§ 18-111. Monitoring and recordkeeping.

(a)

All significant industrial users shall analyze the flow rate, flow volume, and concentrations of all constituents of their industrial wastewater discharge. All significant industrial users shall perform any other analysis that is required by their permits, in accordance with the terms and conditions of the permit and the provisions of this article, unless the director at his/her discretion reduces the frequency of self-monitoring for in accordance with subsection (b) of this section.

(b)

The director may at his/her discretion reduce the frequency of self-monitoring for Chesterfield County's significant industrial users.

(c)

All wastewater analyses shall be conducted in accordance with 40 CFR 136 and amendments thereto, unless otherwise specified in an applicable categorical pretreatment standard. If no procedure is set forth in 40 CFR 136 for analyzing a particular constituent, then the director shall promulgate a procedure which shall be used to analyze the constituent's concentration.

(d)

All wastewater samples must be representative of the user's discharge. User shall properly operate wastewater monitoring and flow measurement facilities and keep clean and maintain in good working condition at all times.

(e)

If a significant industrial user monitors any regulated pollutant at the appropriate sampling location more frequently than required by the director, the result of the monitoring shall be reported.

(f)

The director may require any significant industrial user to construct and maintain a wastewater monitoring facility. The director shall approve the design and configuration of the monitoring facility.

(g)

The significant industrial user shall retain all monitoring records, permits, inspection reports and other records for three years or for a longer period when requested to do so by the director.

(Code 1978, § 20-105; Ord. of 4-29-09(1), § 1)

(Code 1978, § 20-105; Ord. of 4-29-09(1), § 1)