Clean Water Act discharge permit · NPDES MA0040231

PITTSFIELD ECONOMIC DEV.AUTH., Pittsfield, MA: NPDES MA0040231 discharge permit, effluent exceedances, inspections, penalties

EffectivePermit status
MinorDischarger class
21Pollutants under a numeric limit
2Pollutants with an effluent exceedance

PITTSFIELD ECONOMIC DEV.AUTH., held by PITTSFIELD ECONOMIC DEVEL.AUTH, holds NPDES permit MA0040231, which discharges to Silver Lake. EPA’s file records it issued August 18, 2021 and expiring October 31, 2026. The status and dates are as EPA’s permit file stood when Velarion loaded it (September 15, 2026); EPA’s free Detailed Facility Report on ECHO carries the permit’s current standing.

Identity

Facility as filed	PITTSFIELD ECONOMIC DEV.AUTH.
Permittee as filed	PITTSFIELD ECONOMIC DEVEL.AUTH
NPDES ID	MA0040231
Permit status	Effective
Permit type	Individual permit
Discharger class	Minor discharger
Facility type	Not a publicly owned treatment works
Issued	August 18, 2021
Expiration date	October 31, 2026
Address	Pittsfield, MA 01201
Receiving water	SILVER LAKE
Receiving water impaired	303(D) Listed
Subwatershed	East Branch Housatonic River (HUC 011000050103)

Cited to the EPA ICIS-NPDES permit file (ECHO download).

Effluent limits and exceedances

21Pollutants on file
21Under a numeric limit
16With a violation of any kind
2With an effluent exceedance

An effluent exceedance is a discharge monitoring report value over the permit’s numeric limit (EPA’s violation code E90). A violation of any kind also counts a report not filed. Each row is EPA’s own count for that pollutant.

Pollutant or measure	Limits	Violations, any kind	Effluent exceedances	Latest exceedance	Largest exceedance, as filed
Solids, total suspended	2	5	5	March 31, 2026	300% over the limit
Oil & Grease	2	4	2	April 30, 2026	833% over the limit
Nitrogen, ammonia total [as N]	2	2	0
Hardness, total [as CaCO3]	2	2	0
Cadmium, total [as Cd]	2	2	0
Chromium, total [as Cr]	2	2	0
Copper, total [as Cu]	2	2	0
Lead, total [as Pb]	2	2	0
Nickel, total [as Ni]	2	2	0
Zinc, total [as Zn]	2	2	0
Aluminum, total [as Al]	2	2	0
Chlorine, total residual	2	2	0
Suspended Solids, Total	2	2	0
Specific conductance [umho/cm]	2	2	0
LC50 Static 48Hr Acute Ceriodaphnia dubia	1	1	0
LC50 Static 48Hr Acute Pimephales promelas	1	1	0
pH	2	0	0
Nitrogen, total [as N]	2	0	0
Polychlorinated biphenyls [PCBs]	2	0	0
Flow, in conduit or thru treatment plant	2	0	0
E. coli	2	0	0

Cited to the EPA ICIS-NPDES limits and effluent violations files (ECHO download); up to 60 rows shown, most exceedances first.

Inspections, violations and enforcement

0Single-event violations

EPA’s single-event violation file, as loaded, holds no violation for NPDES MA0040231.

Velarion’s copy of EPA’s ICIS-NPDES files does not include the inspections, formal enforcement actions and informal enforcement actions files, so this page shows none of them. EPA’s free Detailed Facility Report on ECHO lists this permit’s inspections, enforcement actions and penalties.

Cited to the EPA ICIS-NPDES violation, inspection and enforcement files (ECHO download); up to 50 rows of each shown, newest first.

Watch this permit

One permit holder, $99/month. Watch the register for one permit holder and the places and receiving waters tied to its permits. Choose “One permit holder” and enter this permit’s NPDES ID, MA0040231.

Start the watch

How we handle your data → Privacy

EPA publishes a free Detailed Facility Report for every permit on ECHO: its compliance status quarter by quarter, its inspections, and its enforcement actions and penalties. EPA also sends free notices of new inspections and enforcement actions through ECHO Notify; enter NPDES ID MA0040231 there.

Nearby on the register

Figures from EPA’s ICIS-NPDES download, loaded September 15, 2026.

This public-records page covers NPDES permit MA0040231, held by PITTSFIELD ECONOMIC DEV.AUTH. in Pittsfield, MA, which discharges to Silver Lake and lists the receiving water as impaired under 303(D). The page reports 21 pollutants on file, 21 pollutants under a numeric limit, 16 with a violation of any kind, and 2 with an effluent exceedance.