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States → EPA Region 9 — Tribal Water Systems

Community Water System · PWS 090600146

Rincon Paradise Creek

Valley Center, EPA Region 9 — Tribal Water Systems 92082 - drinking water served from groundwater sources to 305 people, tracked in EPA SDWIS and UCMR5.

305
People served
157
EPA violations
4
Health-based
Untested
UCMR5 result

The verdict

EPA records 157 drinking-water violations at Rincon Paradise Creek, 3% of them health-based.

157
Total EPA violations on record
3%
Health-based (MCL / treatment failure)
305
People served by this system
N/A
PFAS compounds detected (UCMR5)

Water Quality Snapshot: Rincon Paradise Creek

Rincon Paradise Creek is a native american-owned community water system that delivers drinking water to 305 residents in Valley Center, EPA Region 9 — Tribal Water Systems through 111 service connections. Its water is drawn from groundwater sources. EPA's Safe Drinking Water Information System records 157 total violations for this system , of which 4 (3%) are health-based, meaning a contaminant exceeded an EPA Maximum Contaminant Level or a required treatment technique failed. A further 77 monitoring and reporting violations are on file. The most recent violation on record dates to 2019.

The most frequently cited contaminant at this system is Coliform (TCR), recorded in 9 violations (MR). This system has not yet been sampled under EPA's UCMR5 PFAS monitoring program, so no PFAS detection data is available here.

EPA Region 9 — Tribal Water Systems has thousands of regulated public water systems tracked by EPA under the Safe Drinking Water Act.

All figures above are sourced directly from EPA SDWIS and UCMR5 public data releases and are updated as EPA publishes new reporting cycles.

Population Served
305
Total Violations
157
Health-Based Violations
4
Water Source
Groundwater

System Details

System Type
Community
Owner Type
Native American
Connections
111
School/Daycare
No
MCL Violations
4
Monitoring Violations
77
Treatment Tech Violations
0

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Coliform (TCR) MR 9 2005
Nitrate MR 7 2013
Coliform (TCR) MCL 4 2006
Nitrite MR 2 1998
Asbestos MR 2 1998
Di(2-ethylhexyl) phthalate MR 2 2019
Carbofuran MR 2 1998
Atrazine MR 2 1998
LASSO MR 2 1998
Consumer Confidence Rule Other 2 2004
Pentachlorophenol MR 2 1998
Beryllium, Total MR 1 1998
CYANIDE MR 1 1998
Thallium, Total MR 1 1998
Methoxychlor MR 1 1998
Glyphosate MR 1 1998
Di(2-ethylhexyl) adipate MR 1 1998
Simazine MR 1 1998
Picloram MR 1 1998
Hexachlorocyclopentadiene MR 1 1998
2,4-D MR 1 1998
2,4,5-TP MR 1 1998
1,2-DIBROMO-3-CHLOROPROPANE MR 1 1996
ETHYLENE DIBROMIDE MR 1 1996
Xylenes, Total MR 1 1998
Chlordane MR 1 1998
DICHLOROMETHANE MR 1 1998
o-Dichlorobenzene MR 1 1998
1,1-Dichloroethylene MR 1 1998
trans-1,2-Dichloroethylene MR 1 1998

Verify This Water System

The figures above are aggregated from EPA's public databases. To verify the underlying records, or to file a complaint, request a Consumer Confidence Report, or check current monitoring status, go directly to the federal and state regulators that enforce the Safe Drinking Water Act for Rincon Paradise Creek.

Federal Source of Truth

EPA SDWIS, Federal Reports

EPA's Safe Drinking Water Information System (SDWIS) holds the federal compliance record for every regulated public water system. Open the system-level report by PWS ID:

View PWS ID 090600146 on SDWIS

Source: EPA SDWIS Federal Reports Search

State Regulator

EPA Region 9 — Tribal Water Systems Drinking Water Authority

EPA Region 9 — Tribal Water Systems's primacy agency administers the Safe Drinking Water Act locally. Search EPA SDWIS for the current state contact, or use the state's public health or environment department portal.

Find 09 regulator via EPA SDWIS

Violation Timeline

Each row links to the EPA SDWIS public record for verification. Cross-reference the contaminant code on EPA's federal report to see violation dates, return-to-compliance status, and enforcement actions.

