New Jersey Administrative Code
Title 7 - ENVIRONMENTAL PROTECTION
Chapter 14A - NEW JERSEY POLLUTANT DISCHARGE ELIMINATION SYSTEM
Subchapter 23 - TECHNICAL REQUIREMENTS FOR TREATMENT WORKS APPROVAL APPLICATIONS
Section 7:14A-23.13 - Wastewater treatment plants
Current through Register Vol. 56, No. 24, December 18, 2024
(a) Adequate treatment shall be provided for all wastewater before discharge into the waters of the State.
(b) Treatment plants shall be designed to produce an effluent which will consistently meet the limitations specified in the applicable NPDES or NJPDES permit and be conducive to the attainment and maintenance of such water quality criteria for the various classifications of surface and ground waters of the State.
(c) Siting requirements for wastewater treatment plants are as follows:
(d) A suitable operating building shall be provided meeting the following requirements:
(e) Treatment plant sites shall be appropriately landscaped and graded.
(f) Drains shall be installed and soil stabilized to prevent washing into tanks, basins or filters and to prevent erosion.
(g) The following safety features shall be incorporated into the treatment plant design:
(h) Treatment plants shall be provided with an adequate auxiliary source of power that is capable of maintaining the necessary plant functions to assure compliance with the facility's NJPDES permit.
(i) An alarm system operating on an independent source of power shall be provided for all treatment plants when 24-hour supervision is not provided.
(j) All electrical equipment work shall comply with the Fire Underwriters' regulations and with the National Electrical Code.
(k) Adequate means shall be provided for dewatering all treatment units for inspection and maintenance while still maintaining NJPDES permit compliance.
(l) Piping located under plant units shall be encased in concrete.
(m) Plant designs which propose the use of bypass lines that would circumvent treatment units and allow untreated or partially treated wastewater to be discharged will not be approved by the Department. The need for such bypassing is to be eliminated by providing adequate auxiliary treatment facilities.
(n) Treatment units should be designed for the population and wastewater flow that is anticipated 10 years or more after the completion of construction.
(o) Unless accurate data justifying a lesser design are submitted and approved by the Department, the hydraulic design of piping, channels, flumes and pumps shall be based on not less than 250 percent of projected flow, and treatment units shall be designed so as to provide adequate treatment to meet all NJPDES permit effluent conditions.
(p) Flow equalization at the treatment facility is suggested in cases where the ratio of peak (maximum instantaneous) to average daily flow exceeds 2.5.