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Community Water System · PWS LA1017031

Shreveport Water System

Shreveport, Louisiana 71101 - drinking water served from surface water sources to 192,378 people, tracked in EPA SDWIS and UCMR5.

192,378
People served
135
EPA violations
94
Health-based
1 PFAS
UCMR5 result

The verdict

EPA records 135 drinking-water violations at Shreveport Water System, 70% of them health-based - above the Louisiana per-system average, and UCMR5 testing detected 1 PFAS compound.

135
Total EPA violations on record
70%
Health-based (MCL / treatment failure)
192,378
People served by this system
1
PFAS compounds detected (UCMR5)

Water Quality Snapshot: Shreveport Water System

Shreveport Water System is a local-owned community water system that delivers drinking water to 192,378 residents in Shreveport, Louisiana (Caddo Parish County) through 64,126 service connections. Its water is drawn from surface water sources. EPA's Safe Drinking Water Information System records 135 total violations for this system , of which 94 (70%) are health-based, meaning a contaminant exceeded an EPA Maximum Contaminant Level or a required treatment technique failed. A further 27 monitoring and reporting violations are on file. The most recent violation on record dates to 2025.

The most frequently cited contaminant at this system is Interim Enhanced Surface Water Treatment Rule, recorded in 36 violations (TT, health-based). Under EPA's UCMR5 PFAS monitoring program, 1 PFAS compound was detected in samples collected from this system, with a maximum reported concentration of 7.5 ppt (parts per trillion). PFAS are persistent synthetic chemicals linked to health effects at very low exposure levels.

Across Louisiana, EPA tracks 1,234 public water systems serving 5,316,532 people, with 115,060 cumulative violations and 62,164 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 93.2 violations. Statewide, 218 of 265 UCMR5-tested systems have reported PFAS detections (82.3%).

Shreveport Water System's 135 violations sit above the Louisiana average.

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
192,378
Total Violations
135
Health-Based Violations
94
Water Source
Surface Water

System Details

System Type
Community
Owner Type
Local
Connections
64,126
County
Caddo Parish
School/Daycare
No
MCL Violations
34
Monitoring Violations
27
Treatment Tech Violations
60

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Interim Enhanced Surface Water Treatment Rule TT 36 2024
TTHM MCL 22 2025
Surface Water Treatment Rule TT 16 2025
Coliform (TCR) MCL 8 2012
Chlorite MR 8 2014
CARBON, TOTAL TT 8 2015
TTHM MR 7 2023
Chlorite MCL 4 2016
Total Haloacetic Acids (HAA5) MR 4 2014
Chlorine dioxide MR 4 2013
Bromate MR 4 2014

PFAS Testing Results (UCMR5)

Results from EPA's Fifth Unregulated Contaminant Monitoring Rule. 3 of 116 samples detected PFAS.

Contaminant Date Result MRL Status
PFEESA 9/12/2023 <3.00 ppt 3.00 ppt Not Detected
PFMBA 9/12/2023 <3.00 ppt 3.00 ppt Not Detected
PFTA 9/12/2023 <8.00 ppt 8.00 ppt Not Detected
PFTrDA 9/12/2023 <7.00 ppt 7.00 ppt Not Detected
NEtFOSAA 9/12/2023 <5.00 ppt 5.00 ppt Not Detected
NMeFOSAA 9/12/2023 <6.00 ppt 6.00 ppt Not Detected
PFHpS 9/12/2023 <3.00 ppt 3.00 ppt Not Detected
PFPeS 9/12/2023 <4.00 ppt 4.00 ppt Not Detected
PFPeA 9/12/2023 <3.00 ppt 3.00 ppt Not Detected
PFMPA 9/12/2023 <4.00 ppt 4.00 ppt Not Detected
8:2 FTS 9/12/2023 <5.00 ppt 5.00 ppt Not Detected
4:2 FTS 9/12/2023 <3.00 ppt 3.00 ppt Not Detected
6:2 FTS 9/12/2023 <5.00 ppt 5.00 ppt Not Detected
PFBA 9/12/2023 6.20 ppt 5.00 ppt Detected
PFDA 9/12/2023 <3.00 ppt 3.00 ppt Not Detected
PFHpA 9/12/2023 <3.00 ppt 3.00 ppt Not Detected
PFHxS 9/12/2023 <3.00 ppt 3.00 ppt Not Detected
PFNA 9/12/2023 <4.00 ppt 4.00 ppt Not Detected
PFOS 9/12/2023 <4.00 ppt 4.00 ppt Not Detected
NFDHA 9/12/2023 <20.00 ppt 20.00 ppt Not Detected
HFPO-DA 9/12/2023 <5.00 ppt 5.00 ppt Not Detected
PFBS 9/12/2023 <3.00 ppt 3.00 ppt Not Detected
PFOA 9/12/2023 <4.00 ppt 4.00 ppt Not Detected
PFDoA 9/12/2023 <3.00 ppt 3.00 ppt Not Detected
PFHxA 9/12/2023 <3.00 ppt 3.00 ppt Not Detected
PFUnA 9/12/2023 <2.00 ppt 2.00 ppt Not Detected
11Cl-PF3OUdS 9/12/2023 <5.00 ppt 5.00 ppt Not Detected
9Cl-PF3ONS 9/12/2023 <2.00 ppt 2.00 ppt Not Detected
ADONA 9/12/2023 <3.00 ppt 3.00 ppt Not Detected
NMeFOSAA 6/13/2023 <6.00 ppt 6.00 ppt Not Detected
PFHxA 6/13/2023 <3.00 ppt 3.00 ppt Not Detected
PFTA 6/13/2023 <8.00 ppt 8.00 ppt Not Detected
NEtFOSAA 6/13/2023 <5.00 ppt 5.00 ppt Not Detected
PFTrDA 6/13/2023 <7.00 ppt 7.00 ppt Not Detected
ADONA 6/13/2023 <3.00 ppt 3.00 ppt Not Detected
PFHpS 6/13/2023 <3.00 ppt 3.00 ppt Not Detected
NFDHA 6/13/2023 <20.00 ppt 20.00 ppt Not Detected
PFEESA 6/13/2023 <3.00 ppt 3.00 ppt Not Detected
PFMBA 6/13/2023 <3.00 ppt 3.00 ppt Not Detected
PFPeA 6/13/2023 <3.00 ppt 3.00 ppt Not Detected
PFMPA 6/13/2023 <4.00 ppt 4.00 ppt Not Detected
8:2 FTS 6/13/2023 <5.00 ppt 5.00 ppt Not Detected
4:2 FTS 6/13/2023 <3.00 ppt 3.00 ppt Not Detected
6:2 FTS 6/13/2023 <5.00 ppt 5.00 ppt Not Detected
PFDA 6/13/2023 <3.00 ppt 3.00 ppt Not Detected
HFPO-DA 6/13/2023 <5.00 ppt 5.00 ppt Not Detected
9Cl-PF3ONS 6/13/2023 <2.00 ppt 2.00 ppt Not Detected
11Cl-PF3OUdS 6/13/2023 <5.00 ppt 5.00 ppt Not Detected
PFUnA 6/13/2023 <2.00 ppt 2.00 ppt Not Detected
PFPeS 6/13/2023 <4.00 ppt 4.00 ppt 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 Shreveport Water System.

