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Tap water quality report

Improvement District No. 1

EPA monitoring tested this supplier for 58 contaminants and detected 19. A detection doesn't automatically mean the water is unsafe — the level and EPA source for each is below.

58
contaminants tested
19
detected
200
people served
31
health-based violations
California rankingsLead in CaliforniaPFAS in California
Water source
Surface water
Ownership
Local government
Counties served
Tulare

Compliance record

Formal violations the EPA has on file for this supplier. A health-based violation means a contaminant limit or a required treatment was breached; the rest are monitoring or reporting failures — still violations, but not a measured health risk.

31
health-based violations
110
violations on file
0
still open
ViolationTypeStatusPeriod
TT Health-based Resolved 2014-03-01 → 2014-03-31
TT Health-based Resolved 2014-03-01 → 2014-03-31
TT Health-based Resolved 2014-02-01 → 2014-02-28
TT Health-based Resolved 2014-02-01 → 2014-02-28
TT Health-based Resolved 2014-01-01 → 2014-01-31
TT Health-based Resolved 2014-01-01 → 2014-01-31
TT Health-based Resolved 2011-10-01
TT Health-based Resolved 2011-10-01
TT Health-based Resolved 2011-10-01
MCL Health-based Resolved 2011-04-01 → 2011-04-30

Other contaminants detected

Each bar shows the measured level as a share of the EPA limit: green is well under, amber is close to it, red is over. For lead and copper the limit applies to exactly the 90th-percentile figure shown, so red there means a real exceedance. For everything else the limit applies to a running annual average while the figure is the 95th percentile of this system's samples — over 100% is worth reading, but is not by itself a violation. Where a single sample came in higher than that percentile, it is noted under the bar. Formal violations are listed separately.
ContaminantLevel vs EPA limitDetection rateSourcePeriod
Nitrate
4900 µg/L 49%
of the EPA limit 10000 µg/L
worst single sample: 5100 µg/L
42/56 SYR4 2012–2019
Combined Uranium
35.4873 µg/L 118%
of the EPA limit, at the 95th percentile of samples — 30 µg/L
worst single sample: 50.809 µg/L
23/23 SYR4 2012–2019
Lead
0.0 mg/L 0%
of the EPA limit 0.0150 mg/L
 11/11 LCR 2023
Fluoride
260 µg/L 6.5%
of the EPA limit 4000 µg/L
worst single sample: 300 µg/L
9/15 SYR4 2014–2019
Bromodichloromethane
9.62 µg/L
No EPA limit set
worst single sample: 11 µg/L
5/6 SYR4 2015–2019
Dibromochloromethane
11.6 µg/L
No EPA limit set
worst single sample: 13 µg/L
5/6 SYR4 2015–2019
TTHM
30.6 µg/L 38%
of the EPA limit 80 µg/L
worst single sample: 34 µg/L
5/6 SYR4 2015–2019
Chloroform
5.225 µg/L
No EPA limit set
worst single sample: 5.3 µg/L
4/6 SYR4 2015–2019
Dibromoacetic Acid
5.89 µg/L
No EPA limit set
worst single sample: 6.4 µg/L
4/5 SYR4 2015–2019
Lead
8.25 µg/L 55%
of the EPA limit 15 µg/L
worst single sample: 8.7 µg/L
4/16 SYR4 2014–2019
Total Haloacetic Acids (HAA5)
13.905 µg/L 23%
of the EPA limit 60 µg/L
worst single sample: 15 µg/L
4/5 SYR4 2015–2019
Bromoform
4.96 µg/L
No EPA limit set
worst single sample: 5 µg/L
3/7 SYR4 2014–2019
Dichloroacetic Acid
6.57 µg/L
No EPA limit set
worst single sample: 6.8 µg/L
3/5 SYR4 2015–2019
Mercury
0.4670 µg/L 23%
of the EPA limit 2 µg/L
worst single sample: 0.4900 µg/L
3/16 SYR4 2014–2019
Trichloroacetic Acid
1.75 µg/L
No EPA limit set
worst single sample: 1.8 µg/L
3/5 SYR4 2015–2019
Arsenic
3.37 µg/L 34%
of the EPA limit 10 µg/L
worst single sample: 3.4 µg/L
2/16 SYR4 2014–2019
Nitrate-Nitrite
4965 µg/L 50%
of the EPA limit 10000 µg/L
worst single sample: 5100 µg/L
2/2 SYR4 2019
Selenium
4.57 µg/L 9.1%
of the EPA limit 50 µg/L
worst single sample: 4.7 µg/L
2/16 SYR4 2014–2019
Copper
123 µg/L 9.5%
of the EPA limit 1300 µg/L
 1/13 SYR4 2014–2019
39 contaminants tested, none detected
1,1,1-Trichloroethane1,1,2-Trichloroethane1,1-Dichloroethylene1,2,4-Trichlorobenzene1,2-DIBROMO-3-CHLOROPROPANE1,2-Dichloroethane1,2-DichloropropaneAntimony, TotalAsbestosAtrazineBariumBenzeneBenzo(A)PyreneBeryllium, TotalChlorobenzeneCadmiumCarbon TetrachlorideChromiumDichloromethaneDi(2-ethylhexyl) AdipateDi(2-ethylhexyl) PhthalateEthylene DibromideEthylbenzeneLassoMonobromoacetic AcidMonochloroacetic AcidNitriteSimazineStyreneTetrachloroethyleneThallium, TotalTolueneTrichloroethyleneVinyl ChlorideXylenes, Totalcis-1,2-DichloroethyleneO-DichlorobenzeneP-Dichlorobenzenetrans-1,2-Dichloroethylene

Utility contact

Contact
BRUNSON, NANCY
Phone
559-561-2707
Email
[email protected]

Frequently asked questions about Improvement District No. 1

Is Improvement District No. 1 tap water safe to drink?

EPA monitoring detected 19 contaminants in Improvement District No. 1's water. A detection isn't the same as a violation — most levels are within federal limits. See each level and source above, and the utility's annual Consumer Confidence Report for its official compliance status.

What contaminants were detected in Improvement District No. 1's water?

EPA monitoring detected Nitrate, Combined Uranium, Lead, Fluoride, Bromodichloromethane, and others. The full list with the level and data source for each is above.

How many people does Improvement District No. 1 serve?

Improvement District No. 1 reports serving 200 people in California, per its EPA record.

Has Improvement District No. 1 had any water quality violations?

The EPA has 110 violations on file for Improvement District No. 1, of which 31 are health-based (a contaminant limit or required treatment was breached) and 0 remain open. The rest are monitoring or reporting failures.

Where does this data come from?

Every figure is official EPA drinking-water monitoring — the Lead & Copper Rule, the UCMR-5 nationwide testing program, and the EPA Six-Year Review — not our own testing. Each number is labelled with its source and period.