County · Pennsylvania

Chester County, Pennsylvania: drinking water records

Name: Drinking water records for Chester County, Pennsylvania
Creator: U.S. Environmental Protection Agency
License: https://www.usa.gov/government-works

Explore EPA records for 67 community water systems across 39 ZIP codes in Chester County, then find water-testing resources and available recent monitoring-station readings.

In focus67Community water systems

Public records. Clearer context.

Data as of EPA UCMR 5 final release, August 2026 (file dated Aug 28, 2026) · EPA SDWIS 2026Q2 (file dated Jul 9, 2026). How we build these pages

Drinking-water records

EPA survey and compliance records are historical reports. UCMR 5 results are available for 11 of the 67 listed systems in this snapshot. A system with no reported PFAS detection is not a test of every tap or every contaminant.

systems in EPA's PFAS survey

systems where PFAS was found

systems at or above the PFOA or PFOS limit, on the yearly-average basis EPA uses

systems that have reached the lead action level

systems with a health-based violation since 2016

System population figures are summed from EPA registry records and can overlap where wholesalers and retail systems serve the same people. They are not a Census county-population estimate.

Water systems in this county

All 67 active community systems in the available county records, sorted by record completeness. Scroll the table to explore more systems.

Water system	People served	PFAS survey results	PFAS found	Health-based violations	Lead, 9 in 10 homes at or below
Pa American Royersford PA1150166	49,508	360	8	1	2 ppbbelow the action level
Phoenixville Water Dept PA1150077	16,599	120	7	1	1 ppbbelow the action level
Kennett Square Mun Water Works PA1150108	6,328	360	8	2	0 ppbbelow the action level
Aqua Pa West Chester PA1150098	48,600	180	5	0	0 ppbbelow the action level
Pa American Coatesville PA1150106	36,960	120	2	0	2 ppbbelow the action level
Aqua Pa Uwchlan PA1150035	35,518	480	6	0	2.2 ppbbelow the action level
Downingtown Water Authority PA1150026	9,900	120	4	0	2 ppbbelow the action level
Aqua Pa Friendship PA1150137	8,800	480	8	0	0 ppbbelow the action level
Aqua Pa Spring Run PA1150089	8,151	300	9	0	0 ppbbelow the action level
Oxford Borough PA1150066	5,280	180	5	0	0 ppbbelow the action level
London Grove TWP Mun Auth PA1150165	4,770	180	4	0	0 ppbbelow the action level
North Coventry Water System PA1150220	2,907	0	0	2	800 ppbat or above the action level
Honey Brook Boro Water PA1150127	2,892	0	0	1	10 ppbbelow the action level
West Grove Borough PA1150105	2,873	0	0	1	3 ppbbelow the action level
Westtown School PA1150834	900	0	0	1	2 ppbbelow the action level
Indian Run Village MHP PA1150051	550	0	0	2	5 ppbbelow the action level
Nottingham Manor M H Court PA1150177	473	0	0	2	16 ppbat or above the action level
Appleville Mobile Home Park PA1150094	461	0	0	1	16 ppbat or above the action level
Spring Run Estates WTP PA1150216	450	0	0	2	29 ppbat or above the action level
Longwood Gardens PA1150131	440	0	0	1	1 ppbbelow the action level
Avonwheel Estate MHP PA1150004	300	0	0	3	6 ppbbelow the action level
Aqua Pa Franklin PA1150126	265	0	0	1	0 ppbbelow the action level
Coventry Terrace PA1150069	250	0	0	7	1 ppbbelow the action level
Creekview MHP PA1150083	200	0	0	1	3.5 ppbbelow the action level
Imperial Mobile Home Park PA1150013	151	0	0	1	21 ppbat or above the action level
Loags Corner Mobile Home Park PA1150030	130	0	0	2	7 ppbbelow the action level
Stone Barn Rentals PA1150204	120	0	0	2	4 ppbbelow the action level
Twin Pines Health Care Center PA1150007	120	0	0	2	2 ppbbelow the action level
Camphill Village Kimberton Hls PA1150168	100	0	0	5	3.5 ppbbelow the action level
Cochranville MHP PA1150202	99	0	0	2	21 ppbat or above the action level
Warwick Water Works PA1150157	98	0	0	4	696 ppbat or above the action level
Mt Idy Mobile Home Park PA1150020	80	0	0	2	32 ppbat or above the action level
Riveredge Rentals PA1150190	80	0	0	1	4 ppbbelow the action level
