Section NR 210.04 - Monitoring requirements(1) Discharges subject to the provisions of this chapter shall at a minimum monitor the effluent for BOD5, SS, and pH.(2) Influent wastewater strengths and volumes shall be characterized at treatment facilities subject to the monitoring provisions of sub. (1) by monitoring for flow, BOD5 and SS. (3) Monitoring requirements may be adjusted on a case-by-case basis depending on wastewater characteristics and their potential to degrade water quality.(4) The department shall require the use of 24-hour flow proportional samplers for monitoring influent and effluent wastewater quality except where the department determines through the permit issuance process that other sample types may adequately characterize the influent or effluent quality. In evaluating permit monitoring requirements, the department may consider: (a) Treatment facility design flow and actual flow;(b) Type of treatment processes used at the facility;(c) Previous performance records as reported on the discharge monitoring report;(d) Type of wastewater treated: domestic, municipal or industrial wastewater; and(e) Final effluent limitations.(5) The methods of sampling shall be as described in s. NR 218.04(10) to (17).Wis. Admin. Code Department of Natural Resources NR 210.04
Cr. Register, October, 1986, No. 370, eff. 11-1-86.