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Non-Transient Non-Community Water System · PWS AZ0414105

Orange Grove Elementary School

Somerton, Arizona 85350 - drinking water served from groundwater sources to 425 people, tracked in EPA SDWIS and UCMR5.

425
People served
65
EPA violations
3
Health-based
Untested
UCMR5 result

The verdict

EPA records 65 drinking-water violations at Orange Grove Elementary School, 5% of them health-based - below the Arizona per-system average.

65
Total EPA violations on record
5%
Health-based (MCL / treatment failure)
425
People served by this system
N/A
PFAS compounds detected (UCMR5)

Water Quality Snapshot: Orange Grove Elementary School

Orange Grove Elementary School is a local-owned non-transient non-community water system that delivers drinking water to 425 residents in Somerton, Arizona (Yuma County) through 2 service connections. Its water is drawn from groundwater sources. EPA's Safe Drinking Water Information System records 65 total violations for this system , of which 3 (5%) are health-based, meaning a contaminant exceeded an EPA Maximum Contaminant Level or a required treatment technique failed. A further 55 monitoring and reporting violations are on file. The most recent violation on record dates to 2024.

The most frequently cited contaminant at this system is Lead and Copper Rule, recorded in 36 violations (MR). This system has not yet been sampled under EPA's UCMR5 PFAS monitoring program, so no PFAS detection data is available here.

Across Arizona, EPA tracks 1,493 public water systems serving 7,322,166 people, with 228,944 cumulative violations and 15,663 health-based violations on record. About 98% of systems in the state carry at least one violation, and state-wide the average per system is 153.3 violations. Statewide, 145 of 152 UCMR5-tested systems have reported PFAS detections (95.4%).

Orange Grove Elementary School's 65 violations sit below the Arizona average.

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
425
Total Violations
65
Health-Based Violations
3
Water Source
Groundwater

System Details

System Type
Non-Transient Non-Community
Owner Type
Local
Connections
2
County
Yuma
School/Daycare
Yes
MCL Violations
0
Monitoring Violations
55
Treatment Tech Violations
3

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Lead and Copper Rule MR 36 2021
Coliform (TCR) MR 16 2015
Nitrate MR 3 2002
LEAD AND COPPER RULE REVISIONS RPT 3 2024
LEAD AND COPPER RULE REVISIONS TT 3 2024
Revised Total Coliform Rule RPT 2 2024
Public Notice Other 1 2024

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 Orange Grove Elementary School.

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 AZ0414105 on SDWIS

Source: EPA SDWIS Federal Reports Search

State Regulator

Arizona Drinking Water Authority

Arizona DEQ, Drinking Water Program is the primacy agency that licenses and inspects Orange Grove Elementary School under EPA-delegated authority.

Open AZ regulator portal

Source: Arizona DEQ, Drinking Water Program

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
2024 LEAD AND COPPER RULE REVISIONS RPT 3 SDWIS / AZ0414105 / 5200
2024 LEAD AND COPPER RULE REVISIONS TT 3 SDWIS / AZ0414105 / 5200
2024 Revised Total Coliform Rule RPT 2 SDWIS / AZ0414105 / 8000
2024 Public Notice Other 1 SDWIS / AZ0414105 / 7500
2021 Lead and Copper Rule MR 36 SDWIS / AZ0414105 / 5000
2015 Coliform (TCR) MR 16 SDWIS / AZ0414105 / 3100
2002 Nitrate MR 3 SDWIS / AZ0414105 / 1040

How Orange Grove Elementary School Compares

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

Metric Orange Grove Elementary School Arizona avg Federal benchmark
Total violations 65 153.3 SDWA compliance, any non-zero count is a recorded breach
Health-based violations 3 10.5 Indicates a contaminant exceeded a federal MCL
PFAS detection None 95.4% EPA final rule (2024): PFOA/PFOS MCL = 4.0 ppt
Population served 425 4,904 Sizing context for compliance burden

Sources: EPA SDWIS and EPA National Primary Drinking Water Regulations (40 CFR Part 141). State averages computed across 1,493 regulated public water systems in Arizona.

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 Orange Grove Elementary School water safe to drink? ▼
Orange Grove Elementary School (PWS ID: AZ0414105) has 65 recorded violations in the EPA SDWIS database. No PFAS contamination was detected in UCMR5 testing. This system serves 425 people using Groundwater sources.
How many people does Orange Grove Elementary School serve? ▼
Orange Grove Elementary School serves 425 people in Somerton, Arizona. It is a Local-owned system using Groundwater water sources with 2 service connections.
What type of violations does Orange Grove Elementary School have? ▼
Orange Grove Elementary School has 65 total violations: 3 health-based violations (MCL exceedances or treatment failures), 55 monitoring/reporting violations, and 3 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.
Has PFAS been detected in Orange Grove Elementary School water? ▼
No PFAS testing data is available for Orange Grove Elementary School under the EPA's UCMR5 monitoring program.
What water source does Orange Grove Elementary School use? ▼
Orange Grove Elementary School uses Groundwater as its primary water source. It is classified as a Non-Transient Non-Community Water System, serving the same people for at least 6 months per year.
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.