EPA · discharge permits by pollutant and parameter

pH change [range]

119Permits carrying a limit
23With a recorded exceedance
2States

EPA identifies this parameter by code 82214. A permit listed here carries a numeric limit on ph change [range] in its discharge; an exceedance is a monitoring result above that limit, as reported to EPA.

By state

Maryland102
Rhode Island11

By watershed

The subbasins of the national Watershed Boundary Dataset carrying the most permits with a limit on ph change [range].

Permits

Permit holder	NPDES ID	City	State	Program	Discharger	Receiving water
MANCHESTER ST. POWER STATION	RI0000434	PROVIDENCE	RI		Major	PROVIDENCE RIVER
GRANITE SHORE POWER MERRIMACK LLC	NH0001465	BOW	NH		Major	MERRIMACK RIVER
JENKINS PROPERTY	MDG498049	BRANDYWINE	MD		Minor	Swanson Creek - Black Swamp Creek
MASON DIXON MATERIALS .CECIL PLANT	MDG499768	PORT DEPOSIT	MD		Minor	FURNACE BAY
COKESBURY ROAD MINE	MDG499767	PERRYVILLE	MD		Minor	LOWER SUSQUEHANNA RIVER
BELVEDERE PLANT	MDG499889	PORT DEPOSIT	MD		Minor	Furnace Bay via PRINCIPIO CREEK
LAUREL HILL QUARRY	MDG490457	LAUREL	MD		Minor	ISRAEL'S CREEK-Upper Monacacy River
GARDINER - ROAD TRACT S&G	MDG498008	WALDORF	MD		Minor	ZEKIAH SWAMP
GRANTLEY PLANT	MDG499831	BALTIMORE	MD		Minor	GWYNN'S RUN
MCCONCHIE SAND AND GRAVEL FACILITY	MDG498015	PORT TOBACCO	MD		Minor	NANJEMOY CREEK
PERRYVILLE PLANT	MDG499888	PERRYVILLE	MD		Minor	PRINCIPIO CREEK
ZIMMERMAN PIT # 2	MDG499806	LEONARDTOWN	MD		Minor	Breton Bay
DAVIDSONVILLE PLANT	MDG493115	DAVIDSONVILLE	MD		Minor	PATUXENT RIVER
HARVE DE GRACE QUARRY	MDG492956	HARVE DE GRACE,	MD		Minor	SUSQUEHANNA RIVER
MOUNTAIN MATERIALS, INC.	MDG492282	JOPPA	MD		Minor	Lower Winters Run
DULEY WASH PLANT	MDG493000	BRANDYWINE	MD		Minor	ROCK CREEK
JENKINS PIT	MDG499708	JOPPA	MD		Minor	LOWER WINTERS RUN
CARRUTH & SON, INC	MDG499745	WALDORF	MD		Minor	Zekiah Swamp
PATUXENT MATERIALS, INC.	MDG491836	BALTIMORE	MD		Minor	Gwynns Falls
TWIN OAKS RESTAURANT	RIG250021	CRANSTON	RI		Minor	SPECTACLE POND
MFI CONCRETE, LLC	MDG498066	WOODBINE	MD	Industrial stormwater	Minor	UNNAMED TRIB TO S BRANCH PATAPSCO RIVER
CAROLINE MATERIALS, LLC	MDG499729	DENTON	MD		Minor	UPPER CHOPTANK
CYPRUS MINES	MDG490361	BALTIMORE	MD		Minor	BACK River
ATLANTIC CONCRETE MD LLC	MDG490741	COCKEYSVILLE	MD		Minor	Beaverdam Run-Loch Raven Reservoir
LAPLATA S&G READY MIX FACILITY	MDG499758	LAPLATA	MD		Minor	ZEKIAH SWAMP
LEE PIT # 1	MDG490170	BRANDYWINE	MD		Minor	Patuxent River - Middle
RANDALLSTOWN QUARRY	MDG499881	RANDALLSTOWN	MD		Minor	FALLS RUN via PATAPSCO RIVER-LOWER NORTH BR
MCINTOSH PIT	MDG499844	MECHANICSVILLE	MD		Minor	LOWER POTOMAC RIVER
SCHUSTER CONCRETE READY MIX, LLC	MDG499755	LAUREL	MD		Minor	ANACOSTIA CREEK
R.B. BAKER, INC. - PATCHETT PIT	MDG499864	QUEENSTOWN	MD		Minor	Lower Chester River via QUEENSTOWN CREEK
MCCENEY PIT	MDG499863	SILVER SPRING	MD		Minor	WASHINGTON METRO
MECHANICSVILLE RMC	MDG491091	MECHANICSVILLE	MD		Minor	Lockes Swamp Creek via Lower Patuxent River
PINESBURG QUARRY	MDG491405	WILLIAMSPORT	MD		Minor	UNNAMED TRIBUTARY TO POTOMAC RIVER
MIDLAND QUARRY	MDG498047	MIDLAND	MD		Minor	George's Creek
BYLER S&G	MDG498016	MECHANICSVILLE	MD		Minor	Lower Patuxent River
SUPERIOR SAND COMPANY	MDG490383	FRIENDSVILLE	MD		Minor	YOUGHIOGHENY RIVER
ELKTON PLANT	MDG499726	ELKTON	MD		Minor	Big Elk CREEK
MARSHYHOPE SAND/GRAVEL LLC.	MDG491600	FEDERALSURG	MD		Minor	Marshyhope Creek
RED TOAD ROAD PIT	MDG499887	NORTHEAST	MD		Minor	Northeast River via STONY RUN
ROCKVILLE F & F CO.,INC.PLT # 5	MDG499770	ELKRIDGE	MD		Minor	Dorsey Run