Chester County, Pennsylvania Water Systems

Chester County, Pennsylvania

212 community water systems on record — 67 active, 145 inactive.

Every active community water system nationwide must produce a Consumer Confidence Report under the EPA's revised rule, effective for reports due July 1, 2027.

Data sourced from the EPA ECHO database (SDWA bulk download), last refreshed August 1, 2026. This is a record-keeping and public-information tool — it does not replace Pennsylvania’s official records. Always confirm current status with Pennsylvania before making decisions based on this information.

Community water systems in Chester County, Pennsylvania

System name	Mailing city	Population served	Status
PHILADELPHIA SUBURBAN WATER CO	BRYN MAWR	130,000	Inactive
PA AMERICAN ROYERSFORD	SPRING CITY	49,508	Active
AQUA PA WEST CHESTER	BRYN MAWR	48,600	Active
PA AMERICAN COATESVILLE	COATESVILLE	36,960	Active
AQUA PA UWCHLAN	BRYN MAWR	35,518	Active
PHOENIXVILLE WATER DEPT	PHOENIXVILLE	16,599	Active
COATESVILLE AUTHORITY	COATESVILLE	15,000	Inactive
PHILADELPHIA SUBURBAN WATER CO	BRYN MAWR	10,816	Inactive
SADLER WELLS INC	LACKAWANNA	10,500	Inactive
DOWNINGTOWN WATER AUTHORITY	DOWNINGTOWN	9,900	Active
AQUA PA FRIENDSHIP	BRYN MAWR	8,800	Active
AQUA PA SPRING RUN	BRYN MAWR	8,151	Active
VALLEY FORGE SPRINGS	VALLEY FORGE	7,000	Inactive
KENNETT SQUARE MUN WATER WORKS	KENNETT SQUARE	6,328	Active
PHILADELPHIA SUBURBAN WATER CO	BRYN MAWR	5,788	Inactive
OXFORD BOROUGH	OXFORD	5,280	Active
IMMACULATA UNIVERSITY	IMMACULATA	4,986	Inactive
LONDON GROVE TWP MUN AUTH	WEST GROVE	4,770	Active
WISSAHICKON SPRING WATER CO	PHILADELPHIA	3,500	Inactive
ROCKWOOD SPRING WATER CO.	POTTSTOWN	3,301	Inactive
PSW-MALVERN	BRYN MAWR	3,100	Inactive
NORTH COVENTRY WATER SYSTEM	POTTSTOWN	2,907	Active
HONEY BROOK BORO WATER	HONEY BROOK	2,892	Active
WEST GROVE BOROUGH	WEST GROVE	2,873	Active
PHILADELPHIA SUBURBAN WATER CO	BRYN MAWR	2,800	Inactive
PA AMERICAN PHOENIXVILLE	SPRING CITY	2,661	Inactive
PA AMERICAN VALLEY SPRINGS	COATESVILLE	2,500	Inactive
AQUA PA BEVERSREDE	BRYN MAWR	2,300	Inactive
COATESVILLE VETERANS ADM HOSP	COATESVILLE	2,000	Active
ELVERSON WATER COMPANY	ELVERSON	1,641	Active
AQUA PA HONEYBROOK	BRYN MAWR	1,600	Active
SOUTHEASTERN CHESTER CO AUTH	TOUGHKENAMON	1,500	Inactive
BOROUGH OF ATGLEN	ATGLEN	1,406	Active
AQUA PA CULBERTSON RUN	BRYN MAWR	1,396	Inactive
AQUA PA WILLOWDALE	BRYN MAWR	1,300	Inactive
SHANGRI LA WATER COMPANY	WILMINGTON	1,275	Inactive
HOME WATER CO	SPRING CITY	1,200	Inactive
