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Home My WebLink AboutNC0005762_Other Agency Documents_20231205Parameter Limits Monitoring Requirements Monthly Weekly Measurement Sample Sample [parameter code] Average Average Frequency T e Location Flow [50050] 7.0 MGD Continuous Recording Effluent OD, 5-day, 20° C (Summer) 10.0 mg/L 15.0 mg/L 3/Week Composite Effluent [CO310] OD, 5-day, 200 C (Winter) 20.0 mg/L 3 0. 0 mg/L 3/Week Composite Effluent [CO310] Total Suspended Solids 30.0 mg/L 45.0 mg/L 3/Week Composite Effluent [CO530] Fecal Coliform [31616] (geometric mean) 200/100 mL 400/100 mL 3/Week Grab Effluent 3-N (Summer) [CO610] 5.5 mg/L 16.5 mg/L Weekly Composite Effluent 3-N (Winter) [CO610] 24.1 mg/L 35.0 mg/L Weekly Composite Effluent Total Residual Chlorine (TRC), 28 µg/L Weekly Grab Effluent [50060] H [00400] > 6.0 and < 9.0 standard units 3/Week Grab Effluent Temperature [00010] 3/Week Grab Effluent Conductivity [00094] 3/Week Grab Effluent Dissolved Oxygen [00300] Daily average > 5.0 mg/L 3/Week Grab Effluent Total Nitrogen [00600] Monthly Composite Effluent (NO2+NO,+TKN) Total Phosphorus [00665] Monthly Composite Effluent Chronic Toxicity, [TGP3B] Quarterly Composite Effluent Footnotes: 1. TRC limit and monitoring requirements apply only if chlorine is used as a disinfectant or elsewhere in the process. The Division shall consider all effluent TRC values reported below 50 µg/L to be compliant. However, the Permittee shall continue to record and submit all values reported by a North Carolina certified laboratory (including field certified), even if these values fall below 50 µg/L. 2. Chronic Toxicity (Ceriodaphnia dubia) P/F at 14.9%: February, May, August, and November (see A. (2)). Toxicity monitoring shall coincide with quarterly metals monitoring. 3. The permittee shall submit discharge monitoring reports electronically using the Division's eDMR system [see A. (4)]. There shall be no discharge of floating solids or visible foam in other than trace amounts.