Updated 2026-10-15

County water report

Tulare County Water Quality: 8 Cities Ranked by the Records

Name: Tulare County Water Quality Data (2026)
Creator: PurityMap
License: https://creativecommons.org/licenses/by/4.0/

Tulare County, California: 8 city reports built from EPA and utility records. A county has many suppliers; each city shows the system that serves it.

Find my system Open on the map Private wells in Tulare County

Across the county's systems

Highest result for each contaminant

One row per contaminant: the highest result any system in the county reported, against its limit. Open a row for the systems behind it.

Perfluorooctanesulfonic acid (PFOS)Detected in 3 systems of 8 tested4.0 ng/L federal MCL (2024) · US EPAHighest23 ng/L

PORTERVILLE, CITY OF23 ng/LSample date: 2023-05-15 to 2023-11-20
LINDSAY, CITY OF12 ng/LSample date: 2025-03-24 to 2025-12-23
CWS - VISALIA6.9 ng/LSample date: 2024-01-16 to 2025-08-22
DINUBA, CITY OFNot detected · below 4.0 ng/L lab reporting limitSample date: 2023-01-18 to 2023-06-27
EXETER, CITY OFNot detected · below 4.0 ng/L lab reporting limitSample date: 2026-05-19
FARMERSVILLE, CITY OFNot detected · below 4.0 ng/L lab reporting limitSample date: 2024-10-21 to 2025-04-21
KINGSBURG, CITY OFNot detected · below 4.0 ng/L lab reporting limitSample date: 2023-01-24 to 2023-07-25
TULARE, CITY OFNot detected · below 4.0 ng/L lab reporting limitSample date: 2023-02-09 to 2024-12-16

Perfluorooctanoic acid (PFOA)Detected in 3 systems of 8 tested4.0 ng/L federal MCL (2024) · US EPAHighest22 ng/L

PORTERVILLE, CITY OF22 ng/LSample date: 2023-05-15 to 2023-11-20
LINDSAY, CITY OF9.2 ng/LSample date: 2025-03-24 to 2025-12-23
CWS - VISALIA4.2 ng/LSample date: 2024-01-16 to 2025-08-22
DINUBA, CITY OFNot detected · below 4.0 ng/L lab reporting limitSample date: 2023-01-18 to 2023-06-27
EXETER, CITY OFNot detected · below 4.0 ng/L lab reporting limitSample date: 2026-05-19
FARMERSVILLE, CITY OFNot detected · below 4.0 ng/L lab reporting limitSample date: 2024-10-21 to 2025-04-21
KINGSBURG, CITY OFNot detected · below 4.0 ng/L lab reporting limitSample date: 2023-01-24 to 2023-07-25
TULARE, CITY OFNot detected · below 4.0 ng/L lab reporting limitSample date: 2023-02-09 to 2024-12-16

LithiumDetected in 1 system of 8 tested10 µg/L EPA health reference level (screening, not a legal limit) · US EPAHighest11.6 µg/L

PORTERVILLE, CITY OF11.6 µg/LSample date: 2023-05-15 to 2023-11-20
CWS - VISALIANot detected · below 9.0 µg/L lab reporting limitSample date: 2024-01-16 to 2025-08-22
DINUBA, CITY OFNot detected · below 9.0 µg/L lab reporting limitSample date: 2023-01-18 to 2023-06-27
EXETER, CITY OFNot detected · below 9.0 µg/L lab reporting limitSample date: 2026-05-19
FARMERSVILLE, CITY OFNot detected · below 9.0 µg/L lab reporting limitSample date: 2024-10-21 to 2025-04-21
KINGSBURG, CITY OFNot detected · below 9.0 µg/L lab reporting limitSample date: 2023-01-24 to 2023-07-25
LINDSAY, CITY OFNot detected · below 9.0 µg/L lab reporting limitSample date: 2025-03-24 to 2025-12-23
TULARE, CITY OFNot detected · below 9.0 µg/L lab reporting limitSample date: 2023-02-09 to 2024-12-16

Lead (90th percentile)Detected in 2 systems of 8 tested15 µg/L federal action level · US EPAHighest11 µg/L

