Community Water System · PWS CA5800823
Riselen Park
Operator location Sacramento, California - smaller served population (≤ 999) at 100 people served; 13 SDWIS violations on record from groundwater sources.
- 100
- People served (this PWS)
- 13
- EPA violations (this PWS)
- 2
- Health-based (this PWS)
- Untested
- UCMR5 (this PWS)
Riselen Park standing, low SDWIS violation third
100 people served (SDWIS) - smaller served population (≤ 999). Corpus terciles use 29,740 systems serving 500+ (the sitemap cohort). Health-based share 15% is middle-third health share (≤ 23%).
The verdict
Riselen Park is in the lower third by violation count (13; lower-third violation load (≤ 21 violations)). A low count does not mean the system is unmonitored - monitoring and reporting violations still appear in SDWIS. Population served is smaller (100; smaller served population (≤ 999)), so each violation row represents a compact service footprint. Health-based share is 15% (middle-third health share (≤ 23%)). No UCMR5 PFAS test appears for this system in this extract.
- 13
- Total EPA violations on record
- 15%
- Health-based (MCL / treatment failure)
- 100
- People served by this PWS (SDWIS)
- N/A
- PFAS compounds detected (UCMR5)
Population ordinals match the sitemap cohort (systems serving 500+, population_served DESC). See methodology · corpus placement.
System Details
- System Type
- Community
- Owner Type
- Private
- Connections
- 35
- County
- Yuba
- School/Daycare
- No
- MCL Violations
- 2
- Monitoring Violations
- 9
- Treatment Tech Violations
- 0
Violation History
Contaminant violations recorded by EPA.
| Contaminant | Category | Count | Latest |
|---|---|---|---|
| Nitrate | MR | 2 | 2017 |
| TTHM | MR | 2 | 2019 |
| Gross Alpha, Excl. Radon and U | MR | 2 | 1981 |
| Total Haloacetic Acids (HAA5) | MR | 2 | 2019 |
| Coliform (TCR) | MCL | 2 | 2014 |
| Lead and Copper Rule | MR | 1 | 1993 |
Violation Count vs. the National Corpus
Riselen Park has 13 recorded EPA violations, 22% of the 29,740 public water systems serving 500+ people nationwide carry fewer, and 76% carry more. 15% of this system's own violations are health-based (2 of 13), and it ranks unranked by population served among that same cohort.
EPA violations vs. the national water-system corpus
Public water systems serving 500+ people (EPA SDWIS)
13 Among the lowest violation counts fewer violations than 76% 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 Riselen Park
EPA SDWIS lists 100 people served and 35 connections for this PWS, confirm the service-area footprint on the federal report before comparing to municipal census totals.
Sources: EPA SDWIS · California State Water Resources Control Board, Division of Drinking Water
Nationwide peers
13 violations · 100 served: nearest cross-state SDWIS matches.
Cross-state systems with similarly light violation ledgers
Nearest cross-state community systems (500+ served) by total SDWIS violations on record.
What to do with Riselen Park
Use this system's EPA-reported record as a starting filter, not a final verdict.
- See how every tracked system in California compares on the same EPA violation measures. California 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.