Tap Water Quality Report
Tap water quality in ALLISON PARK, Pennsylvania
Tap water in ALLISON PARK, Pennsylvania receives a grade of C (77/100) from TapWaterSafety.org. It's served by HAMPTON SHALER WATER AUTHORITY. The most significant water quality concerns are: Haloacetic acids (HAA9) significantly above health guideline; Total trihalomethanes (TTHMs) significantly above health guideline; Bromodichloromethane significantly above health guideline. Data sources: EPA SDWIS, EPA ECHO, EWG Tap Water Database.
What's in ALLISON PARK's tap water
Top water quality concerns identified by the EPA and Environmental Working Group across the utility serving ALLISON PARK.
Haloacetic acids (HAA9) significantly above health guideline
Moderate concernHaloacetic acids (HAA9) detected at 14.0 ppb, 234x above the EWG health guideline of 0.06 ppb.
Total trihalomethanes (TTHMs) significantly above health guideline
Moderate concernTotal trihalomethanes (TTHMs) detected at 29.1 ppb, 194x above the EWG health guideline of 0.15 ppb.
Bromodichloromethane significantly above health guideline
Moderate concernBromodichloromethane detected at 9.65 ppb, 161x above the EWG health guideline of 0.06 ppb.
EPA compliance record
Official U.S. EPA records for HAMPTON SHALER WATER AUTHORITY (system ID PA5020019) for the last 3 years. Checked 2026-10-07.
| Rule | Type | Since | Status |
|---|---|---|---|
| Radionuclides and Revised Rad Rule | Missed testing or reporting | 10/01/2023 | Resolved |
Source: U.S. EPA Enforcement and Compliance History Online (ECHO), from the Safe Drinking Water Information System. See EPA's full report.
Recommended filters for ALLISON PARK
Filters matched to the specific contaminants in ALLISON PARK's water supply.
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.
All contaminants detected in ALLISON PARK's tap water
Every contaminant identified, compared side-by-side against US EPA legal limits, the EU Drinking Water Directive (2020/2184), WHO Guidelines, and California's Public Health Goal. 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 |
14.0 ppb | 0.06 | — | — | — | — | — | 234× over |
| Total trihalomethanes (TTHMs) Disinfection byproduct |
29.1 ppb | 0.15 | 80.0 | 100 | — | — | — | 194× over |
| Bromodichloromethane Disinfection byproduct |
9.65 ppb | 0.06 | — | — | — | — | — | 161× over |
| Dibromochloromethane Disinfection byproduct |
7.58 ppb | 0.1 | — | — | — | — | — | 76× over |
| Haloacetic acids (HAA5) Disinfection byproduct |
6.98 ppb | 0.1 | 60.0 | 60 | — | — | — | 70× over |
| Dibromoacetic acid Disinfection byproduct |
1.62 ppb | 0.03 | — | — | — | — | — | 54× over |
| Chloroform Disinfection byproduct |
10.6 ppb | 0.4 | — | — | — | — | — | 26× over |
| Dichloroacetic acid Disinfection byproduct |
3.95 ppb | 0.2 | — | — | — | — | — | 20× over |
| Trichloroacetic acid Disinfection byproduct |
1.54 ppb | 0.1 | — | — | — | — | — | 15× over |
| Chromium (hexavalent) Heavy metal |
0.224 ppb | 0.02 | — | — | — | — | — | 11× over |
| Bromoform Disinfection byproduct |
1.33 ppb | 0.5 | — | — | — | — | — | 2.7× over |
| Nitrate Inorganic |
0.153 ppm | 0.14 | 10.0 | 11.3 | 11.3 | 10 | — | 1.1× over |
| Chlorate Disinfection byproduct |
74.7 ppb | 210.0 | — | — | — | — | — | Below guideline |
| Bromochloromethane* Other |
0.015 ppb | 0.06 | — | — | — | — | — | Below guideline |
| 1,4-Dioxane Semi-volatile organic compound |
0.0406 ppb | 0.35 | — | — | 50 | 1 | — | Below guideline |
| Barium Heavy metal |
67.8 ppb | 700.0 | 2000.0 | — | 1300 | 2000 | — | Below guideline |
| Monochloroacetic acid Disinfection byproduct |
0.844 ppb | 53.0 | — | — | — | — | — | Below guideline |
| Manganese Heavy metal |
1.5 ppb | 100.0 | — | 50 | 80 | — | — | Below guideline |
| Monobromoacetic acid Disinfection byproduct |
0.0709 ppb | 25.0 | — | — | — | — | — | Below guideline |
| Molybdenum Other |
0.11 ppb | 40.0 | — | — | — | — | — | Below guideline |
| 1,1-Dichloroethane Volatile organic compound |
0.005 ppb | 3.0 | — | — | — | — | — | Below guideline |
| Vanadium Other |
0.0115 ppb | 21.0 | — | — | — | — | — | Below guideline |
| Strontium Radiological |
0.156 ppb | 1500.0 | — | — | — | — | — | Below guideline |
| cis-1,2-Dichloroethylene Volatile organic compound |
0.667 ppb | — | 70.0 | — | — | — | — | Below guideline |
| Fluoride* Inorganic |
0.482 ppm | — | 4.0 | 1.5 | 1.5 | — | — | Below guideline |
| Lithium Other |
1.5 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, California OEHHA PHGs, EWG Tap Water Database.
Treatment plant contact info
For service issues, water quality concerns, or to request a Consumer Confidence Report from HAMPTON SHALER WATER AUTHORITY.