PHILADELPHIA SUBURBAN WATER CO	BRYN MAWR	1,200	Inactive
BOROUGH OF AVONDALE	AVONDALE	1,108	Active
PA AMERICAN MERLIN HILLS	READING	1,050	Inactive
GOLF CLUB APARTMENTS	WEST CHESTER	968	Inactive
TEL HAI RETIREMENT COMMUNITY	HONEY BROOK	930	Active
EMBREEVILLE STATE HOSPITAL	EXTON	916	Inactive
KENDAL CROSSLANDS	KENNETT SQUARE	900	Inactive
RIDGLEA	POTTSTOWN	900	Active
VALLEY CROSSING	COATESVILLE	900	Inactive
WESTTOWN SCHOOL	WEST CHESTER	900	Active
VILLAGES OF HILLVIEW	COATESVILLE	838	Inactive
GREAT VALLEY W CO-HIGHLAND GL	MALVERN	832	Inactive
BRADFORD GLEN WATER COMPANY	EXTON	800	Inactive
CAMDEN PARK	PAOLI	800	Inactive
CHESTER WATER AUTHORITY	CHESTER	776	Inactive
WATERVIEW APARTMENTS	WEST CHESTER	750	Inactive
PSW POCOPSON	BRYN MAWR	729	Inactive
CHESTER COUNTY PRISON FARM	WEST CHESTER	700	Inactive
POCOPSON HOME	LENAPE	700	Inactive
PHILADELPHIA SUBURBAN WATER CO	BRYN MAWR	694	Inactive
AQUA PA EAST PIKELAND	BRYN MAWR	675	Active
UMH OXFORD VILLAGE MHP	WEST GROVE	670	Inactive
VALLEY VIEW APARTMENTS	POTTSTOWN	630	Inactive
S E VETERANS CENTER	SPRING CITY	600	Inactive
BRANDYWINE AREA WATER COMPANY	DOWNINGTOWN	597	Inactive
INDIAN RUN VILLAGE MHP	MORGANTOWN	550	Active
PSW B&E	BRYN MAWR	546	Inactive
BEATON COMMUNITY WATER CO	DOWNINGTOWN	500	Inactive
NOTTINGHAM MANOR M H COURT	NOTTINGHAM	473	Active
APPLEVILLE MOBILE HOME PARK	COATESVILLE	461	Active
NORTH HILL CO C/O W CHESTER MU	WEST CHESTER	460	Inactive
GOSHEN MANOR APTS % MANAGER---	WEST CHESTER	450	Inactive
SPRING RUN ESTATES WTP	COATESVILLE	450	Active
LONGWOOD GARDENS	KENNETT SQUARE	440	Active
UMH VALLEY VIEW HONEYBROOK MHP	MORGANTOWN	429	Inactive
COVENTRY VILLAGE ASSOC	NORRISTOWN	400	Inactive
SHANGRA-LA APTS WATER CO	AVONDALE	400	Inactive
CHESTER WATER AUTHORITY	CHESTER	399	Inactive
AQUA PA LOCUST KNOLL	BRYN MAWR	388	Inactive
ELVERSON BOROUGH WATER ASSOC	ELVERSON	350	Inactive
GREAT VALLEY W CO-E GOSHEN	MALVERN	350	Inactive
EAST FALLOWFIELD UTILITIES INC	COATESVILLE	315	Inactive
AVONWHEEL ESTATE MHP	LEMOYNE	300	Active
CHATWOOD WATER COMPANY	WEST CHESTER	300	Inactive
DEVEREUX FOUNDATION BRANDYWINE	WEST CHESTER	300	Inactive
UTMA	EXTON	300	Inactive
WILLISTOWN HOMEOWNERS ASSOC	EDGEMONT	300	Inactive
LOCUST KNOLL #2	EXTON	287	Inactive
BRANDYWINE GREEN WATER CO	EXTON	284	Inactive
W CHESTER GAR WATER CO	WEST CHESTER	280	Inactive
DEERFIELD KNOLL WATER COMPANY	BRYN MAWR	270	Inactive
GREAT VALLEY W CO-W WHITELAND	MALVERN	270	Inactive
AQUA PA FRANKLIN	BRYN MAWR	265	Active
ICEDALE MOBILE HOME COURTS INC	ALLENTOWN	258	Inactive
GREAT VALLEY W CO-WESTTOWN WD.	MALVERN	256	Inactive
