§ 18-102. Permits for nonconforming discharge; pretreatment.

(a)

The permit shall not approve a discharge of any prohibited waste or pollutant into the sanitary sewer system, pursuant to Section 18-100, unless the significant industrial user has pretreated the waste and regulated its flow so that the waste will conform to local limits, categorical standards and other federal regulations.

(b)

Significant industrial users shall not employ any method or procedure for pretreating industrial waste or pollutants that has not been approved by the director.

(c)

When either the permit or the director requires a significant industrial user to pretreat industrial waste, the significant industrial user shall establish to the satisfaction of the director that the pretreatment process that the significant industrial user proposes to employ has been proven to be effective.

(d)

Any significant industrial user who discharges industrial waste or pollutants into the sanitary sewer system pursuant to a permit shall comply with this article.

(e)

All federal and state regulations for industrial waste discharge shall be incorporated into permits issued in accordance with this section.

(f)

Permits may include the following conditions and restrictions:

(1)

Maximum permissible concentrations or mass loadings of wastewater constituents.

(2)

Limits on the rate and time of discharge, or requirements for flow regulation and equalization.

(3)

Requirements for inspecting, flow metering, sampling facilities, and sampling methods.

(4)

Pretreatment of industrial wastewater before discharge.

(5)

Specifications for monitoring programs which may include sampling locations, frequency and method of sampling, flow metering, number of meters and standards for tests, reporting schedules and recordkeeping requirements.

(6)

Compliance schedules, milestones for implementing pretreatment processes that are required to meet categorical standards and progress reports describing the progress toward compliance.

(7)

Prohibitions on discharging certain wastewater constituents.

(8)

Periodic discharge reports on volume, rate of flow, constituent concentrations, peak flow rates, hours of operation, number of employees and other information.

(9)

Requirements for the protection of the sewerage system.

(10)

Other conditions that are imposed by the director to ensure compliance with local limits, categorical standards and state and federal regulations.

(11)

Conditions that are deemed necessary to prevent pass-through or interference, protect the quality of the body of water receiving the effluent, protect worker health and safety, facilitate sludge management and disposal.

(12)

Description of best management practices (BMPs) to implement local limits and prohibitive discharges.

(13)

Development and implementation of waste minimization plans to reduce the amount of pollutants discharged.

(14)

Surcharge for BOD, TSS, total phosphorus and nitrogen.

(15)

Requirement to control slug discharge, if determined by the director.

The director reserves the right to establish more stringent standards or requirements on discharges to Chesterfield County consistent with the purpose of this article.

(Code 1978, § 20-98(b)—(h); Ord. of 7-23-97, § 1; Ord. of 4-29-09(1), § 1)

(Code 1978, § 20-98(b)—(h); Ord. of 7-23-97, § 1; Ord. of 4-29-09(1), § 1)