Tap WaterIndex

← California

Tap water quality report

Littlerock Creek Irrigation Dist.

EPA monitoring tested this supplier for 109 contaminants and detected 14. A detection doesn't automatically mean the water is unsafe — the level and EPA source for each is below.

109
contaminants tested
14
detected
3,040
people served
0
health-based violations
California rankingsLead in CaliforniaPFAS in California
Water source
Ground water
Ownership
Local government
Counties served
Los Angeles

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.

0
health-based violations
14
violations on file
0
still open
ViolationTypeStatusPeriod
MR Monitoring Resolved 2024-01-01 → 2024-12-31
MR Monitoring Resolved 2024-01-01 → 2024-12-31
MR Monitoring Resolved 2023-01-01 → 2023-03-31
MR Monitoring Resolved 2023-01-01 → 2023-03-31
MR Monitoring Resolved 2023-01-01 → 2023-03-31
MR Monitoring Resolved 2023-01-01 → 2023-03-31
MR Monitoring Resolved 2022-09-01 → 2022-09-30
MR Monitoring Resolved 2022-09-01 → 2022-09-30
MR Monitoring Resolved 2022-07-01 → 2022-09-30
MR Monitoring Resolved 2022-07-01 → 2022-09-30

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
4800 µg/L 48%
of the EPA limit 10000 µg/L
worst single sample: 6000 µg/L
52/76 SYR4 2013–2019
TTHM
11.65 µg/L 15%
of the EPA limit 80 µg/L
worst single sample: 82.5 µg/L
42/54 SYR4 2013–2019
Dibromochloromethane
4.515 µg/L
No EPA limit set
worst single sample: 26 µg/L
40/54 SYR4 2013–2019
Bromodichloromethane
3.26 µg/L
No EPA limit set
worst single sample: 11.9 µg/L
37/54 SYR4 2013–2019
Bromoform
3.08 µg/L
No EPA limit set
worst single sample: 39.1 µg/L
24/54 SYR4 2013–2019
Chloroform
2.1 µg/L
No EPA limit set
worst single sample: 5.5 µg/L
24/54 SYR4 2013–2019
Lead
0.0 mg/L 0%
of the EPA limit 0.0150 mg/L
 17/17 LCR 2025
Total Haloacetic Acids (HAA5)
6.15 µg/L 10%
of the EPA limit 60 µg/L
worst single sample: 10.2 µg/L
11/54 SYR4 2013–2019
Dichloroacetic Acid
1.32 µg/L
No EPA limit set
worst single sample: 1.5 µg/L
10/54 SYR4 2013–2019
Combined Uranium
6.3772 µg/L 21%
of the EPA limit 30 µg/L
worst single sample: 7.003 µg/L
8/8 SYR4 2016–2019
Fluoride
213 µg/L 5.3%
of the EPA limit 4000 µg/L
worst single sample: 220 µg/L
8/8 SYR4 2014–2017
Nitrate-Nitrite
672920 µg/L 6729%
of the EPA limit, at the 95th percentile of samples — 10000 µg/L
worst single sample: 840000 µg/L
5/7 SYR4 2014–2017
Dibromoacetic Acid
7.03 µg/L
No EPA limit set
worst single sample: 7.7 µg/L
3/54 SYR4 2013–2019
Monobromoacetic Acid
1 µg/L
No EPA limit set
 1/54 SYR4 2013–2019
95 contaminants tested, none detected
1,1,1-Trichloroethane1,1,2-Trichloroethane1,1-Dichloroethylene1,2,4-Trichlorobenzene1,2-DIBROMO-3-CHLOROPROPANE1,2-Dichloroethane1,2-Dichloropropane11Cl-PF3OUdS2,4,5-TP2,4-D4:2 Fts6:2 Fts8:2 Fts9Cl-PF3ONSAdonaAntimony, TotalArsenicAsbestosAtrazineBhc-GammaBariumBenzeneBenzo(A)PyreneBeryllium, TotalChlorobenzeneCopperCyanideCadmiumCarbon TetrachlorideChlordaneChromiumDichloromethaneDalaponDi(2-ethylhexyl) AdipateDi(2-ethylhexyl) PhthalateDinosebDiquatEthylene DibromideEndothallEndrinEthylbenzeneGlyphosateGross Beta Particle ActivityHexachlorobenzeneHfpo-DaHeptachlorHeptachlor EpoxideHexachlorocyclopentadieneLassoLeadMercuryMethoxychlorMonochloroacetic AcidNetfosaaNfdhaNmefosaaNitritePfbaPFBSPfdaPfdoaPfeesaPfhpaPfhpsPfhxaPFHXSPfmbaPfmpaPFNAPFOAPFOSPfpeaPfpesPftaPftrdaPfunaPentachlorophenolPicloramSeleniumSimazineStyreneTetrachloroethyleneThallium, TotalTolueneTotal Polychlorinated Biphenyls (PCB)ToxapheneTrichloroacetic AcidTrichloroethyleneVinyl ChlorideXylenes, Totalcis-1,2-DichloroethyleneLithiumO-DichlorobenzeneP-Dichlorobenzenetrans-1,2-Dichloroethylene

Utility contact

Contact
CHAISSON, JAMES
Phone
661-944-2015
Email
[email protected]

Frequently asked questions about Littlerock Creek Irrigation Dist.

Is Littlerock Creek Irrigation Dist. tap water safe to drink?

EPA monitoring detected 14 contaminants in Littlerock Creek Irrigation Dist.'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 Littlerock Creek Irrigation Dist.'s water?

EPA monitoring detected Nitrate, TTHM, Dibromochloromethane, Bromodichloromethane, Bromoform, and others. The full list with the level and data source for each is above.

How many people does Littlerock Creek Irrigation Dist. serve?

Littlerock Creek Irrigation Dist. reports serving 3,040 people in California, per its EPA record.

Has Littlerock Creek Irrigation Dist. had any water quality violations?

The EPA has 14 violations on file for Littlerock Creek Irrigation Dist., of which 0 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.