CFS-SCHOOL AT CHURCH FARM	PAOLI	250	Inactive
COVENTRY TERRACE	BANNER ELK	250	Active
MALVERN COURTS MHP	SACRAMENTO	250	Active
POND'S EDGE VILLAGE	RADNOR	250	Inactive
WEST CHESTER GARDENS	WEST CHESTER	250	Inactive
WETHERILL ESTATES	EXTON	250	Active
LINCOLN CREST MHP	MORGANTOWN	242	Inactive
SPRING RUN WATER CO-STATION #3	EXTON	238	Inactive
GREAT VALLEY W CO-WESTOWN PARK	MALVERN	228	Inactive
SPRING RUN WATER CO-STATION #2	EXTON	228	Inactive
GREAT VALLEY W CO-WESTTOWN #3	MALVERN	224	Inactive
PSW-DILWORTHOWN	BRYN MAWR	224	Inactive
HOME FARM EQ WTR CO C/O P NESP	POTTSTOWN	220	Inactive
PSW LARESERVE	BYRN MAWR	210	Inactive
CARTER MOBILEHOME PARK	DOWNINGTOWN	200	Inactive
CREEKVIEW MHP	NORRISTOWN	200	Active
DEVEREUX FOUND.-GLEN LOCH EAST	WEST CHESTER	200	Inactive
HEATHERWOOD RETIREMENT HOME	HONEY BROOK	200	Inactive
HICKORY HOUSE	HONEY BROOK	200	Inactive
PSW-KIMBERWICK	BRYN MAWR	200	Inactive
RAMBLEWOOD MOBILEHOME PARK	DOWNINGTOWN	192	Inactive
ARBOUR COURT	NASSAU	180	Active
MARTINS COMMUNITY LP MHP	COCHRANVILLE	180	Active
AQUA PA MANORWOOD	BRYN MAWR	175	Inactive
PHILLIPS MUSHROOM FARMS	KENNETT SQUARE	175	Inactive
GLEN LOCH WEST DEVEREUX	DOWNINGTOWN	170	Inactive
LONDONDERRY COURT MHP	NORTH EAST	160	Active
WESTBROOK SQUARE APTS.	WEST CHESTER	160	Inactive
CAMPHILL SOLTANE	GLENMOORE	152	Active
IMPERIAL MOBILE HOME PARK	MORGANTOWN	151	Active
COVENTRY GARDEN APARTMENTS	AUDUBON	150	Inactive
DOWNINGTOWN INDUSTRIAL SCHOOL	DOWNINGTOWN	150	Inactive
LIBERTY KNOLL APARTMENTS	KENNETT SQUARE	148	Inactive
CHESTER W. A.- LANDENBERG	NOTTINGHAM	145	Inactive
AVON GROVE TRAILER COURT	GLEN MILLS	142	Inactive
CAMPHILL SPEC SCH BEAVER RUN	GLENMOORE	140	Active
GREAT VALLEY W CO-MT BRADFORD	MALVERN	136	Inactive
BCWSA ST STEPHENS GREENE	WARRINGTON	130	Active
LOAGS CORNER MOBILE HOME PARK	MORGANTOWN	130	Active
PLUMSOCK HOMEOWNER ASSOCIATION	NEWTOWN SQUARE	130	Inactive
THE TIMBERS	DOWNINGTOWN	130	Inactive
SHADY GROVE MOBILE HOME PARK	NEW LONDON	129	Active
WORTON MOBILE HOME PARK	WEST CHESTER	123	Inactive
STONE BARN RENTALS	KENNETT SQUARE	120	Active
TWIN PINES HEALTH CARE CENTER	WEST GROVE	120	Active
WHITFORD WATER COMPANY	DOWNINGTOWN	120	Inactive
KEYSTONE COURT	BIRDSBORO	116	Inactive
GREAT VALLEY W CO-THORNBURY	MALVERN	104	Inactive
MANATAWNY MANOR	POTTSTOWN	102	Inactive
CAMPHILL VILLAGE KIMBERTON HLS	KIMBERTON	100	Active
RACQUET CLUB APARTMENTS	ARDMORE	100	Inactive
RACQUET CLUB APTS (FGHI)	ARDMORE	100	Inactive
RACQUET CLUB APTS (JKL)	ARDMORE	100	Inactive
COCHRANVILLE MHP	LANCASTER	99	Active
WARWICK WATER WORKS	KING OF PRUSSIA	98	Active
