CA Water Service - Chico (CA) Water Quality

CA Water Service - Chico is a large public water system in EPA region 9 that provides tap water for the 95926, 95951, 95973 zip codes. It has 123 facilities where the water supply was tested for 82 chemical contaminants that impact tap water quality and human health.

The maximum reported level of HAA5 (five regulated haloacetic acids) was 0.38 µg/L. The maximum reported level of Manganese was 5.9 µg/L. There were 2 contamintants found in the CA Water Service - Chico water supply at levels that were above the minimum reporting level.

Contaminants

1,1-dichloroethane (76)

1,2,3-trichloropropane (76)

1,3-butadiene (76)

1,4-dioxane (76)

1-butanol (76)

11-chloroeicosafluoro-3-oxaundecane-1-sulfonic acid (74)

17-alpha-ethynylestradiol (76)

17-beta-estradiol (76)

1H,1H,2H,2H-perfluorodecane sulfonic acid (74)

1H,1H,2H,2H-perfluorohexane sulfonic acid (74)

1H,1H,2H,2H-perfluorooctane sulfonic acid (74)

2,4-dinitrotoluene (126)

2,6-dinitrotoluene (126)

2-methoxyethanol (76)

2-propen-1-ol (Allyl Alcohol) (76)

4,4'-dichloro dichlorophenyl ethylene (DDE) (126)

4,8-dioxa-3H-perfluorononanoic acid (74)

4-androstene-3,17-dione (76)

9-chlorohexadecafluoro-3-oxanonane-1-sulfonic acid (74)

alpha-hexachlorocyclohexane (76)

bromochloromethane (Halon 1011) (76)

bromomethane (76)

Butylated Hydroxyanisole (76)

chlorate (94)

chlorodifluoromethane (HCFC-22) (76)

chloromethane (76)

chlorpyrifos (76)

chromium (94)

chromium-6 (94)

cobalt (94)

dimethipin (76)

dimethyl tetrachloroterephthalate (DCPA) mono/di-acid degradate (137)

equilin (76)

estriol (76)

estrone (76)

ethoprop (76)

Germanium (76)

HAA5 (five regulated haloacetic acids) (12)

HAA6Br (six brominated haloacetic acids) (12)

HAA9 (nine haloacetic acids) (12)

hexafluoropropylene oxide dimer acid (GenX) (74)

lithium (74)

Manganese (76)

methyl-tertiary-butyl-ether (MTBE) (134)

molinate (126)

molybdenum (94)

N-ethyl perfluorooctanesulfonamidoacetic acid (74)

N-methyl perfluorooctanesulfonamidoacetic acid (74)

nitrobenzene (134)

nonafluoro-3,6-dioxaheptanoic acid (74)

o-toluidine (76)

oxyfluorfen (76)

perchlorate (131)

perfluoro(2-ethoxyethane)sulfonic acid (74)

perfluoro-3-methoxypropanoic acid (74)

perfluoro-4-methoxybutanoic acid (74)

perfluorobutanesulfonic acid (150)

perfluorobutanoic acid (74)

perfluorodecanoic acid (74)

perfluorododecanoic acid (74)

perfluoroheptanesulfonic acid (74)

perfluoroheptanoic acid (150)

perfluorohexanesulfonic acid (150)

perfluorohexanoic acid (74)

perfluorononanoic acid (150)

perfluorooctanesulfonic acid (150)

perfluorooctanoic acid (150)

perfluoropentanesulfonic acid (74)

perfluoropentanoic acid (74)

perfluorotetradecanoic acid (74)

perfluorotridecanoic acid (74)

perfluoroundecanoic acid (74)

profenofos (76)

quinoline (76)

s-ethyl-dipropylthiocarbamate (EPTC) (126)

strontium (94)

tebuconazole (76)

terbacil (126)

testosterone (76)

Total Permethrin (76)

tribufos (76)

vanadium (94)

