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Community Water System · PWS CO0150400

Granada WA

Lamar, Colorado 81052 - drinking water served from groundwater sources to 378 people, tracked in EPA SDWIS and UCMR5.

378
People served
327
EPA violations
56
Health-based
Untested
UCMR5 result

The verdict

EPA records 327 drinking-water violations at Granada WA, 17% of them health-based - above the Colorado per-system average.

327
Total EPA violations on record
17%
Health-based (MCL / treatment failure)
378
People served by this system
N/A
PFAS compounds detected (UCMR5)

Water Quality Snapshot: Granada WA

Granada WA is a private-owned community water system that delivers drinking water to 378 residents in Lamar, Colorado (Prowers County) through 150 service connections. Its water is drawn from groundwater sources. EPA's Safe Drinking Water Information System records 327 total violations for this system , of which 56 (17%) are health-based, meaning a contaminant exceeded an EPA Maximum Contaminant Level or a required treatment technique failed. A further 262 monitoring and reporting violations are on file. The most recent violation on record dates to 2021.

The most frequently cited contaminant at this system is Combined Radium (-226 and -228), recorded in 34 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 Colorado, EPA tracks 2,193 public water systems serving 7,473,456 people, with 238,796 cumulative violations and 30,589 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 108.9 violations. Statewide, 98 of 163 UCMR5-tested systems have reported PFAS detections (60.1%).

Granada WA's 327 violations sit above the Colorado 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
378
Total Violations
327
Health-Based Violations
56
Water Source
Groundwater

System Details

System Type
Community
Owner Type
Private
Connections
150
County
Prowers
School/Daycare
No
MCL Violations
52
Monitoring Violations
262
Treatment Tech Violations
4

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Combined Radium (-226 and -228) MCL 34 2021
Coliform (TCR) MR 23 2012
Coliform (TCR) MCL 18 2013
Fluoride MR 12 2005
Arsenic MR 12 2005
Chromium MR 12 2005
Antimony, Total MR 12 2005
Thallium, Total MR 12 2005
Selenium MR 12 2005
Cadmium MR 12 2005
Mercury MR 12 2005
Nickel MR 12 2005
Barium MR 12 2005
Beryllium, Total MR 12 2005
Chlorine MR 7 2017
E. COLI MR 7 2017
Stage 1 Disinfectants and Disinfection Byproducts Rule TT 4 2016
Methoxychlor MR 3 2005
Dalapon MR 3 2005
Endothall MR 3 2005
Di(2-ethylhexyl) adipate MR 3 2005
Simazine MR 3 2005
Di(2-ethylhexyl) phthalate MR 3 2005
Picloram MR 3 2005
Aldicarb sulfone MR 3 2005
Aldicarb MR 3 2005
Atrazine MR 3 2005
Heptachlor epoxide MR 3 2005
2,4-D MR 3 2005
Pentachlorophenol MR 3 2005

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 Granada WA.

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 CO0150400 on SDWIS

Source: EPA SDWIS Federal Reports Search

State Regulator

Colorado Drinking Water Authority

Colorado Department of Public Health and Environment, Water Quality Control is the primacy agency that licenses and inspects Granada WA under EPA-delegated authority.

Open CO regulator portal

Source: Colorado Department of Public Health and Environment, Water Quality Control

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
2021 Combined Radium (-226 and -228) MCL 34 SDWIS / CO0150400 / 4010
2019 Public Notice Other 2 SDWIS / CO0150400 / 7500
2017 Chlorine MR 7 SDWIS / CO0150400 / 0999
2017 E. COLI MR 7 SDWIS / CO0150400 / 3014
2016 Stage 1 Disinfectants and Disinfection Byproducts Rule TT 4 SDWIS / CO0150400 / 0400
2013 Coliform (TCR) MCL 18 SDWIS / CO0150400 / 3100
2012 Coliform (TCR) MR 23 SDWIS / CO0150400 / 3100
2005 Fluoride MR 12 SDWIS / CO0150400 / 1025
2005 Arsenic MR 12 SDWIS / CO0150400 / 1005
2005 Chromium MR 12 SDWIS / CO0150400 / 1020
2005 Antimony, Total MR 12 SDWIS / CO0150400 / 1074
2005 Thallium, Total MR 12 SDWIS / CO0150400 / 1085
2005 Selenium MR 12 SDWIS / CO0150400 / 1045
2005 Cadmium MR 12 SDWIS / CO0150400 / 1015
2005 Mercury MR 12 SDWIS / CO0150400 / 1035

How Granada WA Compares

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

Metric Granada WA Colorado avg Federal benchmark
Total violations 327 108.9 SDWA compliance, any non-zero count is a recorded breach
Health-based violations 56 13.9 Indicates a contaminant exceeded a federal MCL
PFAS detection None 60.1% EPA final rule (2024): PFOA/PFOS MCL = 4.0 ppt
Population served 378 3,408 Sizing context for compliance burden

Sources: EPA SDWIS and EPA National Primary Drinking Water Regulations (40 CFR Part 141). State averages computed across 2,193 regulated public water systems in Colorado.

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 Granada WA water safe to drink? ▼
Granada WA (PWS ID: CO0150400) has 327 recorded violations in the EPA SDWIS database. No PFAS contamination was detected in UCMR5 testing. This system serves 378 people using Groundwater sources.
How many people does Granada WA serve? ▼
Granada WA serves 378 people in Lamar, Colorado. It is a Private-owned system using Groundwater water sources with 150 service connections.
What type of violations does Granada WA have? ▼
Granada WA has 327 total violations: 56 health-based violations (MCL exceedances or treatment failures), 262 monitoring/reporting violations, and 4 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.
Has PFAS been detected in Granada WA water? ▼
No PFAS testing data is available for Granada WA under the EPA's UCMR5 monitoring program.
What water source does Granada WA use? ▼
Granada WA 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.