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Tap water quality report

Red Bluff, CA

EPA monitoring detected 17 contaminants across the 19 water suppliers serving Red Bluff. A detection doesn't automatically mean the water is unsafe — see the level at the main supplier for each below, with its EPA source and period.

19
water suppliers
16,020
people served
17
contaminants found

What was found in Red Bluff's water

The level at the city's main supplier, the highest level anywhere in the city, the EPA limit for each, and where every figure comes from.

ContaminantLevel vs EPA limitSuppliersSource
Nitrate-Nitrite
970000 µg/L 9700%
of the EPA limit, at the 95th percentile of samples — 10000 µg/L
Main supplier: CITY OF RED BLUFF · 14,710 people · 2016
10/19 SYR4
Nitrate
2025 µg/L 20%
of the EPA limit 10000 µg/L
Main supplier: CITY OF RED BLUFF · 14,710 people · 2019
Highest in the city: 11800 µg/L — ANTOINETTE MUTUAL WATER CO · 25 people · 2019
18/19 SYR4
Fluoride
100 µg/L 2.5%
of the EPA limit 4000 µg/L
Main supplier: CITY OF RED BLUFF · 14,710 people · 2016
Highest in the city: 295 µg/L — WILSON ACRES MUTUAL WATER · 75 people · 2019
8/19 SYR4
Barium
74.12 µg/L 3.7%
of the EPA limit 2000 µg/L
Main supplier: CITY OF RED BLUFF · 14,710 people · 2016
Highest in the city: 112 µg/L — ANTOINETTE MUTUAL WATER CO · 25 people · 2017
7/19 SYR4
Copper
9.7 µg/L 0.7%
of the EPA limit 1300 µg/L
Main supplier: CITY OF RED BLUFF · 14,710 people · 2016
Highest in the city: 88 µg/L — ANTOINETTE MUTUAL WATER CO · 25 people · 2017
2/19 SYR4
Chromium
6.35 µg/L 6.4%
of the EPA limit 100 µg/L
Main supplier: CITY OF RED BLUFF · 14,710 people · 2016
Highest in the city: 19 µg/L — GOLDEN MEADOWS CSD · 102 people · 2019
6/19 SYR4
Arsenic
4 µg/L 40%
of the EPA limit 10 µg/L
Main supplier: CITY OF RED BLUFF · 14,710 people · 2019
Highest in the city: 7.681 µg/L — SURREY VILLAGE WATER CO. INC. · 163 people · 2019
8/19 SYR4
Thallium, Total
2.912 µg/L 146%
of the EPA limit, at the 95th percentile of samples — 2 µg/L
Highest in the city: SURREY VILLAGE WATER CO. INC. · 163 people · 2018
1/19 SYR4
Lead
1.56 µg/L 10%
of the EPA limit 15 µg/L
Main supplier: CITY OF RED BLUFF · 14,710 people · 2016
1/19 SYR4
Selenium
1 µg/L 2%
of the EPA limit 50 µg/L
Main supplier: CITY OF RED BLUFF · 14,710 people · 2016
1/19 SYR4
Cadmium
0.4000 µg/L 8%
of the EPA limit 5 µg/L
Highest in the city: WILSON ACRES MUTUAL WATER · 75 people · 2016
1/19 SYR4
Mercury
0.0245 µg/L 1.2%
of the EPA limit 2 µg/L
Main supplier: CITY OF RED BLUFF · 14,710 people · 2016
Highest in the city: 0.0600 µg/L — RIO RANCH COMMUNITY SVCS DIST · 44 people · 2015
3/19 SYR4
PFOA
0.0074 µg/L
No EPA limit set
Main supplier: CITY OF RED BLUFF · 14,710 people · 2024
1/19 UCMR-5
Pfpea
0.0067 µg/L
No EPA limit set
Main supplier: CITY OF RED BLUFF · 14,710 people · 2024
1/19 UCMR-5
Lead
0.0 mg/L 0%
of the EPA limit 0.0150 mg/L
Main supplier: CITY OF RED BLUFF · 14,710 people · 2025
Highest in the city: 0.0062 mg/L — MOUNTAIN VALLEY APTS & RVP · 131 people · 2025
19/19 LCR
Pfhxa
0.0060 µg/L
No EPA limit set
Main supplier: CITY OF RED BLUFF · 14,710 people · 2024
1/19 UCMR-5
Pfhpa
0.0055 µg/L
No EPA limit set
Main supplier: CITY OF RED BLUFF · 14,710 people · 2024
1/19 UCMR-5
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 the system's samples — over 100% is worth reading, but is not by itself a violation. Formal violations are listed separately. These are the utilities' own EPA-reported results, not a city-wide average. A detection means the lab measured the substance — it isn't the same as exceeding a legal limit. Hover a source tag to see the EPA program and years behind each figure.

Water suppliers serving Red Bluff

Frequently asked questions about Red Bluff tap water

Is Red Bluff tap water safe to drink?

EPA testing detected 17 contaminants in the water serving Red Bluff. A detection isn't the same as a violation — most detected levels are within federal limits. Check the level and source for each contaminant above, and your utility's annual Consumer Confidence Report for the official compliance status.

How many water suppliers serve Red Bluff?

19 public water suppliers report drinking-water monitoring for Red Bluff, California to the EPA. Each is listed above with its population served.

What contaminants are in Red Bluff's water?

The contaminants EPA monitoring detected in Red Bluff include Nitrate-Nitrite, Nitrate, Fluoride, Barium, Copper. The full list, with the level at the main supplier and the data source, is in the table above.

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.