Community Water System · PWS PA7670088
Shrewsbury Borough
Operator location Shrewsbury, Pennsylvania - UCMR5 detected 8 PFAS compounds (upper-third PFAS panel (> 4 compounds)) on this PWS; SDWIS lists 754 violations and 4,727 people served.
- 4,727
- People served (this PWS)
- 754
- EPA violations (this PWS)
- 5
- Health-based (this PWS)
- 8 PFAS
- UCMR5 (this PWS)
Shrewsbury Borough standing, high SDWIS violation third
UCMR5 detected 8 PFAS compounds - upper-third PFAS panel (> 4 compounds). Corpus terciles use 29,740 systems serving 500+ (the sitemap cohort). Health-based share 1% is middle-third health share (≤ 23%). UCMR5: upper-third PFAS panel (> 4 compounds). Population rank #8,000 of 29,740 among systems serving 500+.
The verdict
Shrewsbury Borough sits in the upper third of the sitemap cohort by violation count (754), so the tables below sample a dense compliance trail rather than a near-clean ledger. Population served is large (4,727; larger served population (> 3,309)), so household exposure scale sits behind the violation mix. Health-based share is 1% (middle-third health share (≤ 23%)). UCMR5 detected 8 PFAS compounds (upper-third PFAS panel (> 4 compounds)).
- #8,000 of 29,740
- Population · /systems
- #283 of 1,340
- Population · PA
- 754
- Total EPA violations on record
- 1%
- Health-based (MCL / treatment failure)
Population ordinals match the sitemap cohort (systems serving 500+, population_served DESC). See methodology · corpus placement.
8 PFAS "forever chemicals" detected in testing under EPA's UCMR5 monitoring program.
System Details
- System Type
- Community
- Owner Type
- Local
- Connections
- 1,878
- County
- York
- School/Daycare
- No
- MCL Violations
- 5
- Monitoring Violations
- 747
- Treatment Tech Violations
- 0
Violation History
Contaminant violations recorded by EPA.
| Contaminant | Category | Count | Latest |
|---|---|---|---|
| Mercury | MR | 49 | 2020 |
| Selenium | MR | 49 | 2020 |
| Arsenic | MR | 48 | 2020 |
| Chromium | MR | 48 | 2020 |
| CYANIDE | MR | 48 | 2020 |
| Fluoride | MR | 48 | 2020 |
| Nickel | MR | 48 | 2020 |
| Antimony, Total | MR | 48 | 2020 |
| Beryllium, Total | MR | 48 | 2020 |
| Thallium, Total | MR | 48 | 2020 |
| Cadmium | MR | 48 | 2020 |
| Barium | MR | 48 | 2020 |
| 2,3,7,8-TCDD | MR | 32 | 2020 |
| Nitrite | MR | 18 | 2015 |
| Groundwater Rule | MR | 12 | 2025 |
| 2,4-D | MR | 9 | 2011 |
| 2,4,5-TP | MR | 9 | 2011 |
| Glyphosate | MR | 8 | 2011 |
| OXAMYL | MR | 8 | 2011 |
| Picloram | MR | 8 | 2011 |
| Carbofuran | MR | 8 | 2011 |
| Pentachlorophenol | MR | 8 | 2011 |
| Endothall | MR | 8 | 2011 |
| Dinoseb | MR | 8 | 2011 |
| Dalapon | MR | 8 | 2011 |
| Diquat | MR | 8 | 2011 |
| Nitrate | MR | 4 | 2013 |
| Chlorine | MR | 3 | 2018 |
| Nitrate | MCL | 3 | 2001 |
| Total Haloacetic Acids (HAA5) | MR | 2 | 2010 |
Violation Count vs. the National Corpus
Shrewsbury Borough has 754 recorded EPA violations, 98% of the 29,740 public water systems serving 500+ people nationwide carry fewer, and 2% carry more. 1% of this system's own violations are health-based (5 of 754), and it ranks #8,000 of 29,740 by population served among that same cohort.
EPA violations vs. the national water-system corpus
Public water systems serving 500+ people (EPA SDWIS)
754 Higher than most more violations than 98% of 29,740 water systems
the national water-system corpus, bucketed by value
Each bar is a band; taller bars hold more water systems. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count and share, and where it sits relative to this entry.
Source EPA SDWIS · 2026-05-15
PFAS Testing Results (UCMR5)
Results from EPA's Fifth Unregulated Contaminant Monitoring Rule. 41 of 464 samples detected PFAS.