EXETER, CITY OF11 µg/LMonitoring period: 2024–2026 (still open)
FARMERSVILLE, CITY OF1.3 µg/LMonitoring period: 2023–2025
CWS - VISALIANot detectedMonitoring period: 2023–2025
DINUBA, CITY OFNot detectedMonitoring period: 2023–2025
KINGSBURG, CITY OFNot detectedMonitoring period: 2023–2025
LINDSAY, CITY OFNot detectedMonitoring period: 2024–2024
PORTERVILLE, CITY OFNot detectedMonitoring period: 2023–2025
TULARE, CITY OFNot detectedMonitoring period: 2024–2026 (still open)

Perfluorohexanesulfonic acid (PFHxS)Detected in 1 system of 8 tested10 ng/L federal MCL (2024) · US EPAHighest3.6 ng/L

PORTERVILLE, CITY OF3.6 ng/LSample date: 2023-05-15 to 2023-11-20
CWS - VISALIANot detected · below 3.0 ng/L lab reporting limitSample date: 2024-01-16 to 2025-08-22
DINUBA, CITY OFNot detected · below 3.0 ng/L lab reporting limitSample date: 2023-01-18 to 2023-06-27
EXETER, CITY OFNot detected · below 3.0 ng/L lab reporting limitSample date: 2026-05-19
FARMERSVILLE, CITY OFNot detected · below 3.0 ng/L lab reporting limitSample date: 2024-10-21 to 2025-04-21
KINGSBURG, CITY OFNot detected · below 3.0 ng/L lab reporting limitSample date: 2023-01-24 to 2023-07-25
LINDSAY, CITY OFNot detected · below 3.0 ng/L lab reporting limitSample date: 2025-03-24 to 2025-12-23
TULARE, CITY OFNot detected · below 3.0 ng/L lab reporting limitSample date: 2023-02-09 to 2024-12-16

Perfluorobutanesulfonic acid (PFBS)Detected in 3 systems of 8 tested2,000 ng/L EPA health advisory (screening, not a legal limit) · US EPAHighest9.1 ng/L

PORTERVILLE, CITY OF9.1 ng/LSample date: 2023-05-15 to 2023-11-20
CWS - VISALIA4.3 ng/LSample date: 2024-01-16 to 2025-08-22
LINDSAY, CITY OF4 ng/LSample date: 2025-03-24 to 2025-12-23
DINUBA, CITY OFNot detected · below 3.0 ng/L lab reporting limitSample date: 2023-01-18 to 2023-06-27
EXETER, CITY OFNot detected · below 3.0 ng/L lab reporting limitSample date: 2026-05-19
FARMERSVILLE, CITY OFNot detected · below 3.0 ng/L lab reporting limitSample date: 2024-10-21 to 2025-04-21
KINGSBURG, CITY OFNot detected · below 3.0 ng/L lab reporting limitSample date: 2023-01-24 to 2023-07-25
TULARE, CITY OFNot detected · below 3.0 ng/L lab reporting limitSample date: 2023-02-09 to 2024-12-16

Perfluorohexanoic acid (PFHxA)Detected in 2 systems of 8 tested400,000 ng/L Michigan EGLE state MCL (strictest US state) · Michigan EGLEHighest15 ng/L

CWS - VISALIA15 ng/LSample date: 2024-01-16 to 2025-08-22
PORTERVILLE, CITY OF8.5 ng/LSample date: 2023-05-15 to 2023-11-20
DINUBA, CITY OFNot detected · below 3.0 ng/L lab reporting limitSample date: 2023-01-18 to 2023-06-27
EXETER, CITY OFNot detected · below 3.0 ng/L lab reporting limitSample date: 2026-05-19
FARMERSVILLE, CITY OFNot detected · below 3.0 ng/L lab reporting limitSample date: 2024-10-21 to 2025-04-21
KINGSBURG, CITY OFNot detected · below 3.0 ng/L lab reporting limitSample date: 2023-01-24 to 2023-07-25
LINDSAY, CITY OFNot detected · below 3.0 ng/L lab reporting limitSample date: 2025-03-24 to 2025-12-23
TULARE, CITY OFNot detected · below 3.0 ng/L lab reporting limitSample date: 2023-02-09 to 2024-12-16

Perfluorobutanoic acid (PFBA)Detected in 2 systems of 8 testedNo federal or state limit; shown for transparencyHighest28 ng/L

