Water Quality Report · Updated October 07, 2026
PA AMERICAN NORRISTOWN
PA AMERICAN NORRISTOWN delivers tap water graded D (64/100) by TapWaterSafety.org. The utility serves approximately 88,885 residents in NORRISTOWN, Pennsylvania using surface water. The most significant water quality concerns are: PFAS contamination; Haloacetic acids (HAA9) significantly above health guideline; Total trihalomethanes (TTHMs) significantly above health guideline; Bromodichloromethane significantly above health guideline. For questions, the utility can be reached at 610-292-3591.
Is NORRISTOWN tap water safe to drink?
PA AMERICAN NORRISTOWN delivers tap water that earns a grade of D (64/100) from TapWaterSafety.org — a below-average rating, with multiple concerns including pfas contamination.
The utility serves 88,885 residents in NORRISTOWN, drawing from surface water.
Public testing data identifies 14 contaminants in this water above EWG's health-based guidelines, including: Haloacetic acids (HAA9), Total trihalomethanes (TTHMs), Bromodichloromethane, Haloacetic acids (HAA5), Trichloroacetic acid, Chloroform, Dibromochloromethane, Chromium (hexavalent), Dichloroacetic acid, Dibromoacetic acid, Nitrate, Perfluorooctanoic acid (PFOA), Bromoform, Bromochloromethane. For most residents, a properly certified home filter at the kitchen tap is the most cost-effective way to reduce exposure to whatever's in your water. See our filter recommendations below, matched specifically to this utility's contaminant profile.
EPA compliance record
Official U.S. EPA records for PA AMERICAN NORRISTOWN (system ID PA1460046) for the last 3 years. Checked 2026-10-07.
| Rule | Type | Since | Status |
|---|---|---|---|
| Interim and Long Term 1 Enhanced Surface Water Treatment Rule | Missed testing or reporting | 10/01/2024 | Resolved |
Source: U.S. EPA Enforcement and Compliance History Online (ECHO), from the Safe Drinking Water Information System. See EPA's full report.
Quick actions for NORRISTOWN residents
Top concerns in this water
Based on the most recent EPA and EWG data, these are the most significant water quality issues for PA AMERICAN NORRISTOWN.
PFAS contamination
Severe concernPerfluorooctanoic acid (PFOA) detected. PFAS are persistent chemicals linked to cancer and immune effects with no known safe exposure threshold.
Haloacetic acids (HAA9) significantly above health guideline
Moderate concernHaloacetic acids (HAA9) detected at 20.2 ppb, 336x above the EWG health guideline of 0.06 ppb.
Total trihalomethanes (TTHMs) significantly above health guideline
Moderate concernTotal trihalomethanes (TTHMs) detected at 41.4 ppb, 276x above the EWG health guideline of 0.15 ppb.
Bromodichloromethane significantly above health guideline
Moderate concernBromodichloromethane detected at 12.0 ppb, 200x above the EWG health guideline of 0.06 ppb.
Contact PA AMERICAN NORRISTOWN
Reach the utility directly for service issues, water quality concerns, or to request your Consumer Confidence Report.
General Contact
Treatment Plant
Recommended water filters for NORRISTOWN
Filters matched to the specific contaminants in this water supply.
Filter certified for PFOA/PFOS (NSF/ANSI 53 or 58)
$180-$750Reverse osmosis and some carbon block filters reduce PFAS. Look for certification to NSF/ANSI 53 or 58 for PFOA/PFOS.
Carbon filter certified for VOCs (NSF/ANSI 53)
$180-$599Activated carbon is effective for disinfection byproducts. Look for NSF/ANSI 53 VOC reduction.
Disclosure: TapWaterSafety earns a commission from purchases made through these links. This does not influence our scoring methodology or filter selection.