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 LA1017031 on SDWIS

Source: EPA SDWIS Federal Reports Search

State Regulator

Louisiana Drinking Water Authority

Louisiana'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 LA 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
2025 TTHM MCL 22 SDWIS / LA1017031 / 2950
2025 Surface Water Treatment Rule TT 16 SDWIS / LA1017031 / 0200
2024 Interim Enhanced Surface Water Treatment Rule TT 36 SDWIS / LA1017031 / 0300
2023 TTHM MR 7 SDWIS / LA1017031 / 2950
2016 Chlorite MCL 4 SDWIS / LA1017031 / 1009
2015 CARBON, TOTAL TT 8 SDWIS / LA1017031 / 2920
2014 Chlorite MR 8 SDWIS / LA1017031 / 1009
2014 Total Haloacetic Acids (HAA5) MR 4 SDWIS / LA1017031 / 2456
2014 Bromate MR 4 SDWIS / LA1017031 / 1011
2013 Chlorine dioxide MR 4 SDWIS / LA1017031 / 1008
2012 Coliform (TCR) MCL 8 SDWIS / LA1017031 / 3100

How Shreveport Water System Compares

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

Metric Shreveport Water System Louisiana avg Federal benchmark
Total violations 135 93.2 SDWA compliance, any non-zero count is a recorded breach
Health-based violations 94 50.4 Indicates a contaminant exceeded a federal MCL
PFAS detection 1 compound 82.3% EPA final rule (2024): PFOA/PFOS MCL = 4.0 ppt
Population served 192,378 4,308 Sizing context for compliance burden

Sources: EPA SDWIS and EPA National Primary Drinking Water Regulations (40 CFR Part 141). State averages computed across 1,234 regulated public water systems in Louisiana.

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 Shreveport Water System water safe to drink? ▼
Shreveport Water System (PWS ID: LA1017031) has 135 recorded violations in the EPA SDWIS database. PFAS contamination has been detected in UCMR5 testing, with 1 PFAS compound found. This system serves 192,378 people using Surface Water sources.
How many people does Shreveport Water System serve? ▼
Shreveport Water System serves 192,378 people in Shreveport, Louisiana. It is a Local-owned system using Surface Water water sources with 64,126 service connections.
What type of violations does Shreveport Water System have? ▼
Shreveport Water System has 135 total violations: 94 health-based violations (MCL exceedances or treatment failures), 27 monitoring/reporting violations, and 60 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.
Has PFAS been detected in Shreveport Water System water? ▼
Yes. UCMR5 testing detected 1 PFAS compound in Shreveport Water System's water supply: PFBA. PFAS are persistent "forever chemicals" that do not break down in the environment.
What water source does Shreveport Water System use? ▼
Shreveport Water System uses Surface Water 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. PFAS data from EPA UCMR5 monitoring program (2023-2025). 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.