County · Pennsylvania

Montgomery County, Pennsylvania: drinking water records

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

Explore EPA records for 38 community water systems across 58 ZIP codes in Montgomery County, then find water-testing resources and available recent monitoring-station readings.

In focus38Community 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 15 of the 38 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 38 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
Aqua Pa Main System PA1460073	822,600	1,500	9	2	0 ppbbelow the action level
Pottstown Borough Water Auth PA1460037	36,000	120	4	2	0.9 ppbbelow the action level
Horsham Water&sewer Authority PA1460033	26,000	780	8	1	0 ppbbelow the action level
Collegeville Trappe Joint Pwd PA1460022	8,470	390	8	1	3 ppbbelow the action level
Schwenksville Borough Auth PA1460042	5,200	240	3	1	0 ppbbelow the action level
North Penn Water Authority PA1460034	91,941	360	3	0	0.5 ppbbelow the action level
Pa American Norristown PA1460046	88,885	120	4	0	2 ppbbelow the action level
North Wales Water Authority PA1460048	72,496	480	9	0	1.6 ppbbelow the action level
Ambler Boro Water Dept PA1460020	20,000	600	10	0	2.3 ppbbelow the action level
Aqua Pa Hatboro PA1460028	12,901	240	8	0	0 ppbbelow the action level
Aqua Pa Superior Main System PA1460085	11,400	540	6	0	0 ppbbelow the action level
Pa American Audubon PA1460055	8,200	480	9	0	4 ppbbelow the action level
Telford Borough Authority PA1460050	7,700	540	9	0	3 ppbbelow the action level
Upper Hanover Water Authority PA1460036	4,600	240	4	0	1 ppbbelow the action level
Aqua Pa Perkiomen Township PA1460069	3,600	300	7	0	0 ppbbelow the action level
Parkhouse Nursing & Rehab Ctr PA1460008	1,200	0	0	2	0.9 ppbbelow the action level
Yerkes Water Association PA1460064	165	0	0	8	160 ppbat or above the action level
E Greenville Boro Water Dept PA1460023	3,100	0	0	0	4 ppbbelow the action level
Red Hill Water Authority PA1460039	2,500	0	0	0	25.3 ppbat or above the action level
Village of Neshaminy Falls PA1460077	1,300	0	0	0	2 ppbbelow the action level
Aqua Pa Perkiomen Woods PA1460068	1,100	0	0	0	2 ppbbelow the action level
Frederick Living PA1460075	640	0	0	0	5 ppbbelow the action level
Perkiomen Crossing PA1460087	508	0	0	0	1 ppbbelow the action level
Aqua Pa Superior Center Point PA1460092	500	0	0	1	not reported
Green Hill MHP PA1460027	323	0	0	0	9.5 ppbbelow the action level
Avante Apartments PA1460062	315	0	0	0	7 ppbbelow the action level
Awc Valley Forge Crossing MHP PA1460035	250	0	0	0	1 ppbbelow the action level
Hilltop Mobile Estates PA1460038	220	0	0	0	1.5 ppbbelow the action level
Aqua Pa Superior Ivy Ridge PA1460007	150	0	0	0	52 ppbat or above the action level
Spruce Court Apartments PA1460071	139	0	0	0	2 ppbbelow the action level
Oak Grove Park MHP PA1460030	130	0	0	0	29.6 ppbat or above the action level
Windhaven MHP PA1460005	112	0	0	0	1.8 ppbbelow the action level
Wooded Ridge Development PA1460025	90	0	0	1	not reported
Saint Luke Knolls PA1460086	50	0	0	0	1.5 ppbbelow the action level
Pleasant Run MHP PA1460006	32	0	0	0	7 ppbbelow the action level
Wec International PA1460012	25	0	0	3	not reported
Aqua Pa Upper Providence PA1460015	810	0	0	0	not reported
Dock Woods Community PA1460010	72	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. 4 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 Montgomery 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 Montgomery County

58ZIP 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

Audubon
Bala Cynwyd
Blue Bell
Bridgeport
Bryn Athyn
Cheltenham Village
Conshohocken
East Greenville
Elkins Park
Flourtown
Fort Washington
Gilbertsville
Green Lane
Harleysville
Hatfield
Hereford
Horsham
Jenkintown
King of Prussia
Lansdale
Merion Station
Mont Clare
Montgomeryville
Narberth
Norristown
Oreland
Penn Wynne
Pennsburg
Plymouth Meeting
Pottstown
Red Hill
Roslyn
Royersford
Skippack
Souderton
Spring House
Spring Mount
Telford
Trappe
Willow Grove
Wyncote
Wyndmoor

Explore water-system records Find water-testing resources

View ZIP areas and understand coverage

18041East Greenville
18054Green Lane
18070Hereford
18073Pennsburg
18074Spring Mount
18076Red Hill
18915Montgomeryville
18936Montgomeryville
18964Souderton
18969Telford
19001Roslyn
19002Spring House
19004Bala Cynwyd
19006Bryn Athyn
19009Bryn Athyn
19012Cheltenham Village
19025Fort Washington
19027Elkins Park
19031Flourtown
19034Fort Washington
19035
19038Wyndmoor
19040Horsham
19044Horsham
19046Jenkintown
19066Merion Station
19072Narberth
19075Oreland
19090Willow Grove
19095Wyncote
19096Penn Wynne
19401Norristown
19403Audubon
19405Bridgeport
19406King of Prussia
19422Blue Bell
19426Trappe
19428Conshohocken
19435
19436
19437
19438Harleysville
19440Hatfield
19444
19446Lansdale
19453Mont Clare
19454Montgomeryville
19456
19462Plymouth Meeting
19464Pottstown
19468Royersford
19472
19473Skippack
19474Skippack
19477Spring House
19490
19492
19525Gilbertsville

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 15 systems EPA surveyed here. See how to check a filter’s certified PFAS reduction.LeadChoosing a lead filter10 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 Montgomery 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.