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Clean Water Act discharge permit · NPDES RI0024007

MATERIAL SAND AND STONE, North Smithfield, RI: NPDES RI0024007 discharge permit, effluent exceedances, inspections, penalties

MATERIAL SAND AND STONE, held by MATERIAL SAND AND STONE CORPORATION, holds NPDES permit RI0024007, which discharges to Woonasquatucket River & Unnamed Trib. EPA’s file records it issued December 13, 2021 and expiring December 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 filedMATERIAL SAND AND STONE
Permittee as filedMATERIAL SAND AND STONE CORPORATION
NPDES IDRI0024007
Permit statusEffective
Permit typeIndividual permit
Discharger classMinor discharger
Facility typeNot a publicly owned treatment works
ProgramIndustrial stormwater
IssuedDecember 13, 2021
Expiration dateDecember 31, 2026
AddressNorth Smithfield, RI 02896
Receiving waterWOONASQUATUCKET RIVER & UNNAMED TRIB
Receiving water impaired303(D) Listed
SubwatershedWoonasquatucket River (HUC 010900040502)
Other EPA IDs (FRS)ICIS-AIR source RI0000044007000004

Cited to the EPA ICIS-NPDES permit file (ECHO 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
Solids, total suspended8153December 31, 2025716% over the limit
Iron, total [as Fe]631December 31, 2025290% over the limit
Zinc, total [as Zn]8200
pH4120
Nitrite + Nitrate total [as N]4120
Flow, in conduit or thru treatment plant4120
Enterococci4120
Perchlorate [ClO4]440

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 RI0024007.

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.

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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 RI0024007 there.

Nearby on the register

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

What this page shows

This public-records page covers NPDES permit RI0024007, held by MATERIAL SAND AND STONE CORPORATION for MATERIAL SAND AND STONE in North Smithfield, RI, which discharges to the Woonasquatucket River & Unnamed Trib. The permit is listed as Effective, a Minor discharger class, with 8 pollutants under a numeric limit and 2 pollutants with an effluent exceedance, issued December 13, 2021 and expiring December 31, 2026. The subwatershed is Woonasquatucket River (HUC 010900040502), and the status reflects EPA's permit file as of September 15, 2026.