St Mary of Providence Center PA1150029	75	0	0	2	16 ppbat or above the action level
Maplewood Mobile Home Park PA1150017	70	0	0	1	45 ppbat or above the action level
Lake Rd MHP Menu Mate Mushroom PA1150208	65	0	0	1	4 ppbbelow the action level
Echo Valley MHP PA1150065	60	0	0	22	44.2 ppbat or above the action level
Perry Phillips Mobile Homes PA1150189	60	0	0	2	23 ppbat or above the action level
Ridgeview MHP PA1150200	55	0	0	3	1 ppbbelow the action level
Highland Court PA1150070	54	0	0	1	89 ppbat or above the action level
Warwick Mobile Home Park PA1150081	40	0	0	2	3.5 ppbbelow the action level
Caln Mobile Home Park PA1150150	30	0	0	3	10 ppbbelow the action level
Coatesville Veterans Adm Hosp PA1150186	2,000	0	0	0	1 ppbbelow the action level
Aqua Pa Honeybrook PA1150195	1,600	0	0	0	5 ppbbelow the action level
Borough of Atglen PA1150109	1,406	0	0	0	7 ppbbelow the action level
Borough of Avondale PA1150005	1,108	0	0	0	4.6 ppbbelow the action level
Tel Hai Retirement Community PA1150044	930	0	0	0	3 ppbbelow the action level
Ridglea PA1150215	900	0	0	0	50 ppbat or above the action level
Malvern Courts MHP PA1150011	250	0	0	0	1 ppbbelow the action level
Wetherill Estates PA1150209	250	0	0	2	not reported
Martins Community LP MHP PA1150144	180	0	0	0	3 ppbbelow the action level
Londonderry Court MHP PA1150019	160	0	0	0	30 ppbat or above the action level
Camphill Spec Sch Beaver Run PA1150039	140	0	0	0	5.5 ppbbelow the action level
Shady Grove Mobile Home Park PA1150145	129	0	0	0	7 ppbbelow the action level
Hideaway Mobile Home Park PA1150049	95	0	0	0	9 ppbbelow the action level
Independence Park PA1150183	91	0	0	0	1 ppbbelow the action level
Woodbrooke Water Authority PA1150164	87	0	0	0	11 ppbbelow the action level
Kadima Rehab PA1150078	70	0	0	0	25 ppbat or above the action level
Taylors Mobile Home Park PA1150015	50	0	0	0	44.6 ppbat or above the action level
Doe Run Mobile Home Park PA1150224	29	0	0	4	not reported
Elverson Water Company PA1150191	1,641	0	0	0	not reported
Aqua Pa East Pikeland PA1150006	675	0	0	0	not reported
Arbour Court PA1150213	180	0	0	0	not reported
Camphill Soltane PA1150223	152	0	0	0	not reported
Bcwsa St Stephens Greene PA1150210	130	0	0	0	not reported
Artesian Water Pa INC PA1150002	95	0	0	0	not reported
Camphill Spec Sch Beaver Farm PA1150226	45	0	0	0	not reported

Shaded rows report lead at or above the 15 ppb action level in their latest monitoring period. EPA sets that level for the value 9 in 10 sampled homes fall at or below; reaching it requires the utility to act, and it is not a measurement of any single tap. 17 systems in this table are at or above it. What an action level means

USGS · Monitoring stations

The water, more recently.

Available station readings in Chester County, Pennsylvania. Each measurement keeps its time, unit and original source.

These readings describe water at a monitoring station. They do not test your tap, measure PFAS or lead, or determine whether water is safe to drink or swim in.

Recent observations load when this section comes into view.

How these readings update

We check for updates every 10 minutes while this section is visible and show supported observations from the last 48 hours. The time beside a reading is when USGS measured it; the checked time is when our service retrieved the response. We mark a reading more than 6 hours old as older. Provisional observations can change after USGS review. A missing reading does not mean zero or clean water.

Temperature, pH, dissolved oxygen, turbidity, conductivity, streamflow and water level are shown only where a station reports them. Different measurements have different units and sampling intervals. USGS data and documentation.

Your next step

Water testing, reports & local help.

Use these official directories to find your drinking-water agency, a certified laboratory and public water records. We have not yet added an individually reviewed local resource list for this county.

