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OMNI MONTESORRI SCHOOL

PWS ID: NC2090016 · CHARLOTTE, North Carolina 28277

OMNI MONTESORRI SCHOOL serves 50 people in CHARLOTTE, North Carolina using Groundwater water sources. It has 422 recorded EPA violations, including 5 health-based violations. No PFAS contamination was detected in UCMR5 testing.

Water Quality Snapshot: OMNI MONTESORRI SCHOOL

OMNI MONTESORRI SCHOOL is a private-owned non-transient non-community water system that delivers drinking water to 50 residents in CHARLOTTE, North Carolina (Union County) through 1 service connections. Its water is drawn from groundwater sources. EPA's Safe Drinking Water Information System records 422 total violations for this system , of which 5 (1%) are health-based — meaning a contaminant exceeded an EPA Maximum Contaminant Level or a required treatment technique failed. A further 415 monitoring and reporting violations are on file. The most recent violation on record dates to 2025.

The most frequently cited contaminant at this system is Lead and Copper Rule, recorded in 21 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 North Carolina, EPA tracks 5,020 public water systems serving 9,877,724 people, with 524,053 cumulative violations and 38,492 health-based violations on record. About 93% of systems in the state carry at least one violation, and state-wide the average per system is 104.4 violations. OMNI MONTESORRI SCHOOL's 422 violations sit above the North Carolina average. Statewide, 174 of 287 UCMR5-tested systems have reported PFAS detections (60.6%). 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
50
Total Violations
422
Health-Based Violations
5
Water Source
Groundwater

System Details

System Type
Non-Transient Non-Community
Owner Type
Private
Connections
1
County
Union
School/Daycare
Yes
MCL Violations
0
Monitoring Violations
415
Treatment Tech Violations
5

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Lead and Copper Rule MR 21 2025
Picloram MR 11 2020
Heptachlor epoxide MR 11 2020
2,4-D MR 11 2020
Endrin MR 11 2020
HEXACHLOROBENZENE MR 11 2020
Benzo(a)pyrene MR 11 2020
Pentachlorophenol MR 11 2020
1,2-DIBROMO-3-CHLOROPROPANE MR 11 2020
ETHYLENE DIBROMIDE MR 11 2020
BHC-GAMMA MR 11 2020
Heptachlor MR 11 2020
Simazine MR 11 2020
Hexachlorocyclopentadiene MR 11 2020
Dinoseb MR 11 2020
Dalapon MR 11 2020
Methoxychlor MR 11 2020
Atrazine MR 11 2020
Di(2-ethylhexyl) phthalate MR 11 2020
LASSO MR 11 2020
Di(2-ethylhexyl) adipate MR 11 2020
2,4,5-TP MR 11 2020
Total Polychlorinated Biphenyls (PCB) MR 6 2011
Chlordane MR 6 2011
1,2,4-Trichlorobenzene MR 6 2011
cis-1,2-Dichloroethylene MR 6 2011
trans-1,2-Dichloroethylene MR 6 2011
1,2-Dichloroethane MR 6 2011
1,1,1-Trichloroethane MR 6 2011
Trichloroethylene MR 6 2011

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 OMNI MONTESORRI 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 NC2090016 on SDWIS

Source: EPA SDWIS Federal Reports Search

State Regulator

North Carolina Drinking Water Authority

North Carolina DEQ — Public Water Supply Section is the primacy agency that licenses and inspects OMNI MONTESORRI SCHOOL under EPA-delegated authority.

Open NC regulator portal

Source: North Carolina DEQ — Public Water Supply Section

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
2025 Lead and Copper Rule MR 21 SDWIS / NC2090016 / 5000
2025 Nitrate MR 2 SDWIS / NC2090016 / 1040
2024 LEAD AND COPPER RULE REVISIONS TT 2 SDWIS / NC2090016 / 5200
2024 LEAD AND COPPER RULE REVISIONS RPT 2 SDWIS / NC2090016 / 5200
2022 Lead and Copper Rule TT 3 SDWIS / NC2090016 / 5000
2020 Picloram MR 11 SDWIS / NC2090016 / 2040
2020 Heptachlor epoxide MR 11 SDWIS / NC2090016 / 2067
2020 2,4-D MR 11 SDWIS / NC2090016 / 2105
2020 Endrin MR 11 SDWIS / NC2090016 / 2005
2020 HEXACHLOROBENZENE MR 11 SDWIS / NC2090016 / 2274
2020 Benzo(a)pyrene MR 11 SDWIS / NC2090016 / 2306
2020 Pentachlorophenol MR 11 SDWIS / NC2090016 / 2326
2020 1,2-DIBROMO-3-CHLOROPROPANE MR 11 SDWIS / NC2090016 / 2931
2020 ETHYLENE DIBROMIDE MR 11 SDWIS / NC2090016 / 2946
2020 BHC-GAMMA MR 11 SDWIS / NC2090016 / 2010

How OMNI MONTESORRI SCHOOL Compares

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

Metric OMNI MONTESORRI SCHOOL North Carolina avg Federal benchmark
Total violations 422 104.4 SDWA compliance — any non-zero count is a recorded breach
Health-based violations 5 7.7 Indicates a contaminant exceeded a federal MCL
PFAS detection None 60.6% EPA final rule (2024): PFOA/PFOS MCL = 4.0 ppt
Population served 50 1,968 Sizing context for compliance burden

Sources: EPA SDWIS and EPA National Primary Drinking Water Regulations (40 CFR Part 141). State averages computed across 5,020 regulated public water systems in North Carolina.

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
Nitrate (as N) 10 mg/L Acute health risk for infants

Frequently Asked Questions

Is OMNI MONTESORRI SCHOOL water safe to drink? ▼
OMNI MONTESORRI SCHOOL (PWS ID: NC2090016) has 422 recorded violations in the EPA SDWIS database. No PFAS contamination was detected in UCMR5 testing. This system serves 50 people using Groundwater sources.
How many people does OMNI MONTESORRI SCHOOL serve? ▼
OMNI MONTESORRI SCHOOL serves 50 people in CHARLOTTE, North Carolina. It is a Private-owned system using Groundwater water sources with 1 service connections.
What type of violations does OMNI MONTESORRI SCHOOL have? ▼
OMNI MONTESORRI SCHOOL has 422 total violations: 5 health-based violations (MCL exceedances or treatment failures), 415 monitoring/reporting violations, and 5 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.
Has PFAS been detected in OMNI MONTESORRI SCHOOL water? ▼
No PFAS testing data is available for OMNI MONTESORRI SCHOOL under the EPA's UCMR5 monitoring program.
What water source does OMNI MONTESORRI SCHOOL use? ▼
OMNI MONTESORRI 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.

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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.

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