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Tap water quality report

Ccwd/Brentwood Wtp

EPA monitoring tested this supplier for 80 contaminants and detected 21. A detection doesn't automatically mean the water is unsafe — the level and EPA source for each is below.

80
contaminants tested
21
detected
0
people served
0
health-based violations
Water source
SWP
Ownership
Local government
Counties served
Contra Costa

Compliance record

No violations on file. The EPA has no formal drinking-water violations recorded for this supplier.

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
TTHM
66.7 µg/L 83%
of the EPA limit 80 µg/L
worst single sample: 120 µg/L
64/68 SYR4 2012–2019
Bromodichloromethane
13 µg/L
No EPA limit set
worst single sample: 19 µg/L
63/68 SYR4 2012–2019
Dibromochloromethane
25.9 µg/L
No EPA limit set
worst single sample: 35 µg/L
63/68 SYR4 2012–2019
Chloroform
14.2 µg/L
No EPA limit set
worst single sample: 18 µg/L
57/68 SYR4 2012–2019
Bromoform
32 µg/L
No EPA limit set
worst single sample: 67 µg/L
46/68 SYR4 2012–2019
Total Haloacetic Acids (HAA5)
8.48 µg/L 14%
of the EPA limit 60 µg/L
worst single sample: 12 µg/L
23/24 SYR4 2012–2019
Arsenic
4.68 µg/L 47%
of the EPA limit 10 µg/L
worst single sample: 6.2 µg/L
20/36 SYR4 2012–2019
Dibromoacetic Acid
6.76 µg/L
No EPA limit set
worst single sample: 8.8 µg/L
18/24 SYR4 2012–2019
Fluoride
225 µg/L 5.6%
of the EPA limit 4000 µg/L
worst single sample: 300 µg/L
16/63 SYR4 2012–2019
Nitrate
632.8 µg/L 6.3%
of the EPA limit 10000 µg/L
16/164 SYR4 2012–2019
Dichloroacetic Acid
4.13 µg/L
No EPA limit set
worst single sample: 4.2 µg/L
15/24 SYR4 2012–2019
Barium
158 µg/L 7.9%
of the EPA limit 2000 µg/L
worst single sample: 160 µg/L
5/36 SYR4 2012–2019
Dichloromethane
3.16 µg/L 63%
of the EPA limit 5 µg/L
worst single sample: 3.4 µg/L
4/28 SYR4 2012–2019
Nitrate-Nitrite
200 µg/L 2%
of the EPA limit 10000 µg/L
4/16 SYR4 2014–2019
Trichloroacetic Acid
1.6 µg/L
No EPA limit set
4/24 SYR4 2012–2019
Bromate
6.07 µg/L 61%
of the EPA limit 10 µg/L
worst single sample: 6.3 µg/L
2/65 SYR4 2012–2019
Monobromoacetic Acid
1.38 µg/L
No EPA limit set
worst single sample: 1.4 µg/L
2/24 SYR4 2012–2019
Cadmium
1.6 µg/L 32%
of the EPA limit 5 µg/L
1/36 SYR4 2012–2019
Di(2-ethylhexyl) Adipate
0.2100 µg/L 0.1%
of the EPA limit 400 µg/L
1/27 SYR4 2012–2019
Di(2-ethylhexyl) Phthalate
0.2800 µg/L 4.7%
of the EPA limit 6 µg/L
1/27 SYR4 2012–2019
Lead
0.5300 µg/L 3.5%
of the EPA limit 15 µg/L
1/34 SYR4 2012–2019
59 contaminants tested, none detected
1,1,1-Trichloroethane1,1,2-Trichloroethane1,1-Dichloroethylene1,2,4-Trichlorobenzene1,2-DIBROMO-3-CHLOROPROPANE1,2-Dichloroethane1,2-Dichloropropane2,3,7,8-TCDD2,4,5-TP2,4-DAntimony, TotalAsbestosAtrazineBhc-GammaBenzeneBenzo(A)PyreneBeryllium, TotalChlorobenzeneCopperCyanideCarbofuranCarbon TetrachlorideChlordaneChromiumDalaponDinosebDiquatEthylene DibromideEndothallEndrinEthylbenzeneGlyphosateHexachlorobenzeneHeptachlorHeptachlor EpoxideHexachlorocyclopentadieneLassoMercuryMethoxychlorMonochloroacetic AcidNitriteOxamylPentachlorophenolPicloramSeleniumSimazineStyreneTetrachloroethyleneThallium, TotalTolueneTotal Polychlorinated Biphenyls (PCB)ToxapheneTrichloroethyleneVinyl ChlorideXylenes, Totalcis-1,2-DichloroethyleneO-DichlorobenzeneP-Dichlorobenzenetrans-1,2-Dichloroethylene

Utility contact

Contact
SAHADEO, VEDANA
Phone
925-688-8082
Email
VSahadeo@ccwater.com

Frequently asked questions about Ccwd/Brentwood Wtp

Is Ccwd/Brentwood Wtp tap water safe to drink?

EPA monitoring detected 21 contaminants in Ccwd/Brentwood Wtp'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 Ccwd/Brentwood Wtp's water?

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

How many people does Ccwd/Brentwood Wtp serve?

Ccwd/Brentwood Wtp reports serving 0 people in California, per its EPA record.

Has Ccwd/Brentwood Wtp had any water quality violations?

The EPA has no formal drinking-water violations on file for Ccwd/Brentwood Wtp.

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.