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States → Colorado

Non-Transient Non-Community Water System · PWS CO0262735

Tagawa Greenhouses Inc

Windsor, Colorado 80550 - drinking water served from groundwater sources to 250 people, tracked in EPA SDWIS and UCMR5.

250
People served
278
EPA violations
12
Health-based
Untested
UCMR5 result

The verdict

EPA records 278 drinking-water violations at Tagawa Greenhouses Inc, 4% of them health-based - above the Colorado per-system average.

278
Total EPA violations on record
4%
Health-based (MCL / treatment failure)
250
People served by this system
N/A
PFAS compounds detected (UCMR5)

Water Quality Snapshot: Tagawa Greenhouses Inc

Tagawa Greenhouses Inc is a private-owned non-transient non-community water system that delivers drinking water to 250 residents in Windsor, Colorado (Weld County) through 5 service connections. Its water is drawn from groundwater sources. EPA's Safe Drinking Water Information System records 278 total violations for this system , of which 12 (4%) are health-based, meaning a contaminant exceeded an EPA Maximum Contaminant Level or a required treatment technique failed. A further 266 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 Coliform (TCR), recorded in 16 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 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%).

Tagawa Greenhouses Inc's 278 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
250
Total Violations
278
Health-Based Violations
12
Water Source
Groundwater

System Details

System Type
Non-Transient Non-Community
Owner Type
Private
Connections
5
County
Weld
School/Daycare
No
MCL Violations
12
Monitoring Violations
266
Treatment Tech Violations
0

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Coliform (TCR) MR 16 2008
Nitrate MCL 12 2024
Lead and Copper Rule MR 9 2022
Arsenic MR 7 2011
Barium MR 7 2011
Cadmium MR 7 2011
Mercury MR 7 2011
Antimony, Total MR 7 2011
Beryllium, Total MR 7 2011
Thallium, Total MR 7 2011
Selenium MR 7 2011
Nickel MR 7 2011
Chromium MR 7 2011
Nitrate MR 6 2013
ETHYLENE DIBROMIDE MR 6 2011
1,2-DIBROMO-3-CHLOROPROPANE MR 6 2011
1,2,4-Trichlorobenzene MR 3 2011
Vinyl chloride MR 3 2011
1,1-Dichloroethylene MR 3 2011
trans-1,2-Dichloroethylene MR 3 2011
1,2-Dichloroethane MR 3 2011
1,1,1-Trichloroethane MR 3 2011
Carbon tetrachloride MR 3 2011
1,2-Dichloropropane MR 3 2011
Trichloroethylene MR 3 2011
1,1,2-Trichloroethane MR 3 2011
CHLOROBENZENE MR 3 2011
Benzene MR 3 2011
Ethylbenzene MR 3 2011
Styrene MR 3 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 Tagawa Greenhouses Inc.

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 CO0262735 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 Tagawa Greenhouses Inc 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
2024 Nitrate MCL 12 SDWIS / CO0262735 / 1040
2022 Lead and Copper Rule MR 9 SDWIS / CO0262735 / 5000
2013 Nitrate MR 6 SDWIS / CO0262735 / 1040
2011 Arsenic MR 7 SDWIS / CO0262735 / 1005
2011 Barium MR 7 SDWIS / CO0262735 / 1010
2011 Cadmium MR 7 SDWIS / CO0262735 / 1015
2011 Mercury MR 7 SDWIS / CO0262735 / 1035
2011 Antimony, Total MR 7 SDWIS / CO0262735 / 1074
2011 Beryllium, Total MR 7 SDWIS / CO0262735 / 1075
2011 Thallium, Total MR 7 SDWIS / CO0262735 / 1085
2011 Selenium MR 7 SDWIS / CO0262735 / 1045
2011 Nickel MR 7 SDWIS / CO0262735 / 1036
2011 Chromium MR 7 SDWIS / CO0262735 / 1020
2011 ETHYLENE DIBROMIDE MR 6 SDWIS / CO0262735 / 2946
2011 1,2-DIBROMO-3-CHLOROPROPANE MR 6 SDWIS / CO0262735 / 2931

How Tagawa Greenhouses Inc Compares

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

Metric Tagawa Greenhouses Inc Colorado avg Federal benchmark
Total violations 278 108.9 SDWA compliance, any non-zero count is a recorded breach
Health-based violations 12 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 250 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 Tagawa Greenhouses Inc water safe to drink? ▼
Tagawa Greenhouses Inc (PWS ID: CO0262735) has 278 recorded violations in the EPA SDWIS database. No PFAS contamination was detected in UCMR5 testing. This system serves 250 people using Groundwater sources.
How many people does Tagawa Greenhouses Inc serve? ▼
Tagawa Greenhouses Inc serves 250 people in Windsor, Colorado. It is a Private-owned system using Groundwater water sources with 5 service connections.
What type of violations does Tagawa Greenhouses Inc have? ▼
Tagawa Greenhouses Inc has 278 total violations: 12 health-based violations (MCL exceedances or treatment failures), 266 monitoring/reporting violations, and 0 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.
Has PFAS been detected in Tagawa Greenhouses Inc water? ▼
No PFAS testing data is available for Tagawa Greenhouses Inc under the EPA's UCMR5 monitoring program.
What water source does Tagawa Greenhouses Inc use? ▼
Tagawa Greenhouses Inc 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.