Score breakdown
This utility's overall score of 64/100 breaks down across five weighted components. Read the full methodology →
Contaminants detected — international standards comparison
Every contaminant detected, compared side-by-side against US EPA legal limits, the EU Drinking Water Directive (2020/2184), WHO Guidelines, and California's Public Health Goal (the strictest US benchmark). Why we show multiple standards →
| Contaminant | Detected | EWG US health-based |
EPA US legal |
EU DWD Europe |
WHO global |
CA PHG strictest US |
Tested sample year |
Status |
|---|---|---|---|---|---|---|---|---|
| Haloacetic acids (HAA9) Disinfection byproduct |
20.2 ppb | 0.06 | — | — | — | — | — | 336× over |
| Total trihalomethanes (TTHMs) Disinfection byproduct |
41.4 ppb | 0.15 | 80.0 | 100 | — | — | — | 276× over |
| Bromodichloromethane Disinfection byproduct |
12.0 ppb | 0.06 | — | — | — | — | — | 200× over |
| Haloacetic acids (HAA5) Disinfection byproduct |
18.6 ppb | 0.1 | 60.0 | 60 | — | — | — | 186× over |
| Trichloroacetic acid Disinfection byproduct |
9.96 ppb | 0.1 | — | — | — | — | — | 100× over |
| Chloroform Disinfection byproduct |
23.4 ppb | 0.4 | — | — | — | — | — | 59× over |
| Dibromochloromethane Disinfection byproduct |
5.28 ppb | 0.1 | — | — | — | — | — | 53× over |
| Chromium (hexavalent) Heavy metal |
0.929 ppb | 0.02 | — | — | — | — | — | 46× over |
| Dichloroacetic acid Disinfection byproduct |
7.7 ppb | 0.2 | — | — | — | — | — | 39× over |
| Dibromoacetic acid Disinfection byproduct |
0.942 ppb | 0.03 | — | — | — | — | — | 31× over |
| Nitrate Inorganic |
2.73 ppm | 0.14 | 10.0 | 11.3 | 11.3 | 10 | — | 19× over |
| Perfluorooctanoic acid (PFOA) PFAS |
1.35 ppt | 0.09 | 4.0 | 100 | 100 | 0.007 | — | 15× over |
| Bromoform Disinfection byproduct |
0.646 ppb | 0.5 | — | — | — | — | — | 1.3× over |
| Bromochloromethane Other |
0.065 ppb | 0.06 | — | — | — | — | — | 1.1× over |
| Chlorate Disinfection byproduct |
119.8 ppb | 210.0 | — | — | — | — | — | Below guideline |
| 1,4-Dioxane Semi-volatile organic compound |
0.163 ppb | 0.35 | — | — | 50 | 1 | — | Below guideline |
| Antimony Heavy metal |
0.3 ppb | 1.0 | 6.0 | 10 | 20 | 1 | — | Below guideline |
| Molybdenum Other |
1.68 ppb | 40.0 | — | — | — | — | — | Below guideline |
| Manganese Heavy metal |
1.43 ppb | 100.0 | — | 50 | 80 | — | — | Below guideline |
| Perfluorobutanoic Acid (PFBA) PFAS |
2.33 ppt | 1000.0 | — | — | — | — | — | Below guideline |
| Perfluoropentanoic Acid (PFPeA) PFAS |
2.3 ppt | 1000.0 | — | — | — | — | — | Below guideline |
| Perfluorohexanoic Acid (PFHxA) PFAS |
2.25 ppt | 1000.0 | — | — | — | — | — | Below guideline |
| Perfluorobutane sulfonate (PFBS) PFAS |
1.2 ppt | 2000.0 | — | — | — | — | — | Below guideline |
| Strontium Radiological |
0.196 ppb | 1500.0 | — | — | — | — | — | Below guideline |
| Lithium Other |
3.8 ppb | — | — | — | — | — | — | Below guideline |
All values in the unit of the detected level. Red cells indicate the detected level exceeds that standard. Some contaminants have limits in some jurisdictions but not others (shown as —). The "Tested" column shows the year each contaminant sample was collected.
Sources: US EPA, EU Drinking Water Directive 2020/2184, WHO Guidelines (4th ed.), California OEHHA PHGs, EWG Tap Water Database.
PA AMERICAN NORRISTOWN service area
This water system serves 1 community in Montgomery County, Pennsylvania. Click any city for its dedicated tap water quality page.
Find the right filter for NORRISTOWN water
Browse filter categories by water-quality concern. Each option below is NSF-certified for the matched contaminant type.