Sampling Facilities

S Wells Treated
Ground Water (GW)

EP #68 - CH-W-S-CLEntry Point to the Distribution System (EP)

Well 46-1
Ground Water (GW)

EP #46 - CH-W-046-01-CLEntry Point to the Distribution System (EP)

Well 16-01-CL
Ground Water (GW)

CH-W-016-01-CLEntry Point to the Distribution System (EP)

Well 8-1
Ground Water (GW)

EP #138 - CH-W-008-01-CLEntry Point to the Distribution System (EP)

Well 76-1
Ground Water (GW)

EP #137 - CH-W-076-01-CLEntry Point to the Distribution System (EP)

Well 75-1
Ground Water (GW)

EP #135 - CH-W-075-01-CLEntry Point to the Distribution System (EP)

Well 70-1 (GWRMP)
Ground Water (GW)

EP #133 - CH-W-070-01-CLEntry Point to the Distribution System (EP)

Well 72-1
Ground Water (GW)

EP #131 - CH-W-072-01-CLEntry Point to the Distribution System (EP)

Well 5-2
Ground Water (GW)

EP #128 - CH-W-005-02-CLEntry Point to the Distribution System (EP)

Well 34-1 (GWRMP)
Ground Water (GW)

CH-W-034-01-CLEntry Point to the Distribution System (EP)

Well 17-1
Ground Water (GW)

EP #121 - CH-W-017-01-CLEntry Point to the Distribution System (EP)

Well 18-1
Ground Water (GW)

EP #120 - CH-W-018-01-CLEntry Point to the Distribution System (EP)

Well 20-1
Ground Water (GW)

EP #118 - CH-W-020-01-CLEntry Point to the Distribution System (EP)

Well 21-1
Ground Water (GW)

EP #117 - CH-W-021-01-CLEntry Point to the Distribution System (EP)

Well 23-1
Ground Water (GW)

EP #115 - CH-W-023-01-CLEntry Point to the Distribution System (EP)

Well 26-1
Ground Water (GW)

EP #112 - CH-W-026-01-CLEntry Point to the Distribution System (EP)

Well 32-1 (GWRMP)
Ground Water (GW)

EP #106 - CH-W-032-01-CLEntry Point to the Distribution System (EP)

Well 35-1
Ground Water (GW)

EP #103 - CH-W-035-01-CLEntry Point to the Distribution System (EP)

Well 37-1 (GWRMP)
Ground Water (GW)

EP #102 - CH-W-037-01-CLEntry Point to the Distribution System (EP)

Well 38-1
Ground Water (GW)

EP #101 - CH-W-038-01-CLEntry Point to the Distribution System (EP)

Well 42-1
Ground Water (GW)

EP #98 - CH-W-042-01-CLEntry Point to the Distribution System (EP)

Well 44-1
Ground Water (GW)

EP #97 - CH-W-044-01-CLEntry Point to the Distribution System (EP)

Well 52-01
Ground Water (GW)

CH-W-052-01-CLEntry Point to the Distribution System (EP)

Well 53-1
Ground Water (GW)

EP #90 - CH-W-053-01-CLEntry Point to the Distribution System (EP)

Well 54-1 (GWRMP)
Ground Water (GW)

EP #89 - CH-W-054-01-CLEntry Point to the Distribution System (EP)

Well 59-1
Ground Water (GW)

EP #86 - CH-W-059-01-CLEntry Point to the Distribution System (EP)

Well 27-1 (GWRMP)
Ground Water (GW)

CH-W-027-01-CLEntry Point to the Distribution System (EP)

Well 64-1
Ground Water (GW)

EP #82 - CH-W-064-01-CLEntry Point to the Distribution System (EP)

Well 65-1
Ground Water (GW)

EP #81 - CH-W-065-01-CLEntry Point to the Distribution System (EP)

Well 67-1 (GWRMP)
Ground Water (GW)