| Contaminant | Date | Result | MRL | Status |
|---|---|---|---|---|
| PFUnA | 5/16/2023 | <2.00 ppt | 2.00 ppt | Not Detected |
| PFOS | 5/16/2023 | 11.20 ppt | 4.00 ppt | Detected |
| PFDoA | 5/16/2023 | <3.00 ppt | 3.00 ppt | Not Detected |
| 11Cl-PF3OUdS | 5/16/2023 | <5.00 ppt | 5.00 ppt | Not Detected |
| PFDA | 5/16/2023 | <3.00 ppt | 3.00 ppt | Not Detected |
| PFOA | 5/16/2023 | 5.90 ppt | 4.00 ppt | Detected |
| PFHxA | 5/16/2023 | 4.20 ppt | 3.00 ppt | Detected |
| PFNA | 5/16/2023 | <4.00 ppt | 4.00 ppt | Not Detected |
| PFHxS | 5/16/2023 | <3.00 ppt | 3.00 ppt | Not Detected |
| PFHpA | 5/16/2023 | <3.00 ppt | 3.00 ppt | Not Detected |
| NMeFOSAA | 5/16/2023 | <6.00 ppt | 6.00 ppt | Not Detected |
| NEtFOSAA | 5/16/2023 | <5.00 ppt | 5.00 ppt | Not Detected |
| PFTrDA | 5/16/2023 | <7.00 ppt | 7.00 ppt | Not Detected |
| HFPO-DA | 5/16/2023 | <5.00 ppt | 5.00 ppt | Not Detected |
| 6:2 FTS | 5/16/2023 | <5.00 ppt | 5.00 ppt | Not Detected |
| PFBA | 5/16/2023 | <5.00 ppt | 5.00 ppt | Not Detected |
| PFTA | 5/16/2023 | <8.00 ppt | 8.00 ppt | Not Detected |
| PFBS | 5/16/2023 | 39.30 ppt | 3.00 ppt | Detected |
| PFMPA | 5/16/2023 | <4.00 ppt | 4.00 ppt | Not Detected |
| ADONA | 5/16/2023 | <3.00 ppt | 3.00 ppt | Not Detected |
| 9Cl-PF3ONS | 5/16/2023 | <2.00 ppt | 2.00 ppt | Not Detected |
| 8:2 FTS | 5/16/2023 | <5.00 ppt | 5.00 ppt | Not Detected |
| 4:2 FTS | 5/16/2023 | <3.00 ppt | 3.00 ppt | Not Detected |
| PFPeA | 5/16/2023 | 5.50 ppt | 3.00 ppt | Detected |
| PFMBA | 5/16/2023 | <3.00 ppt | 3.00 ppt | Not Detected |
| PFEESA | 5/16/2023 | <3.00 ppt | 3.00 ppt | Not Detected |
| NFDHA | 5/16/2023 | <20.00 ppt | 20.00 ppt | Not Detected |
| PFPeS | 5/16/2023 | <4.00 ppt | 4.00 ppt | Not Detected |
| PFHpS | 5/16/2023 | <3.00 ppt | 3.00 ppt | Not Detected |
| NMeFOSAA | 5/16/2023 | <6.00 ppt | 6.00 ppt | Not Detected |
| PFDoA | 5/16/2023 | <3.00 ppt | 3.00 ppt | Not Detected |
| PFDA | 5/16/2023 | <3.00 ppt | 3.00 ppt | Not Detected |
| PFOA | 5/16/2023 | <4.00 ppt | 4.00 ppt | Not Detected |
| PFOS | 5/16/2023 | <4.00 ppt | 4.00 ppt | Not Detected |
| PFNA | 5/16/2023 | <4.00 ppt | 4.00 ppt | Not Detected |
| PFHxS | 5/16/2023 | <3.00 ppt | 3.00 ppt | Not Detected |
| PFHpA | 5/16/2023 | <3.00 ppt | 3.00 ppt | Not Detected |
| PFBS | 5/16/2023 | <3.00 ppt | 3.00 ppt | Not Detected |
| PFTrDA | 5/16/2023 | <7.00 ppt | 7.00 ppt | Not Detected |
| PFHxA | 5/16/2023 | <3.00 ppt | 3.00 ppt | Not Detected |
| NEtFOSAA | 5/16/2023 | <5.00 ppt | 5.00 ppt | Not Detected |
| PFHpS | 5/16/2023 | <3.00 ppt | 3.00 ppt | Not Detected |
| 6:2 FTS | 5/16/2023 | <5.00 ppt | 5.00 ppt | Not Detected |
| 4:2 FTS | 5/16/2023 | <3.00 ppt | 3.00 ppt | Not Detected |
| PFPeS | 5/16/2023 | <4.00 ppt | 4.00 ppt | Not Detected |
| PFEESA | 5/16/2023 | <3.00 ppt | 3.00 ppt | Not Detected |
| PFMBA | 5/16/2023 | <3.00 ppt | 3.00 ppt | Not Detected |
| PFPeA | 5/16/2023 | 3.40 ppt | 3.00 ppt | Detected |
| NFDHA | 5/16/2023 | <20.00 ppt | 20.00 ppt | Not Detected |
| 8:2 FTS | 5/16/2023 | <5.00 ppt | 5.00 ppt | Not Detected |
UCMR5 PFAS record for Shrewsbury Borough
Open EPA SDWIS federal reports for PWS PA7670088 to cross-check UCMR5 detections and violation codes; state primacy agencies enforce the Safe Drinking Water Act locally.
Sources: EPA SDWIS · Pennsylvania DEP, Bureau of Safe Drinking Water
Nationwide peers
754 violations · 4,727 served: nearest cross-state SDWIS matches.
Cross-state systems with comparable violation load
Nearest cross-state community systems (500+ served) by total SDWIS violations on record.
Cross-state systems with similar served population
Nearest cross-state systems by EPA SDWIS population_served (same 500+ sitemap gate).
What to do with Shrewsbury Borough
Use this system's EPA-reported record as a starting filter, not a final verdict.
- See how every tracked system in Pennsylvania compares on the same EPA violation measures. Pennsylvania systems
- Check whether PFAS was detected at this system under UCMR5 testing. PFAS guide
- Find and compare another public water system by name or PWSID. Search systems
EPA SDWIS and UCMR5 figures are informational only, not a substitute for a certified lab test of your own tap water.