(1) 
Applicable Requirements. Users which discharge to the POTW shall abide by the applicable wastewater monitoring requirements of this chapter, any applicable order, and any state or federal regulation or permit, including a wastewater discharge permit. The director may require self-monitoring as a requirement of discharge to the POTW, or may conduct city monitoring of any discharge to the POTW.
(2) 
Categorical Users Sampling Requirements. Categorical users with combined discharge shall measure flows and concentrations necessary to allow use of the combined wastestream formula of 40 CFR 403.6(e). Where feasible, such users shall sample immediately downstream from any pretreatment facilities unless the control authority determines end-of-pipe monitoring to be more stringent or applicable.
(3) 
Noncategorical Users. All other users, where required to sample, shall measure the flows and concentrations necessary to evaluate compliance with pretreatment standards and requirements.
(4) 
Data Required. All sample results shall indicate the time, date and place, of sampling, and methods of analysis, and shall certify that the samples are representative of normal work cycles and expected pollutant discharges from the user. Whenever a user samples and analyzes any regulated pollutant more frequently than required, using methodologies in 40 CFR Part 136, the results of such analysis shall be submitted with the next required discharge report.
(Ord. 1221 § 1, 1996)
All pollutant analyses required to be reported, with the exception of flow and temperature, shall be performed by a laboratory registered or accredited under the provisions of Chapter 173-50 WAC. Sampling and analysis techniques used in collection, preservation, and analysis, shall be in accordance with 40 CFR Part 136 unless otherwise specified in an applicable categorical pretreatment standard. Where 40 CFR Part 136 does not contain sampling or analytical technique for the pollutant in question, a sampling and analyses shall be performed in accordance with procedures approved by EPA or Ecology.
(Ord. 1221 § 1, 1996)
The city shall follow the procedures required of users described in WMC § 14.24.230 and § 14.24.240 whenever conducting wastewater sampling of any industrial user when such sampling is conducted to ensure compliance with this chapter and applicable pretreatment standards and requirements.
(Ord. 1221 § 1, 1996)