Velarion Records

Clean Water Act discharge permit · NPDES MA0100447

GREATER LAWRENCE SANITARY DISTRICT, No Andover, MA: NPDES MA0100447 discharge permit, effluent exceedances, inspections, penalties

GREATER LAWRENCE SANITARY DISTRICT holds NPDES permit MA0100447, which discharges to Merrimack River. EPA’s file records it issued August 11, 2005 and expiring September 30, 2010. The status and dates are as EPA’s permit file stood when Velarion loaded it (October 14, 2026); EPA’s free Detailed Facility Report on ECHO carries the permit’s current standing.

Identity

Facility as filedGREATER LAWRENCE SANITARY DISTRICT
Permittee as filedGREATER LAWRENCE SANITARY DISTRICT
NPDES IDMA0100447
Permit statusAdministratively continued (past its expiration date and still in force until reissued)
Permit typeIndividual permit
Discharger classMajor discharger
Facility typePublicly owned treatment works
ProgramPublicly owned treatment works
IssuedAugust 11, 2005
Expiration dateSeptember 30, 2010
AddressNo Andover, MA 01845
Receiving waterMERRIMACK RIVER
Receiving water impaired303(D) Listed
SubwatershedSpicket River (HUC 010700061102)
Program components on fileBiosolids, CSO, POTW, Pretreatment
SIC4952 – Sewerage Systems
Other EPA IDs (FRS)RCRA handler MAD084645563; ICIS-AIR source MA0000002512100242

Cited to the EPA ICIS-NPDES permit file (ECHO download) and EPA’s NAICS/SIC and component files, the same download; cross-program IDs from EPA’s FRS facility-registry crosswalk.

Effluent limits and exceedances

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 measureLimitsViolations, any kindEffluent exceedancesLatest exceedanceLargest exceedance, as filed
Coliform, fecal general26361January 31, 201999,999% over the limit
BOD, 5-day, 20 deg. C83029January 31, 2024136% over the limit
Solids, total suspended82524March 31, 2024568% over the limit
E. coli, colony forming units [CFU]01414April 30, 202499,999% over the limit
Chlorine, total residual41210October 31, 2004292% over the limit
BOD, 5-day, percent removal144December 31, 202367% over the limit
LC50 Static 48Hr Acute Ceriodaphnia dubia1123May 31, 200229% over the limit
pH233July 31, 2006
Solids, suspended percent removal133December 31, 2023120% over the limit
Flow, in conduit or thru treatment plant451June 30, 19982% over the limit
NOEL Static Renewal 7Day Chronic Ceriodaphnia dubia1110
Phosphorus, total [as P]240
Nitrite + Nitrate total [as N]520
Nitrogen, Kjeldahl, total [TKN] [water]220
Nitrogen, total [as N]300
Nitrogen, Kjeldahl, total [as N]300
Nitrogen, ammonia total [as N]200
Oxygen, dissolved [DO]100

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

EPA’s single-event violation file, as loaded, holds no violation for NPDES MA0100447.

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, MA0100447.

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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 MA0100447 there.

Nearby on the register

Figures from EPA’s ICIS-NPDES download, loaded October 14, 2026.

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