314 CMR 12.11 - Requirements for Industrial Wastewater Pretreatment Systems

(1) Design and Construction Standards for Industrial Wastewater Pretreatment Systems. An Industrial User with an IWPS onsite shall ensure that the IWPS meets the following minimum standards for design and construction:
(a) Be designed to meet all local discharge standards and the applicable Categorical Industrial User standards in 40 CFR Chapter I, Subchapter N;
(b) Be equipped to treat at least 120% of maximum daily flow;
(c) Be designed to prevent the intentional diversion of wastewater that does not meet discharge standards;
(d) Be designed to prevent mixing of incompatible wastewaters during transport and treatment;
(e) Provides the necessary equipment and access to ensure safe operation and maintenance;
(f) Provides accessible locations for representative sample collection;
(g) Provides odor control measures necessary to prevent nuisance conditions;
(h) Complies with hazardous waste management rules at 310 CMR 30.605: Special Requirements for Wastewater Treatment Units if the IWPS will treat hazardous industrial wastewater or hazardous industrial wastewater sludge; and
(i) Be constructed in accordance with engineering plans reviewed, stamped, and signed by a Massachusetts Registered Professional Engineer (MAPE) with the appropriate specialty (including but not limited to chemical, civil, or environmental engineering). Modifications to an IWPS shall be made in accordance with revised plans reviewed, stamped and signed by a MAPE.
(2) Operation and Maintenance Manual Requirements for IWPS. The owner or operator of an IWPS shall prepare, keep current, and implement an operation and maintenance manual. The operation and maintenance manual shall contain, at a minimum, the following items:
(a) An introduction, including a general description of the facility and its industrial wastewater.
(b) Copies of all permits and standards, including any local permit and applicable categorical pretreatment standards.
(c) A description of the IWPS, which shall include:
1.A description of the principal treatment processes;
2.A description of the sources of water supply;
3.Identification of the sources of sanitary and industrial waste streams;
4.A description of any by-product recovery systems;
5.A description of liquid waste flow control measures;
6.A flow and material balance diagram; and
7.A list of raw materials used.
(d) A description of the operation and management of the industrial wastewater sludge handling facility and the name and location of the final sludge reuse, recycling, or disposal facility or site.
(e) Sampling and analytical procedures, including sampling locations, sampling frequencies, and analytical methods.
(f) A maintenance plan, including daily operating procedures and a periodic inspection plan.
(g) Emergency operating and response procedures, including a clear description of the communication among facility personnel and outside response agencies, emergency response procedures, and an emergency response equipment list and operating instructions.
(h) A safety plan, including general operating safety practice requirements and specific

handling practices for all hazardous wastes at the facility.

(i) A utility and supply plan, including each system's utility, major equipment list, and major equipment spare part list.
(j) A personnel management plan, including a facility staffing plan, operator certifications (if applicable), and personnel training programs, including training relating to the safety plan, the maintenance plan, the emergency operating and response program, and documentation of the training provided to relevant facility staff.
(3) Reporting and Record Keeping Requirements for IWPS.
(a) An Industrial User with an IWPS shall maintain the following records at the facility for at least three years and the records shall be made available for review by EPA, the Department, and the local or regional sewer authority upon request:
1.All permits and approvals required by federal, state, local or regional authorities;
2.The current facility plan for the IWPS and any related engineering evaluation reports;
3.As built construction plans of the IWPS; and
4.All records related to decommissioning of the IWPS such as the date of the system decommissioning, shipment records, and a brief description of how the IWPS was decommissioned.
(b) An Industrial User with an IWPS shall maintain the following records at the facility for at least three years; however, this period shall be automatically extended for the duration of any enforcement action, and the records shall be made available for review by EPA, the Department, and the local or regional sewer authority upon request:
1.Operation and maintenance records, including but not limited to, a daily operation log, a routine inspection log, an equipment maintenance log, a sludge management log with sludge shipment records, and a chemical and supply inventory;
2.Sampling and analysis records, including but not limited to, chain of custody documents, raw data, quality assurance and quality control results, and analytical reports; and
3.Documentation by the owner or operator that it has reviewed the IWPS and operation and maintenance manual annually and updated the manual appropriately.
(c) Industrial Users shall provide notification to the sewer system authority and the receiving wastewater treatment facility of any actual or proposed discharge of those pollutants listed in 314 CMR 3.17: Appendix B - Toxic Pollutants or of pollutants which would be subject to 33 U.S.C. ยงยง 1311, 1316 and 1317 and the regulations promulgated thereunder if they were directly discharged by the Industrial User.
(4) Decommissioning IWPS. The owner or operator decommissioning an IWPS shall comply with the following IWPS decommissioning requirements:
(a) Collect, treat, and dispose of the IWPS contents in accordance with applicable provisions in the following:
1.310 CMR 30.000: Hazardous Waste;
2. 310 CMR 19.00: Solid Waste Management;
3.Local sewer use regulations;
4. 314 CMR 3.00: Surface Water Discharge Permit Program; and
5. 314 CMR 5.00: Ground Water Discharge Permit Program.
(b) Decommission the IWPS.
1.Pump and haul away the remaining contents of the system;
2.Clean the system and related areas as necessary; and
3.If any part of the system is in the ground, comply with one of the following options:
i.Remove the system from the ground;
ii.Fill any empty tanks with clean sand, soil, or other inert material; or
iii.Change the function of the system permanently.
(c) Disconnect the decommissioned IWPS from the sewer system and keep all the decommissioning records as specified in 314 CMR 12.11(3).
(d) Report the decommissioning process to the receiving POTW with the following information:
1.Date of decommissioning;
2.Person responsible for decommissioning;
3.Description of decommissioning process; and
4.Record of final shipment of system's remaining contents.


314 CMR 12.11
Amended, Mass Register Issue 1259, eff. 4/25/2014.

State regulations are updated quarterly; we currently have two versions available. Below is a comparison between our most recent version and the prior quarterly release. More comparison features will be added as we have more versions to compare.

No prior version found.