§ 55.306 LIMITATIONS ON WASTEWATER STRENGTH.

   (A)   Compatible pollutant levels. The utility shall have the right to impose a surcharge for waste discharged into the sewerage system whose strength or character is such that the introduction of the waste into the sewage works may cause additional costs to the system. A user discharging compatible pollutants (as defined in § 55.001) above the following levels, shall be subject to surcharges as described in § 55.508:

 

Parameter	Discharge Levels
CBOD5	210 mg/L
TSS	240 mg/L
FOG	100 mg/L
TKN	40 mg/L
Phosphorous	1 mg/L

 

   (B)   Specific pollutant limitations. No person shall discharge wastewater containing more than:

Pollutant	Local Limit (mg/L)
Arsenic	0.16
Cadmium	0.09
Chromium, Total	2.7
Copper	0.20
Cyanide, Total	0.19
Lead	0.54
Mercury	0.0003
Nickel	1.1
Phenols, Total	1.0
Selenium	0.24
Silver	0.66
Zinc	2.4

 

   (C)   Unless otherwise defined herein, terms shall be as adopted in the latest edition of Standard Methods for the Examination of Water and Wastewater, published by the American Public Health Association, and American Waterworks Association and the Water Pollution Control Federation and as set forth in 40 C.F.R. part 136. Waste constituents and characteristics shall be measured by Standard Methods unless a mutually agreed upon acceptable alternative method is adopted, or by other method established by state or federal regulatory agencies. Monitoring and metering will be carried out by customarily accepted methods. The above limits apply at the point where the wastewater is discharged to the sewage works. All concentrations for metallic substances are for "total" metal unless indicated otherwise.

   (D)   The utility reserves the right to monitor or have a user monitor for pollutants not identified in this section to assess surcharges and compliance with this subchapter. The Wastewater Operations Manager will determine the type of analysis to be conducted based on the type and strength of pollutants discharged by a user to the sewage works. A COD limit will be established on a case-by-case basis and will be assessed at CBOD surcharge fees as described in § 55.508.

   (E)   The utility reserves the right to impose mass limits, in addition to, concentration limits on users.

   (F)   The utility reserves the right to establish special agreements with users that do not follow the wastewater strength limitations described in this section nor follows the surcharge amounts described in § 55.508. Special agreements may be established under § 55.301.

(Ord. 2017-06, passed 6-12-2017)