CWS - VISALIA28 ng/LSample date: 2024-01-16 to 2025-08-22
PORTERVILLE, CITY OF5.8 ng/LSample date: 2023-05-15 to 2023-11-20
DINUBA, CITY OFNot detected · below 5.0 ng/L lab reporting limitSample date: 2023-01-18 to 2023-06-27
EXETER, CITY OFNot detected · below 5.0 ng/L lab reporting limitSample date: 2026-05-19
FARMERSVILLE, CITY OFNot detected · below 5.0 ng/L lab reporting limitSample date: 2024-10-21 to 2025-04-21
KINGSBURG, CITY OFNot detected · below 5.0 ng/L lab reporting limitSample date: 2023-01-24 to 2023-07-25
LINDSAY, CITY OFNot detected · below 5.0 ng/L lab reporting limitSample date: 2025-03-24 to 2025-12-23
TULARE, CITY OFNot detected · below 5.0 ng/L lab reporting limitSample date: 2023-02-09 to 2024-12-16

2 more contaminants detectedShow

Perfluoroheptanoic acid (PFHpA)Detected in 1 system of 8 testedNo federal or state limit; shown for transparencyHighest6.5 ng/L

PORTERVILLE, CITY OF6.5 ng/LSample date: 2023-05-15 to 2023-11-20
CWS - VISALIANot detected · below 3.0 ng/L lab reporting limitSample date: 2024-01-16 to 2025-08-22
DINUBA, CITY OFNot detected · below 3.0 ng/L lab reporting limitSample date: 2023-01-18 to 2023-06-27
EXETER, CITY OFNot detected · below 3.0 ng/L lab reporting limitSample date: 2026-05-19
FARMERSVILLE, CITY OFNot detected · below 3.0 ng/L lab reporting limitSample date: 2024-10-21 to 2025-04-21
KINGSBURG, CITY OFNot detected · below 3.0 ng/L lab reporting limitSample date: 2023-01-24 to 2023-07-25
LINDSAY, CITY OFNot detected · below 3.0 ng/L lab reporting limitSample date: 2025-03-24 to 2025-12-23
TULARE, CITY OFNot detected · below 3.0 ng/L lab reporting limitSample date: 2023-02-09 to 2024-12-16

Perfluoropentanoic acid (PFPeA)Detected in 3 systems of 8 testedNo federal or state limit; shown for transparencyHighest34 ng/L

CWS - VISALIA34 ng/LSample date: 2024-01-16 to 2025-08-22
PORTERVILLE, CITY OF9.3 ng/LSample date: 2023-05-15 to 2023-11-20
LINDSAY, CITY OF3.6 ng/LSample date: 2025-03-24 to 2025-12-23
DINUBA, CITY OFNot detected · below 3.0 ng/L lab reporting limitSample date: 2023-01-18 to 2023-06-27
EXETER, CITY OFNot detected · below 3.0 ng/L lab reporting limitSample date: 2026-05-19
FARMERSVILLE, CITY OFNot detected · below 3.0 ng/L lab reporting limitSample date: 2024-10-21 to 2025-04-21
KINGSBURG, CITY OFNot detected · below 3.0 ng/L lab reporting limitSample date: 2023-01-24 to 2023-07-25
TULARE, CITY OFNot detected · below 3.0 ng/L lab reporting limitSample date: 2023-02-09 to 2024-12-16

21 PFAS tested, none detected in any systemShow

Tested in these 8 systems: CWS - VISALIA, DINUBA, CITY OF, EXETER, CITY OF, FARMERSVILLE, CITY OF, KINGSBURG, CITY OF, LINDSAY, CITY OF, PORTERVILLE, CITY OF, TULARE, CITY OF

11-Chloroeicosafluoro-3-oxaundecane-1-sulfonic acid (11Cl-PF3OUdS)
1H, 1H, 2H, 2H-perfluorodecane sulfonic acid (8:2 FTS)
1H, 1H, 2H, 2H-perfluorohexane sulfonic acid (4:2 FTS)
1H, 1H, 2H, 2H-perfluorooctane sulfonic acid (6:2 FTS)
4,8-Dioxa-3H-perfluorononanoic acid (ADONA)
9-Chlorohexadecafluoro-3-oxanone-1-sulfonic acid (9Cl-PF3ONS)
Hexafluoropropylene oxide dimer acid (HFPO-DA) (GenX chemicals)
N-ethyl perfluorooctanesulfonamidoacetic acid (NEtFOSAA)
N-methyl perfluorooctanesulfonamidoacetic acid (NMeFOSAA)
Nonafluoro-3,6-dioxaheptanoic acid (NFDHA)
Perfluoro (2-ethoxyethane) sulfonic acid (PFEESA)
Perfluoro-3-methoxypropanoic acid (PFMPA)
Perfluoro-4-methoxybutanoic acid (PFMBA)
Perfluorodecanoic acid (PFDA)
Perfluorododecanoic acid (PFDoA)
Perfluoroheptanesulfonic acid (PFHpS)
Perfluorononanoic acid (PFNA)
Perfluoropentanesulfonic acid (PFPeS)
Perfluorotetradecanoic acid (PFTA)
Perfluorotridecanoic acid (PFTrDA)
Perfluoroundecanoic acid (PFUnA)

