Community Water System · PWS PA5030011
Parker Area Water Auth
Operator location Parker, Pennsylvania - 29% of 488 violations are health-based (upper-third health share (> 23%)); surface water source; 900 served per SDWIS.
- 900
- People served (this PWS) Smaller third of systems
- 488
- EPA violations (this PWS) Upper third of systems
- 142
- Health-based (this PWS) Upper third by health-based share
- Untested
- UCMR5 (this PWS) No UCMR5 result
Parker Area Water Auth standing, high SDWIS violation third
29% of 488 recorded violations are health-based - upper-third health share (> 23%). Corpus terciles use 29,740 systems serving 500+ (the sitemap cohort). Health-based share 29% is upper-third health share (> 23%). Population rank #21,170 of 29,740 among systems serving 500+.
The verdict
Parker Area Water Auth sits in the upper third of the sitemap cohort by violation count (488), so the tables below sample a dense compliance trail rather than a near-clean ledger. Population served is smaller (900; smaller served population (≤ 999)), so each violation row represents a compact service footprint. Health-based share is 29% - most of this ledger is MCL or treatment-technique exceedance. No UCMR5 PFAS test appears for this system in this extract.
- #21,170 of 29,740
- Population · /systems
- #865 of 1,340
- Population · PA
- 488
- Total EPA violations on record
- 29%
- Health-based (MCL / treatment failure)
Population ordinals match the sitemap cohort (systems serving 500+, population_served DESC). See methodology · corpus placement.
Based on EPA SDWIS violation history and UCMR5 PFAS testing only, not water taste, odor, infrastructure age, or contaminants outside the federally tracked set.
System Details
- System Type
- Community
- Owner Type
- Local
- Connections
- 400
- County
- Armstrong
- School/Daycare
- No
- MCL Violations
- 127
- Monitoring Violations
- 294
- Treatment Tech Violations
- 15
Violation History
Contaminant violations recorded by EPA.
| Contaminant | Category | Count | Latest |
|---|---|---|---|
| Surface Water Treatment Rule | MR | 107 | 2025 |
| Total Haloacetic Acids (HAA5) | MCL | 82 | 2025 |
| TTHM | MCL | 45 | 2025 |
| Chlorine | MR | 34 | 2018 |
| Interim Enhanced Surface Water Treatment Rule | MR | 26 | 2019 |
| Total Haloacetic Acids (HAA5) | MR | 26 | 2022 |
| TTHM | MR | 23 | 2022 |
| Public Notice | Other | 22 | 2020 |
| CARBON, TOTAL | MR | 17 | 2024 |
| Revised Total Coliform Rule | RPT | 14 | 2018 |
| CARBON, TOTAL | TT | 10 | 2011 |
| Nitrate | MR | 5 | 1993 |
| Coliform (TCR) | MR | 5 | 2008 |
| Surface Water Treatment Rule | TT | 4 | 2011 |
| 1,2,4-Trichlorobenzene | MR | 2 | 1994 |
| DICHLOROMETHANE | MR | 2 | 1994 |
| o-Dichlorobenzene | MR | 2 | 1994 |
| p-Dichlorobenzene | MR | 2 | 1994 |
| 1,1-Dichloroethylene | MR | 2 | 1994 |
| trans-1,2-Dichloroethylene | MR | 2 | 1994 |
| 1,1,1-Trichloroethane | MR | 2 | 1994 |
| Carbon tetrachloride | MR | 2 | 1994 |
| 1,2-Dichloropropane | MR | 2 | 1994 |
| 1,1,2-Trichloroethane | MR | 2 | 1994 |
| Tetrachloroethylene | MR | 2 | 1994 |
| Benzene | MR | 2 | 1994 |
| Ethylbenzene | MR | 2 | 1994 |
| 1,2-Dichloroethane | MR | 2 | 1994 |
| 2,3,7,8-TCDD | MR | 2 | 2014 |
| Toluene | MR | 2 | 1994 |
Violation Count vs. the National Corpus
Parker Area Water Auth has 488 recorded EPA violations, 95% of the 29,740 public water systems serving 500+ people nationwide carry fewer, and 5% carry more. 29% of this system's own violations are health-based (142 of 488), and it ranks #21,170 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)
488 Higher than most more violations than 95% 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
How many violations vs. how serious, among peer systems
Parker Area Water Auth plotted against 29 peer public water systems (500+ people served), by total violation count (x) and the share of those violations that are health-based (y). The crosshair sits at this sample's own median on each axis. A high violation count does not automatically mean a serious record: most monitoring and reporting violations are minor, not health-based.
Violation volume vs. health-based share
Health-based violations on Parker Area Water Auth
142 health-based rows in the tables above map to MCL or treatment-technique exceedances, verify each contaminant code on the federal SDWIS report for PA5030011.
Sources: EPA SDWIS · Pennsylvania DEP, Bureau of Safe Drinking Water
Nationwide peers
488 violations · 900 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 smaller service footprints
Nearest cross-state systems by EPA SDWIS population_served (same 500+ sitemap gate).
What to do with Parker Area Water Auth
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.
Every figure on PlainWater is rendered directly from EPA SDWIS drinking-water data, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error.