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GRANITE CONSTRUCTION

PWS ID: NV0002202 · SPARKS, Nevada 89431

GRANITE CONSTRUCTION serves 50 people in SPARKS, Nevada using Groundwater water sources. It has 100 recorded EPA violations, including 16 health-based violations. No PFAS contamination was detected in UCMR5 testing.

Water Quality Snapshot: GRANITE CONSTRUCTION

GRANITE CONSTRUCTION is a private-owned non-transient non-community water system that delivers drinking water to 50 residents in SPARKS, Nevada (Washoe County) through 1 service connections. Its water is drawn from groundwater sources. EPA's Safe Drinking Water Information System records 100 total violations for this system , of which 16 (16%) are health-based — meaning a contaminant exceeded an EPA Maximum Contaminant Level or a required treatment technique failed. A further 80 monitoring and reporting violations are on file. The most recent violation on record dates to 2023.

The most frequently cited contaminant at this system is Arsenic, recorded in 16 violations (MCL, health-based). This system has not yet been sampled under EPA's UCMR5 PFAS monitoring program, so no PFAS detection data is available here.

Across Nevada, EPA tracks 589 public water systems serving 3,455,285 people, with 56,333 cumulative violations and 6,657 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 95.6 violations. GRANITE CONSTRUCTION's 100 violations sit above the Nevada average. Statewide, 50 of 57 UCMR5-tested systems have reported PFAS detections (87.7%). 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
100
Health-Based Violations
16
Water Source
Groundwater

System Details

System Type
Non-Transient Non-Community
Owner Type
Private
Connections
1
County
Washoe
School/Daycare
No
MCL Violations
16
Monitoring Violations
80
Treatment Tech Violations
0

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Arsenic MCL 16 2018
Lead and Copper Rule MR 13 2023
Revised Total Coliform Rule RPT 4 2021
Nitrate MR 3 2011
trans-1,2-Dichloroethylene MR 3 2011
1,2-Dichloroethane MR 3 2011
1,2-Dichloropropane MR 3 2011
Trichloroethylene MR 3 2011
1,1,2-Trichloroethane MR 3 2011
Tetrachloroethylene MR 3 2011
CHLOROBENZENE MR 3 2011
Benzene MR 3 2011
1,2,4-Trichlorobenzene MR 3 2011
Ethylbenzene MR 3 2011
Styrene MR 3 2011
DICHLOROMETHANE MR 3 2011
p-Dichlorobenzene MR 3 2011
1,1-Dichloroethylene MR 3 2011
cis-1,2-Dichloroethylene MR 3 2011
Xylenes, Total MR 3 2011
Toluene MR 3 2011
1,1,1-Trichloroethane MR 3 2011
Carbon tetrachloride MR 3 2011
Vinyl chloride MR 3 2011
o-Dichlorobenzene MR 3 2011
Revised Total Coliform Rule MON 1 2019

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 GRANITE CONSTRUCTION.

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 NV0002202 on SDWIS

Source: EPA SDWIS Federal Reports Search

State Regulator

Nevada Drinking Water Authority

Nevada'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 NV 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
2023 Lead and Copper Rule MR 13 SDWIS / NV0002202 / 5000
2021 Revised Total Coliform Rule RPT 4 SDWIS / NV0002202 / 8000
2019 Revised Total Coliform Rule MON 1 SDWIS / NV0002202 / 8000
2018 Arsenic MCL 16 SDWIS / NV0002202 / 1005
2011 Nitrate MR 3 SDWIS / NV0002202 / 1040
2011 trans-1,2-Dichloroethylene MR 3 SDWIS / NV0002202 / 2979
2011 1,2-Dichloroethane MR 3 SDWIS / NV0002202 / 2980
2011 1,2-Dichloropropane MR 3 SDWIS / NV0002202 / 2983
2011 Trichloroethylene MR 3 SDWIS / NV0002202 / 2984
2011 1,1,2-Trichloroethane MR 3 SDWIS / NV0002202 / 2985
2011 Tetrachloroethylene MR 3 SDWIS / NV0002202 / 2987
2011 CHLOROBENZENE MR 3 SDWIS / NV0002202 / 2989
2011 Benzene MR 3 SDWIS / NV0002202 / 2990
2011 1,2,4-Trichlorobenzene MR 3 SDWIS / NV0002202 / 2378
2011 Ethylbenzene MR 3 SDWIS / NV0002202 / 2992

How GRANITE CONSTRUCTION Compares

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

Metric GRANITE CONSTRUCTION Nevada avg Federal benchmark
Total violations 100 95.6 SDWA compliance — any non-zero count is a recorded breach
Health-based violations 16 11.3 Indicates a contaminant exceeded a federal MCL
PFAS detection None 87.7% EPA final rule (2024): PFOA/PFOS MCL = 4.0 ppt
Population served 50 5,866 Sizing context for compliance burden

Sources: EPA SDWIS and EPA National Primary Drinking Water Regulations (40 CFR Part 141). State averages computed across 589 regulated public water systems in Nevada.

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 GRANITE CONSTRUCTION water safe to drink? ▼
GRANITE CONSTRUCTION (PWS ID: NV0002202) has 100 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 GRANITE CONSTRUCTION serve? ▼
GRANITE CONSTRUCTION serves 50 people in SPARKS, Nevada. It is a Private-owned system using Groundwater water sources with 1 service connections.
What type of violations does GRANITE CONSTRUCTION have? ▼
GRANITE CONSTRUCTION has 100 total violations: 16 health-based violations (MCL exceedances or treatment failures), 80 monitoring/reporting violations, and 0 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.
Has PFAS been detected in GRANITE CONSTRUCTION water? ▼
No PFAS testing data is available for GRANITE CONSTRUCTION under the EPA's UCMR5 monitoring program.
What water source does GRANITE CONSTRUCTION use? ▼
GRANITE CONSTRUCTION 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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