temperature , sample temperature , surfactants , chlorine , copper , phenols , ammonia , and visual observation . Lab analyses include testing for : Cadmium , Chromium , Copper , Manganese , Nickel , Zinc , Iron , Lead , Chlorophyll , TKN , Nitrate , Nitrite , Orthophosphate , Total Phosphate , Hardness , and E . coli .
The eight CRP sites are located on larger bodies of water . This provides a broader view of the health of the entire stormwater collection system as well as indicating the presence of any pollutants from illicit discharges upstream . TRA provides all CRP data to the TCEQ on behalf of the participating entities . In September 2014 , the City of Arlington converted to the TRA CRP reporting and sampling schedule , thus sampling may not necessarily align with the City of Arlington ’ s defined fiscal year or annual reporting cycle . Quarterly CRP sampling occurred in November 2020 , February 2021 , May 2021 , and August 2021 .
VI . Automotive Related Businesses ( ARB )
ARBs ( auto repair shops , paint shops , auto salvage yards , and the like ) can represent some of the largest generators of hazardous waste among small businesses . Many products used by the automotive industry contain a variety of potential pollutants ( e . g . solvents , heavy metals , oil and grease , and petroleum products ) that are considered toxic and dangerous to human health and the environment when not used properly . As such , these types of businesses can directly and indirectly impact surface water quality .
The Arlington ARB Program was created in April 2017 after several routine water quality investigations near concentrations of ARB facilities indicated increased levels of the hazardous pollutants . ARBs are classified as : ( 1 ) Automotive salvage yards ; ( 2 ) New or used automobile sales , rental , or leasing ; ( 3 ) Automotive parts sales , new or used , including , but not limited to , tires , tubes , engines , transmissions , exhaust systems , radiators , brakes and body parts , or any aftermarket or replacement parts ; ( 4 ) Automotive repair and / or replacement shops , including , but not limited to , tires , tubes , engines , transmissions , exhaust systems , radiators , brakes and bodies ; ( 5 ) Automotive frontend alignment shops ; ( 6 ) Automotive paint and / or body shops ; ( 7 ) Automotive oil change and lubrication shops ; ( 7 ) Automotive washing , cleaning , polishing and detailing ( excluding self-serve car washes ); ( 8 ) Automobile holding yards ; ( 9 ) Inoperable vehicle holding yards ; ( 10 ) Automotive Machine shops ; and ( 11 ) Automotive fueling stations .
Full integration of the Arlington ARB program into EM ’ s stormwater programming was completed in November 2018 . ARB programming is implemented in three parts : facility verification , facility inspection and education , and monitoring . Results of monitoring efforts in FY21 are outlined below . Facility verification and inspection information is outlined in Section 03 : IDDE of this report .
Sampling occurs at five ( 5 ) monitoring stations in the most impacted watersheds ( listed below ). Parameters include : metals , oil and grease ( O & G ), volatile organic compounds ( VOCs ), and total petroleum hydrocarbons ( TPH ).
� RCT180 – Rush Creek at 2315 W . Division St .* ( formerly RCT180 – Rush Creek at Bowen & Division ) �
JC303 – Johnson Creek at the intersection of Davis & Pioneer Parkway � JC1T – Johnson Creek channel at 2715 S . Cooper St .
� JC3T – Johnson Creek channel near 751 Station Dr .* ( formerly JC2T – Johnson Creek at 1921 S . Cooper St .)
� CCF1 – Cottonwood Creek at Forum Dr .
* In October 2020 , an assessment of the suitability of the five monitoring stations was conducted . Results of the assessment indicated that two of the five sites consistently did not have enough flow to grab water samples for testing and did not adequately represent the total discharge from ARBs in the surrounding areas . As such , two new sites were established to more effectively measure potential discharges from ARBs in the area .
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