Code of Massachusetts Regulations
314 CMR - DIVISION OF WATER POLLUTION CONTROL
Title 314 CMR 12.00 - Operation And Maintenance And Pretreatment Standards For Wastewater Treatment Works And Indirect Dischargers
Section 12.07 - Recordkeeping and Reporting

Universal Citation: 314 MA Code of Regs 314.12

Current through Register 1531, September 27, 2024

(1) Monthly operating records shall be maintained in accordance with the Department's publication titled Directions for Completing Monthly Report Form for Wastewater Treatment Plants, made available by the Department on request. All daily inspection logs consistent with the O & M Manual requirements shall be kept at the wastewater treatment facility for a period of three years.

(2) Records of operation of wastewater treatment facilities or disposal systems required by the Department shall be submitted on forms supplied by the Department, on other forms approved by the Department for such use, or through eDEP. Monthly reports shall be certified by the wastewater treatment plant operator in charge and submitted by the tenth calendar day of the following month, unless otherwise specified in the permit. The Department may change the date of submittal upon receiving a written request from the person explaining the reason that 314 CMR 12.00 imposes an unreasonable hardship.

(3) Records shall be maintained of septage discharged to the treatment works and organic material accepted and processed in all anaerobic digesters at POTWs pursuant to 314 CMR 12.03(13). They shall contain at a minimum, the date, time, source, volume discharged and whether or not the load contained industrial wastes. Septage discharged at a wastewater treatment facility shall be tested for pH. These records shall be made available to the Department upon request.

(4) Data contained in the monthly operating records or other such records submitted to the Department shall be factually accurate to the best knowledge of the person operating the wastewater treatment facility.

(5) Records of all monitoring information including all calibration and maintenance records, all original strip chart recordings for continuous monitoring instrumentation, and copies of all reports required by 314 CMR 12.00 shall be retained for a period of at least three years from the date of the sample, measurement, or report. The retention period may be extended by the Department at any time. Records of monitoring information shall include:

(a) The date, exact place, and time of sampling or measurements;

(b) The name of the individual(s) who performed the sampling or measurement;

(c) The date(s) analyses were performed;

(d) The name of the individual(s) who performed the analyses;

(e) The analytical techniques or methods used; and

(f) The results of such analyses.

(6) Every person owning a sewer system shall maintain records on all sanitary and industrial sewer connections authorized to discharge to the sewer system. By January 31st of each year, the owner of the sewer system shall submit to the Department an annual sewer connection/extension report documenting all connections and extensions made to the system in the prior calendar year, the flows associated with each new connection and extension, and quantification of any infiltration and inflow reduction work completed to offset the impacts of the additional flow. A copy of the annual sewer connection/extension report shall also be provided to the owner of the wastewater treatment facility receiving flow from the sewer system.

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