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3 and 7 if sampling. If the source of the illicit discharge is clear and discernable (e.g. sewage), sampling is not necessary. ii. Suggested sampling equipment and supplies Note: The equipment listed below, including the black light, was provided to all WNY Stormwater Coalition members in 2011. The WNY Stormwater Coalition has test strips and equipment available to borrow. Purchasing information can be provided upon request. Contact for both: Mary Rossi at [email protected]. • Equipment o Hanna pH/Temp/Conductivity/TDS Meter o 6' Dipper Sample Collector o Nalgene Wash Bottle o Safety Glasses o 600 mL plastic beakers (2) o Glass jar/bottle with tight lid o Disposable Gloves o Tape Measure o Distilled Water o Paper Towels o Trash Bag o Hand Sanitizer o Black Light Fixture and Cotton Pads • Test Strips o Ammonia (Hach # 4315-70) o pH (LaMotte # 5049-36) o Total Chlorine (LaMotte # 5049-36) o Nitrite (LaMotte # 5049-39) o Nitrate (LaMotte # 5049-39) o Phosphate (Hach # 4315-75) iii. Use the Outfall and Monitoring Location Sampling Guide (follows) to conduct on- site sampling using field meter and test strips; if detergent contamination is suspected (bubbles/suds/etc.), a sample will need to be brought back for exposure to black light. Record results in Section 3 on the Monitoring Locations Inspection and Sampling Field Sheet. c. Retain forms as documentation of inspection/sampling for 5 years. III. Illicit Discharge Track Down For all flows characterized as “suspect” or “obvious” in Section 6 of the Monitoring Locations Inspection and Sampling Field Sheet, source track down must be conducted according to the following timeframe: