CITY OF CARRIZO SPRINGS

Q: Is CITY OF CARRIZO SPRINGS water safe to drink?

CITY OF CARRIZO SPRINGS (PWS ID: TX0640002) has 245 recorded violations in the EPA SDWIS database. PFAS contamination has been detected in UCMR5 testing, with 1 PFAS compound found. This system serves 5,830 people using Groundwater sources.

Q: What type of violations does CITY OF CARRIZO SPRINGS have?

CITY OF CARRIZO SPRINGS has 245 total violations: 0 health-based violations (MCL exceedances or treatment failures), 224 monitoring/reporting violations, and 0 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.

Q: Has PFAS been detected in CITY OF CARRIZO SPRINGS water?

Yes. UCMR5 testing detected 1 PFAS compound in CITY OF CARRIZO SPRINGS's water supply: lithium. PFAS are persistent "forever chemicals" that do not break down in the environment.

Q: What water source does CITY OF CARRIZO SPRINGS use?

CITY OF CARRIZO SPRINGS uses Groundwater as its primary water source. It is classified as a Community Water System (CWS), serving residential populations year-round.

Q: 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.

Reviewed byPlainWater Editorial, Drinking Water Quality Editorial Team · June 4, 2026

PWS ID: TX0640002 · CARRIZO SPRINGS, Texas 78834-6329

CITY OF CARRIZO SPRINGS serves 5,830 people in CARRIZO SPRINGS, Texas using Groundwater water sources. It has 245 recorded EPA violations, including 0 health-based violations. PFAS "forever chemicals" were detected in UCMR5 testing (1 compound found).

Water Quality Snapshot: CITY OF CARRIZO SPRINGS

CITY OF CARRIZO SPRINGS is a local-owned community water system that delivers drinking water to 5,830 residents in CARRIZO SPRINGS, Texas (Dimmit County) through 2,111 service connections. Its water is drawn from groundwater sources. EPA's Safe Drinking Water Information System records 245 total violations for this system , of which 0 (0%) are health-based — meaning a contaminant exceeded an EPA Maximum Contaminant Level or a required treatment technique failed. A further 224 monitoring and reporting violations are on file. The most recent violation on record dates to 2019.

The most frequently cited contaminant at this system is Chlorine, recorded in 25 violations (MR). Under EPA's UCMR5 PFAS monitoring program, 1 PFAS compound was detected in samples collected from this system, with a maximum reported concentration of 17.6 ppt. PFAS are persistent synthetic chemicals linked to health effects at very low exposure levels.

Across Texas, EPA tracks 7,351 public water systems serving 33,253,313 people, with 746,210 cumulative violations and 162,945 health-based violations on record. About 90% of systems in the state carry at least one violation, and state-wide the average per system is 101.5 violations. CITY OF CARRIZO SPRINGS's 245 violations sit above the Texas average. Statewide, 1,068 of 1,147 UCMR5-tested systems have reported PFAS detections (93.1%). All figures above are sourced directly from EPA SDWIS and UCMR5 public data releases and are updated as EPA publishes new reporting cycles.

PFAS Detected

1 PFAS "forever chemicals" detected in testing under EPA's UCMR5 monitoring program.

Population Served

5,830

Total Violations

245

Health-Based Violations

Water Source

Groundwater

System Details

System Type: Community
Owner Type: Local
Connections: 2,111
County: Dimmit
School/Daycare: No
MCL Violations: 0
Monitoring Violations: 224
Treatment Tech Violations: 0

Violation History

Contaminant violations recorded by EPA.

Contaminant	Category	Count	Latest
Chlorine	MR	25	2014
Public Notice	Other	14	2017
Nitrate	MR	12	2013
Lead and Copper Rule	MR	10	2019
cis-1,2-Dichloroethylene	MR	3	2006
Xylenes, Total	MR	3	2006
trans-1,2-Dichloroethylene	MR	3	2006
1,1,1-Trichloroethane	MR	3	2006
1,2-Dichloropropane	MR	3	2006
Trichloroethylene	MR	3	2006
1,1,2-Trichloroethane	MR	3	2006
Tetrachloroethylene	MR	3	2006
CHLOROBENZENE	MR	3	2006
Toluene	MR	3	2006
Ethylbenzene	MR	3	2006
Arsenic	MR	3	2006
Barium	MR	3	2006
Chromium	MR	3	2006
Beryllium, Total	MR	3	2006
Thallium, Total	MR	3	2006
Selenium	MR	3	2006
Aldicarb sulfone	MR	3	2009
Carbofuran	MR	3	2009
2,4,5-TP	MR	3	2009
1,2-DIBROMO-3-CHLOROPROPANE	MR	3	2009
Methoxychlor	MR	3	2011
Di(2-ethylhexyl) adipate	MR	3	2011
Simazine	MR	3	2011
Di(2-ethylhexyl) phthalate	MR	3	2011
Hexachlorocyclopentadiene	MR	3	2011

PFAS Testing Results (UCMR5)

Results from EPA's Fifth Unregulated Contaminant Monitoring Rule. 2 of 60 samples detected PFAS.

Contaminant	Date	Result	MRL	Status
PFUnA	6/7/2023	<0.002 µg/L	0.002 µg/L	Not Detected
PFHxS	6/7/2023	<0.003 µg/L	0.003 µg/L	Not Detected
ADONA	6/7/2023	<0.003 µg/L	0.003 µg/L	Not Detected
11Cl-PF3OUdS	6/7/2023	<0.005 µg/L	0.005 µg/L	Not Detected
PFDoA	6/7/2023	<0.003 µg/L	0.003 µg/L	Not Detected
PFDA	6/7/2023	<0.003 µg/L	0.003 µg/L	Not Detected
PFOA	6/7/2023	<0.004 µg/L	0.004 µg/L	Not Detected
HFPO-DA	6/7/2023	<0.005 µg/L	0.005 µg/L	Not Detected
PFNA	6/7/2023	<0.004 µg/L	0.004 µg/L	Not Detected
PFHxA	6/7/2023	<0.003 µg/L	0.003 µg/L	Not Detected
PFHpA	6/7/2023	<0.003 µg/L	0.003 µg/L	Not Detected
PFBS	6/7/2023	<0.003 µg/L	0.003 µg/L	Not Detected
NMeFOSAA	6/7/2023	<0.006 µg/L	0.006 µg/L	Not Detected
NEtFOSAA	6/7/2023	<0.005 µg/L	0.005 µg/L	Not Detected
PFTrDA	6/7/2023	<0.007 µg/L	0.007 µg/L	Not Detected
PFTA	6/7/2023	<0.008 µg/L	0.008 µg/L	Not Detected
PFOS	6/7/2023	<0.004 µg/L	0.004 µg/L	Not Detected
PFHpS	6/7/2023	<0.003 µg/L	0.003 µg/L	Not Detected
9Cl-PF3ONS	6/7/2023	<0.002 µg/L	0.002 µg/L	Not Detected
lithium	6/7/2023	16.7000 µg/L	9 µg/L	Detected
PFBA	6/7/2023	<0.005 µg/L	0.005 µg/L	Not Detected
PFPeS	6/7/2023	<0.004 µg/L	0.004 µg/L	Not Detected
NFDHA	6/7/2023	<0.02 µg/L	0.02 µg/L	Not Detected
PFEESA	6/7/2023	<0.003 µg/L	0.003 µg/L	Not Detected
PFMBA	6/7/2023	<0.003 µg/L	0.003 µg/L	Not Detected
6:2 FTS	6/7/2023	<0.005 µg/L	0.005 µg/L	Not Detected
PFMPA	6/7/2023	<0.004 µg/L	0.004 µg/L	Not Detected
8:2 FTS	6/7/2023	<0.005 µg/L	0.005 µg/L	Not Detected
4:2 FTS	6/7/2023	<0.003 µg/L	0.003 µg/L	Not Detected
PFPeA	6/7/2023	<0.003 µg/L	0.003 µg/L	Not Detected
HFPO-DA	12/20/2023	<0.005 µg/L	0.005 µg/L	Not Detected
ADONA	12/20/2023	<0.003 µg/L	0.003 µg/L	Not Detected
9Cl-PF3ONS	12/20/2023	<0.002 µg/L	0.002 µg/L	Not Detected
11Cl-PF3OUdS	12/20/2023	<0.005 µg/L	0.005 µg/L	Not Detected
PFUnA	12/20/2023	<0.002 µg/L	0.002 µg/L	Not Detected
PFDoA	12/20/2023	<0.003 µg/L	0.003 µg/L	Not Detected
PFOA	12/20/2023	<0.004 µg/L	0.004 µg/L	Not Detected
PFHpA	12/20/2023	<0.003 µg/L	0.003 µg/L	Not Detected
NMeFOSAA	12/20/2023	<0.006 µg/L	0.006 µg/L	Not Detected
PFBS	12/20/2023	<0.003 µg/L	0.003 µg/L	Not Detected
PFHxS	12/20/2023	<0.003 µg/L	0.003 µg/L	Not Detected
PFDA	12/20/2023	<0.003 µg/L	0.003 µg/L	Not Detected
PFBA	12/20/2023	<0.005 µg/L	0.005 µg/L	Not Detected
PFNA	12/20/2023	<0.004 µg/L	0.004 µg/L	Not Detected
PFTrDA	12/20/2023	<0.007 µg/L	0.007 µg/L	Not Detected
6:2 FTS	12/20/2023	<0.005 µg/L	0.005 µg/L	Not Detected
PFOS	12/20/2023	<0.004 µg/L	0.004 µg/L	Not Detected
lithium	12/20/2023	17.6000 µg/L	9 µg/L	Detected
PFHpS	12/20/2023	<0.003 µg/L	0.003 µg/L	Not Detected
PFTA	12/20/2023	<0.008 µg/L	0.008 µg/L	Not Detected

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 CITY OF CARRIZO SPRINGS.

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 TX0640002 on SDWIS

Source: EPA SDWIS Federal Reports Search

State Regulator

Texas Drinking Water Authority

Texas Commission on Environmental Quality (TCEQ) — Drinking Water Watch is the primacy agency that licenses and inspects CITY OF CARRIZO SPRINGS under EPA-delegated authority.

Open TX regulator portal

Source: Texas Commission on Environmental Quality (TCEQ) — Drinking Water Watch

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
2019	Lead and Copper Rule	MR	10	SDWIS / TX0640002 / 5000
2017	Public Notice	Other	14	SDWIS / TX0640002 / 7500
2014	Chlorine	MR	25	SDWIS / TX0640002 / 0999
2013	Nitrate	MR	12	SDWIS / TX0640002 / 1040
2011	Methoxychlor	MR	3	SDWIS / TX0640002 / 2015
2011	Di(2-ethylhexyl) adipate	MR	3	SDWIS / TX0640002 / 2035
2011	Simazine	MR	3	SDWIS / TX0640002 / 2037
2011	Di(2-ethylhexyl) phthalate	MR	3	SDWIS / TX0640002 / 2039
2011	Hexachlorocyclopentadiene	MR	3	SDWIS / TX0640002 / 2042
2011	Heptachlor epoxide	MR	3	SDWIS / TX0640002 / 2067
2011	Benzo(a)pyrene	MR	3	SDWIS / TX0640002 / 2306
2011	Pentachlorophenol	MR	3	SDWIS / TX0640002 / 2326
2011	Toxaphene	MR	3	SDWIS / TX0640002 / 2020
2011	HEXACHLOROBENZENE	MR	3	SDWIS / TX0640002 / 2274
2011	Heptachlor	MR	3	SDWIS / TX0640002 / 2065

How CITY OF CARRIZO SPRINGS Compares

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

Metric	CITY OF CARRIZO SPRINGS	Texas avg	Federal benchmark
Total violations	245	101.5	SDWA compliance — any non-zero count is a recorded breach
Health-based violations	0	22.2	Indicates a contaminant exceeded a federal MCL
PFAS detection	1 compound	93.1%	EPA final rule (2024): PFOA/PFOS MCL = 4.0 ppt
Population served	5,830	4,524	Sizing context for compliance burden

Sources: EPA SDWIS and EPA National Primary Drinking Water Regulations (40 CFR Part 141). State averages computed across 7,351 regulated public water systems in Texas.

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 CITY OF CARRIZO SPRINGS water safe to drink? ▼

CITY OF CARRIZO SPRINGS (PWS ID: TX0640002) has 245 recorded violations in the EPA SDWIS database. PFAS contamination has been detected in UCMR5 testing, with 1 PFAS compound found. This system serves 5,830 people using Groundwater sources.

How many people does CITY OF CARRIZO SPRINGS serve? ▼

CITY OF CARRIZO SPRINGS serves 5,830 people in CARRIZO SPRINGS, Texas. It is a Local-owned system using Groundwater water sources with 2,111 service connections.

What type of violations does CITY OF CARRIZO SPRINGS have? ▼

CITY OF CARRIZO SPRINGS has 245 total violations: 0 health-based violations (MCL exceedances or treatment failures), 224 monitoring/reporting violations, and 0 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.

Has PFAS been detected in CITY OF CARRIZO SPRINGS water? ▼

Yes. UCMR5 testing detected 1 PFAS compound in CITY OF CARRIZO SPRINGS's water supply: lithium. PFAS are persistent "forever chemicals" that do not break down in the environment.

What water source does CITY OF CARRIZO SPRINGS use? ▼

CITY OF CARRIZO SPRINGS 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. PFAS data from EPA UCMR5 monitoring program (2023-2025). This data is provided for informational purposes only.

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