MAIN TRAILER PARK	BOOTHWYN	96	Inactive
ARTESIAN WATER PA INC	NEWARK	95	Active
HIDEAWAY MOBILE HOME PARK	GAP	95	Active
LAZY ACRES MOBILE HOME PARK	HONEYBROOK	95	Inactive
INDEPENDENCE PARK	KIRKWOOD	91	Active
BRANDYWINE HALL INC	WEST CHESTER	90	Inactive
BRANDYWINE MOBILE HOME PARK	LANCASTER	90	Inactive
HILLTOP MOBILE HOME PARK	LANCASTER	90	Inactive
PHOENIX MOBILE HOMES	PHOENIXVILLE	88	Inactive
WOODBROOKE WATER AUTHORITY	COATESVILLE	87	Active
PINE HILLS WATER CO INC	PAOLI	81	Inactive
MT IDY MOBILE HOME PARK	NARVON	80	Active
RIVEREDGE RENTALS	HAVERTOWN	80	Active
MC CANN'S MOBILEHOME PARK	PHOENIXVILLE	79	Inactive
LONDON GROVE MOBILE HOME PARK	NOTTINGHAM	76	Inactive
ASHWOOD APARTMENTS	CHESTER SPRINGS	75	Inactive
ST MARY OF PROVIDENCE CENTER	ELVERSON	75	Active
KADIMA REHAB	POTTSTOWN	70	Active
MAPLEWOOD MOBILE HOME PARK	BOWMANSVILLE	70	Active
PHOENIXVILLE MOBILE HOMES INC	PHOENIXVILLE	70	Inactive
UPSTATE WELL	GLENMOORE	70	Inactive
RAY'S TRAILER PARK	LANDENBERG	69	Inactive
UMH GREGORY COURTS MHP	MORGANTOWN	67	Inactive
LAKE RD MHP MENU MATE MUSHROOM	TOUGHKENAMON	65	Active
SPRING HILL ESTATES	ROYERSFORD	63	Inactive
ECHO VALLEY MHP	NORTH EAST	60	Active
PERRY PHILLIPS MOBILE HOMES	COATESVILLE	60	Active
SPRING HILL ESTATE MHP	GAP	60	Inactive
SPRINGTON COURT MOBILE HOMES	GLENMOORE	60	Inactive
GRANT STREET MOBILEHOME PARK	WEST GROVE	58	Inactive
CUPOLA COURT MOBILE HOME PARK	UWCHLAND	56	Inactive
PERKINS PARK	DOWNINGTOWN	56	Inactive
FOX KNOLL WATER CO	PAOLI	55	Inactive
RIDGEVIEW MHP	RISING SUN	55	Active
SHADYSIDE MHP	OXFORD	55	Inactive
HIGHLAND COURT	PARKESBURG	54	Active
LANGOMA WATER ASSOCIATION	ELVERSON	50	Inactive
PSW-IVY HILL	BRYN MAWR	50	Inactive
TAYLORS MOBILE HOME PARK	COATESVILLE	50	Active
HIGH POINT ESTATES	NARVON	48	Inactive
HIGH POINT ESTATES	COATESVILLE	48	Inactive
WHITELAND CREST WATER ASSOC	EXTON	48	Inactive
CAMPHILL SPEC SCH BEAVER FARM	GLENMOORE	45	Active
MORSTEIN MOBILEHOME PARK	WEST CHESTER	43	Inactive
KAOLIN MUSHROOM FARMS	AVONDALE (KAOLIN)	40	Inactive
SHADY OAK TERRACE	COATESVILLE	40	Inactive
WARWICK MOBILE HOME PARK	EXTON	40	Active
HERCULES T AVELLO M H P	KENNETT SQUARE	39	Inactive
CONISTON	KENNETT SQUARE	36	Inactive
EVANS SCHOOL	EXTON	33	Inactive
YODER WATER ASSOCIATION	EXTON	32	Inactive
500 REECEVILLE RD TRAILER CT	2215 E LINCOLN HWY C	31	Inactive
CALN MOBILE HOME PARK	PEACH BOTTOM	30	Active

Showing the 200 largest of 212 systems on record, by population served. Browse by county above for the full list — every system has its own page, and all of them are in the sitemap.