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LAS COLINAS ROAD & WATER ASSN

PWS ID: CA4400613 · SANTA MARIA, California 93455

LAS COLINAS ROAD & WATER ASSN serves 70 people in SANTA MARIA, California using Groundwater water sources. It has 75 recorded EPA violations, including 15 health-based violations. No PFAS contamination was detected in UCMR5 testing.

Water Quality Snapshot: LAS COLINAS ROAD & WATER ASSN

LAS COLINAS ROAD & WATER ASSN is a private-owned community water system that delivers drinking water to 70 residents in SANTA MARIA, California (Santa Cruz County) through 24 service connections. Its water is drawn from groundwater sources. EPA's Safe Drinking Water Information System records 75 total violations for this system , of which 15 (20%) are health-based — meaning a contaminant exceeded an EPA Maximum Contaminant Level or a required treatment technique failed. A further 58 monitoring and reporting violations are on file. The most recent violation on record dates to 2017.

The most frequently cited contaminant at this system is Coliform (TCR), recorded in 15 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 California, EPA tracks 7,249 public water systems serving 42,404,883 people, with 153,308 cumulative violations and 63,983 health-based violations on record. About 89% of systems in the state carry at least one violation, and state-wide the average per system is 21.1 violations. LAS COLINAS ROAD & WATER ASSN's 75 violations sit above the California average. Statewide, 447 of 694 UCMR5-tested systems have reported PFAS detections (64.4%). 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
70
Total Violations
75
Health-Based Violations
15
Water Source
Groundwater

System Details

System Type
Community
Owner Type
Private
Connections
24
County
Santa Cruz
School/Daycare
No
MCL Violations
15
Monitoring Violations
58
Treatment Tech Violations
0

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Coliform (TCR) MCL 15 2012
Coliform (TCR) MR 8 2012
Carbofuran MR 2 1997
1,2-DIBROMO-3-CHLOROPROPANE MR 2 1997
2,3,7,8-TCDD MR 2 1997
Total Polychlorinated Biphenyls (PCB) MR 2 1997
Picloram MR 2 1997
Pentachlorophenol MR 2 1997
ETHYLENE DIBROMIDE MR 2 1997
Glyphosate MR 2 1997
Heptachlor MR 2 1997
Simazine MR 2 1997
HEXACHLOROBENZENE MR 2 1997
2,4,5-TP MR 2 1997
Diquat MR 2 1997
Gross Alpha, Excl. Radon and U MR 2 1981
Di(2-ethylhexyl) phthalate MR 2 1997
Lead and Copper Rule MR 2 2017
Hexachlorocyclopentadiene MR 2 1997
2,4-D MR 2 1997
Heptachlor epoxide MR 2 1997
Endothall MR 2 1997
BHC-GAMMA MR 2 1997
Atrazine MR 2 1997
OXAMYL MR 2 1997
Toxaphene MR 2 1997
Methoxychlor MR 2 1997

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 LAS COLINAS ROAD & WATER ASSN.

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 CA4400613 on SDWIS

Source: EPA SDWIS Federal Reports Search

State Regulator

California Drinking Water Authority

California State Water Resources Control Board — Division of Drinking Water is the primacy agency that licenses and inspects LAS COLINAS ROAD & WATER ASSN under EPA-delegated authority.

Open CA regulator portal

Source: California State Water Resources Control Board — Division of Drinking Water

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
2017 Lead and Copper Rule MR 2 SDWIS / CA4400613 / 5000
2012 Coliform (TCR) MCL 15 SDWIS / CA4400613 / 3100
2012 Coliform (TCR) MR 8 SDWIS / CA4400613 / 3100
1997 Carbofuran MR 2 SDWIS / CA4400613 / 2046
1997 1,2-DIBROMO-3-CHLOROPROPANE MR 2 SDWIS / CA4400613 / 2931
1997 2,3,7,8-TCDD MR 2 SDWIS / CA4400613 / 2063
1997 Total Polychlorinated Biphenyls (PCB) MR 2 SDWIS / CA4400613 / 2383
1997 Picloram MR 2 SDWIS / CA4400613 / 2040
1997 Pentachlorophenol MR 2 SDWIS / CA4400613 / 2326
1997 ETHYLENE DIBROMIDE MR 2 SDWIS / CA4400613 / 2946
1997 Glyphosate MR 2 SDWIS / CA4400613 / 2034
1997 Heptachlor MR 2 SDWIS / CA4400613 / 2065
1997 Simazine MR 2 SDWIS / CA4400613 / 2037
1997 HEXACHLOROBENZENE MR 2 SDWIS / CA4400613 / 2274
1997 2,4,5-TP MR 2 SDWIS / CA4400613 / 2110

How LAS COLINAS ROAD & WATER ASSN Compares

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

Metric LAS COLINAS ROAD & WATER ASSN California avg Federal benchmark
Total violations 75 21.1 SDWA compliance — any non-zero count is a recorded breach
Health-based violations 15 8.8 Indicates a contaminant exceeded a federal MCL
PFAS detection None 64.4% EPA final rule (2024): PFOA/PFOS MCL = 4.0 ppt
Population served 70 5,850 Sizing context for compliance burden

Sources: EPA SDWIS and EPA National Primary Drinking Water Regulations (40 CFR Part 141). State averages computed across 7,249 regulated public water systems in California.

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 LAS COLINAS ROAD & WATER ASSN water safe to drink? ▼
LAS COLINAS ROAD & WATER ASSN (PWS ID: CA4400613) has 75 recorded violations in the EPA SDWIS database. No PFAS contamination was detected in UCMR5 testing. This system serves 70 people using Groundwater sources.
How many people does LAS COLINAS ROAD & WATER ASSN serve? ▼
LAS COLINAS ROAD & WATER ASSN serves 70 people in SANTA MARIA, California. It is a Private-owned system using Groundwater water sources with 24 service connections.
What type of violations does LAS COLINAS ROAD & WATER ASSN have? ▼
LAS COLINAS ROAD & WATER ASSN has 75 total violations: 15 health-based violations (MCL exceedances or treatment failures), 58 monitoring/reporting violations, and 0 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.
Has PFAS been detected in LAS COLINAS ROAD & WATER ASSN water? ▼
No PFAS testing data is available for LAS COLINAS ROAD & WATER ASSN under the EPA's UCMR5 monitoring program.
What water source does LAS COLINAS ROAD & WATER ASSN use? ▼
LAS COLINAS ROAD & WATER ASSN 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.

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Data Sources: EPA Safe Drinking Water Information System (SDWIS), Q4 2025. This data is provided for informational purposes only.

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