Year (latest) Contaminant Category Count EPA Record
2019 Di(2-ethylhexyl) phthalate MR 2 SDWIS / 090600146 / 2039
2013 Nitrate MR 7 SDWIS / 090600146 / 1040
2006 Coliform (TCR) MCL 4 SDWIS / 090600146 / 3100
2005 Coliform (TCR) MR 9 SDWIS / 090600146 / 3100
2004 Consumer Confidence Rule Other 2 SDWIS / 090600146 / 7000
1998 Nitrite MR 2 SDWIS / 090600146 / 1041
1998 Asbestos MR 2 SDWIS / 090600146 / 1094
1998 Carbofuran MR 2 SDWIS / 090600146 / 2046
1998 Atrazine MR 2 SDWIS / 090600146 / 2050
1998 LASSO MR 2 SDWIS / 090600146 / 2051
1998 Pentachlorophenol MR 2 SDWIS / 090600146 / 2326
1998 Beryllium, Total MR 1 SDWIS / 090600146 / 1075
1998 CYANIDE MR 1 SDWIS / 090600146 / 1024
1998 Thallium, Total MR 1 SDWIS / 090600146 / 1085
1998 Methoxychlor MR 1 SDWIS / 090600146 / 2015

How Rincon Paradise Creek Compares

Cross-reference this system's record against state averages and the federal MCL framework for context.

Metric Rincon Paradise Creek EPA Region 9 — Tribal Water Systems avg Federal benchmark
Total violations 157 - SDWA compliance, any non-zero count is a recorded breach
Health-based violations 4 - Indicates a contaminant exceeded a federal MCL
PFAS detection None - EPA final rule (2024): PFOA/PFOS MCL = 4.0 ppt
Population served 305 - Sizing context for compliance burden

Sources: EPA SDWIS and EPA National Primary Drinking Water Regulations (40 CFR Part 141). State averages computed across all regulated public water systems in EPA Region 9 — Tribal Water Systems.

Federal MCL reference, Safe Drinking Water Act thresholds ▼
Contaminant Federal MCL / Action Level Note
Lead 0 mg/L (Action Level: 0.015 mg/L) Lead and Copper Rule treatment technique
Arsenic 0.010 mg/L (10 ppb) Health-based MCL since 2006
Total Coliform Treatment technique (RTCR) Indicator organism, monitoring trigger
PFOA / PFOS (PFAS) 4.0 ppt each (final 2024 rule) Compliance deadline 2029 (EPA proposed extending to 2031, not yet final as of May 2026)
Nitrate (as N) 10 mg/L Acute health risk for infants

Frequently Asked Questions

Is Rincon Paradise Creek water safe to drink? ▼
Rincon Paradise Creek (PWS ID: 090600146) has 157 recorded violations in the EPA SDWIS database. No PFAS contamination was detected in UCMR5 testing. This system serves 305 people using Groundwater sources.
How many people does Rincon Paradise Creek serve? ▼
Rincon Paradise Creek serves 305 people in Valley Center, EPA Region 9 — Tribal Water Systems. It is a Native American-owned system using Groundwater water sources with 111 service connections.
What type of violations does Rincon Paradise Creek have? ▼
Rincon Paradise Creek has 157 total violations: 4 health-based violations (MCL exceedances or treatment failures), 77 monitoring/reporting violations, and 0 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.
Has PFAS been detected in Rincon Paradise Creek water? ▼
No PFAS testing data is available for Rincon Paradise Creek under the EPA's UCMR5 monitoring program.
What water source does Rincon Paradise Creek use? ▼
Rincon Paradise Creek uses Groundwater as its primary water source. It is classified as a Community Water System (CWS), serving residential populations year-round.
Where does this data come from? ▼
All data comes from the EPA Safe Drinking Water Information System (SDWIS) and the UCMR5 PFAS monitoring program. SDWIS tracks compliance for all public water systems regulated under the Safe Drinking Water Act.
Data Sources: EPA Safe Drinking Water Information System (SDWIS), Q4 2025. This data is provided for informational purposes only.

Read our methodology - how this data is sourced, computed, and verified.

Data sourced from EPA SDWIS and UCMR5 PFAS monitoring data. See our methodology for details. Retrieved and formatted by PlainWater Editorial

Every figure on PlainWater is rendered directly from EPA SDWIS drinking-water data, no number is typed in by an editor. This system's figures are rendered directly from EPA SDWIS data, no figure is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error.