Community Water System · PWS WA5374700
Royal City Water
Operator location Royal City, Washington - larger served population (> 3,309) at 3,389 people served; 61 SDWIS violations on record from groundwater sources.
- 3,389
- People served (this PWS)
- 61
- EPA violations (this PWS)
- 1
- Health-based (this PWS)
- Untested
- UCMR5 (this PWS)
Royal City Water standing, mid SDWIS violation third
3,389 people served (SDWIS) - larger served population (> 3,309). Corpus terciles use 29,740 systems serving 500+ (the sitemap cohort). Health-based share 2% is middle-third health share (≤ 23%). Population rank #9,819 of 29,740 among systems serving 500+.
The verdict
Royal City Water lands in the middle third by violation volume (61), large enough for peer comparisons without matching the fleet's heaviest ledgers. Population served is large (3,389; larger served population (> 3,309)), so household exposure scale sits behind the violation mix. Health-based share is 2% (middle-third health share (≤ 23%)). No UCMR5 PFAS test appears for this system in this extract.
- #9,819 of 29,740
- Population · /systems
- #243 of 766
- Population · WA
- 61
- Total EPA violations on record
- 2%
- Health-based (MCL / treatment failure)
Population ordinals match the sitemap cohort (systems serving 500+, population_served DESC). See methodology · corpus placement.
System Details
- System Type
- Community
- Owner Type
- Local
- Connections
- 622
- County
- Grant
- School/Daycare
- No
- MCL Violations
- 1
- Monitoring Violations
- 55
- Treatment Tech Violations
- 0
Violation History
Contaminant violations recorded by EPA.
| Contaminant | Category | Count | Latest |
|---|---|---|---|
| Nitrate | MR | 11 | 2020 |
| Diquat | MR | 11 | 2008 |
| Lead and Copper Rule | MR | 10 | 2007 |
| Coliform (TCR) | MR | 7 | 1996 |
| Consumer Confidence Rule | Other | 4 | 2023 |
| Barium | MR | 1 | 2002 |
| Cadmium | MR | 1 | 2002 |
| Fluoride | MR | 1 | 2002 |
| Nickel | MR | 1 | 2002 |
| Selenium | MR | 1 | 2002 |
| Antimony, Total | MR | 1 | 2002 |
| Beryllium, Total | MR | 1 | 2002 |
| 1,2-DIBROMO-3-CHLOROPROPANE | MR | 1 | 2020 |
| ETHYLENE DIBROMIDE | MR | 1 | 2020 |
| TTHM | MR | 1 | 2018 |
| Gross Alpha, Excl. Radon and U | MR | 1 | 1979 |
| Mercury | MR | 1 | 2002 |
| Chromium | MR | 1 | 2002 |
| CYANIDE | MR | 1 | 2002 |
| Total Haloacetic Acids (HAA5) | MR | 1 | 2018 |
| Coliform (TCR) | MCL | 1 | 1992 |
| Thallium, Total | MR | 1 | 2002 |
Violation Count vs. the National Corpus
Royal City Water has 61 recorded EPA violations, 62% of the 29,740 public water systems serving 500+ people nationwide carry fewer, and 38% carry more. 2% of this system's own violations are health-based (1 of 61), and it ranks #9,819 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)
61 Around the middle fewer violations than 38% 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
Population served record for Royal City Water
EPA SDWIS lists 3,389 people served and 622 connections for this PWS, confirm the service-area footprint on the federal report before comparing to municipal census totals.
Sources: EPA SDWIS · Washington State Department of Health, Office of Drinking Water
Nationwide peers
61 violations · 3,389 served: nearest cross-state SDWIS matches.
Cross-state systems near this violation count
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 Royal City Water
Use this system's EPA-reported record as a starting filter, not a final verdict.
- See how every tracked system in Washington compares on the same EPA violation measures. Washington 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.