8 cities

Cities ranked by the records

1
TulareTULARE, CITY OF
No PFAS detected
Open city report →
2
KingsburgKINGSBURG, CITY OF
No PFAS detected
Open city report →
3
ExeterEXETER, CITY OF
No PFAS detectedLead below action level
Open city report →
4
DinubaDINUBA, CITY OF
No PFAS detected
Open city report →
5
FarmersvilleFARMERSVILLE, CITY OF
No PFAS detectedLead below action level
Open city report →
6
VisaliaCWS - VISALIA
PFAS sample above a limit
Open city report →
7
PortervillePORTERVILLE, CITY OF
PFAS sample above a limit
Open city report →
8
LindsayLINDSAY, CITY OF
PFAS sample above a limit
Open city report →

Showing 6 of 8 cities · scores are system-level, not tap tests

Ranked by the Purity Score of each city's main water system, highest first. Scores belong to water systems; there is no county score. The score is computed only from contaminants measured in the published EPA record, so this ranks the record, not which city's water is safest. How the score works.

PFAS in Tulare County3 of 8 city reports had a PFAS sample above a 2024 EPA limit

Porterville23 ng/L
Lindsay12 ng/L
Visalia6.9 ng/L

4.0 ng/L federal MCL · PFOS, ng/LPFAS in California

Lead

0of 8 cities above the 15 µg/L action level

Based on each system's 90th-percentile result. Lead from household plumbing isn't in this record.

Lead in California

Who supplies the county

Largest water systems

VisaliaCWS - VISALIA · CA5410016
153,522 served
TulareTULARE, CITY OF · CA5410015
72,241 served
PortervillePORTERVILLE, CITY OF · CA5410010
63,487 served
DinubaDINUBA, CITY OF · CA5410002
27,641 served
KingsburgKINGSBURG, CITY OF · CA1010019
13,540 served
LindsayLINDSAY, CITY OF · CA5410006
12,659 served
ExeterEXETER, CITY OF · CA5410003
11,169 served
FarmersvilleFARMERSVILLE, CITY OF · CA5410004
10,243 served

Questions

Frequently asked

How does Tulare County tap water compare across cities?

PurityMap ranks 8 cities in Tulare County by the Purity Score of each city's main water system, computed only from contaminants measured in the published EPA record. Scores belong to water systems, not to cities. The highest published score is Tulare's main water system: TULARE, CITY OF · PWSID CA5410015 · Purity Score 100 (Excellent) · Confidence: moderate · Assessed at the water-system level. The ranking compares the records, not which city's water is safest, and your own tap can differ with household plumbing.

How many Tulare County cities had a PFAS sample above a 2024 EPA limit?

3 of 8 Tulare County city reports had a PFAS sample above a 2024 EPA limit in EPA's UCMR 5 testing, including Porterville (PFOS 23 ng/L), Lindsay (PFOS 12 ng/L), Visalia (PFOS 6.9 ng/L). That limit is judged on a yearly average, and water systems have until 2029 to meet it, so a single sample is not a violation. PFAS were detected at any level in 3.

Is there lead in Tulare County tap water?

Utilities report lead as a 90th-percentile result from home taps. 2 of 8 Tulare County cities reported a value above zero, and none was above the 15 µg/L federal action level. Lead usually comes from a building's own pipes and fixtures, so only a test at your tap tells you what you drink.

Have Tulare County water systems had drinking-water violations?

1 city in Tulare County has a health-based violation in the federal SDWIS record within about the last ten years. Each city report lists the contaminant, year and whether it was resolved.

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