Official national directories

Water testing

Find your state’s private-well program

EPA’s state directory points well owners to local program information. Services and eligibility vary by state and county.

U.S. Environmental Protection Agency
Source reviewed 2026-09-15 · Source updated 2026-08-05

Water testing

Find a certified drinking-water laboratory

Use EPA’s directory to reach your state’s laboratory certification program. EPA does not provide on-request testing of residential drinking water.

U.S. Environmental Protection Agency
Source reviewed 2026-09-15 · Source updated 2026-08-11

Public records

Find your utility’s Consumer Confidence Report

EPA links to community water-system reports and explains how to read them. Look for your actual supplier rather than assuming every address in a county shares one system.

U.S. Environmental Protection Agency
Source reviewed 2026-09-15 · Source updated 2026-09-09

Public records

Explore USGS water observations

Find current and historical observations from USGS monitoring locations, including available stream, lake, and groundwater data. Measurements vary by station and do not replace a test of your household water.

U.S. Geological Survey
Source reviewed 2026-09-15

A county overview cannot identify every property’s water provider. If you use a public water system, confirm its name on your bill and request its annual Consumer Confidence Report. Private wells need their own testing; public-system records do not describe a private well.

Understand water testing and laboratory reports

Resource descriptions are compiled by Tap Water Lookup. Review dates describe our source check, not a new water sample. How we review sources · Suggest a correction

Explore your area

Local coverage in Chester County

39ZIP areas in this overview

Explore the water-system records, recent station readings and testing resources on this county page. They describe the systems and stations identified in each section; they are not a separate water test for every community.

Towns and communities

Atglen
Berwyn
Chadds Ford
Coatesville
Cochranville
Devon
Downingtown
Eagle
Elverson
Exton
Frazer
Glenmoore
Honey Brook
Kenilworth
Kennett Square
Kimberton
Lincoln University
Modena
Nottingham
Oxford
Paoli
Parkesburg
Phoenixville
Pomeroy
Sadsburyville
Spring City
Thorndale
Toughkenamon
Unionville
Wayne
West Chester
West Grove

Explore water-system records Find water-testing resources

View ZIP areas and understand coverage

19087Wayne
19301Paoli
19310Atglen
19311Toughkenamon
19312Berwyn
19316
19317Chadds Ford
19320Coatesville
19330Cochranville
19333Devon
19335Downingtown
19341Exton
19343Glenmoore
19344Honey Brook
19345
19348Kennett Square
19350
19352Lincoln University
19355Frazer
19358Modena
19362Nottingham
19363Oxford
19365Parkesburg
19367Pomeroy
19369Sadsburyville
19372Thorndale
19374Toughkenamon
19375Unionville
19380West Chester
19382West Chester
19383West Chester
19390West Grove
19425Eagle
19442Kimberton
19457
19460Phoenixville
19465Kenilworth
19475Spring City
19520Elverson

These Census ZIP Code Tabulation Areas are grouped here by their largest county overlap. A ZIP area can cross county lines and contain several water suppliers or private wells. Place labels reflect Census geography, not verified postal city names or utility service boundaries.

Records for these areas are currently presented in this county overview rather than individual ZIP reports. An unpublished report does not mean there are no water records. Confirm your supplier on your water bill; if you use a private well, testing your own well is the relevant next step.

Beyond this county page

Keep reading. Compare nearby.

PFASChoosing a PFAS filterPFAS was found in all 11 systems EPA surveyed here. See how to check a filter’s certified PFAS reduction.LeadChoosing a lead filter27 systems here have reached the lead action level. See how to check a filter’s lead-reduction certification.Your utilityFind your annual water reportConfirm the supplier on your bill, then read its Consumer Confidence Report for local results.

Counties near Chester County

All Pennsylvania counties

Sources and scope

EPA UCMR 5 occurrence data, samples collected 2023-01-03 – 2026-06-17, final release, August 2026 (file dated Aug 28, 2026); EPA SDWIS via ECHO, 2026Q2 extract (file dated Jul 9, 2026); EPA service-area boundaries v3.0; Census 2020 ZCTAs. Database prepared 2026-09-03.

Counts cover the systems that report this county to EPA. A water system may cross county lines. "Found" means at least one result at or above the laboratory reporting level; it is not a compliance finding.

Compiled by Tap Water Lookup from the sources identified on this page. Read the methodology and review process.