EP #80 - CH-W-067-01-CLEntry Point to the Distribution System (EP)

Well 69-1
Ground Water (GW)

EP #78 - CH-W-069-01-CLEntry Point to the Distribution System (EP)

Well 40-1
Ground Water (GW)

EP #139 - CH-W-040-01-CLEntry Point to the Distribution System (EP)

Well 79-01
Ground Water (GW)

EP #138 - CH-W-079-01-CLEntry Point to the Distribution System (EP)

Well 80-01
Ground Water (GW)

EP #139 - CH-W-080-01-CLEntry Point to the Distribution System (EP)

Well 19-01-CL (GWRMP)
Ground Water (GW)

CH-W-019-01-CLEntry Point to the Distribution System (EP)

Well 71-01-CL
Ground Water (GW)

CH-W-071-01-CLEntry Point to the Distribution System (EP)

Well 9-03
Ground Water (GW)

CH-W-009-03-CLEntry Point to the Distribution System (EP)

Well 48-1
Ground Water (GW)

EP #95 - CH-W-048-01-CLEntry Point to the Distribution System (EP)

Well 11-01-CL
Ground Water (GW)

CH-W-011-01-CLEntry Point to the Distribution System (EP)

Distribution System
Ground Water (GW)

CH-D-027Distribution System (DS)
CH-D-027,DSMRT For Chico Wells 65,67,70,76Maximum Residence Time (MR)

Distribution System
Ground Water (GW)

CH-D-003Distribution System (DS)

Distribution System
Ground Water (GW)

CH-D-026Distribution System (DS)

Distribution System
Ground Water (GW)

CH-D-028Distribution System (DS)

Distribution System
Ground Water (GW)

CH-D-001Distribution System (DS)
CH-D-001,DSMRT For Chico Wells 44, 64Maximum Residence Time (MR)

Distribution System
Ground Water (GW)

CH-D-004Distribution System (DS)
CH-D-004,DSMRT For Chico Wells 3,8,17,21,22,52,59Maximum Residence Time (MR)

Well 7-4
Ground Water (GW)

EP #127: CH-W-007-04-CLEntry Point to the Distribution System (EP)

Well 14-1
Ground Water (GW)

EP #123: CH-W-014-01-CLEntry Point to the Distribution System (EP)

Well 22-1
Ground Water (GW)

EP #116: CH-W-022-01-CLEntry Point to the Distribution System (EP)

Well 41-1
Ground Water (GW)

EP #99: CH-W-041-01-CLEntry Point to the Distribution System (EP)

Well 51-1
Ground Water (GW)

EP #92: CH-W-051-01-CLEntry Point to the Distribution System (EP)

Distribution System
Ground Water (GW)

CH-D-17 DSMRT for CH 5,7,18,20,23,35,41,51,53,54Maximum Residence Time (MR)

Distribution System
Ground Water (GW)

CH-D-018,DSMRT For Chico Wells 32,37,72Maximum Residence Time (MR)

Distribution System
Ground Water (GW)

CH-D-024,DSMRT For Chico Well 79Maximum Residence Time (MR)

Distribution System
Ground Water (GW)

CH-D-002,DSMRT For Chico Wells12,16,26,38Maximum Residence Time (MR)

Distribution System
Ground Water (GW)

CH-D-010,DSMRT For Chico Wells14,42,46,S1,S2Maximum Residence Time (MR)

Distribution System
Ground Water (GW)

CH-D-016,DSMRT For Chico Wells 40,48,63,69,75,80Maximum Residence Time (MR)

EP- #072 S WELLS - INTERMEDIATE
Ground Water (GW)

CH-W-S-IMEntry Point to the Distribution System (EP)

EP- #129 WELL 03-03 - CHLORINATED XCLD
Ground Water (GW)

CH-W-003-03-CLEntry Point to the Distribution System (EP)

WELL 01-04
Ground Water (GW)

WELL 01-04 22N/01E-26L02SR (SR)

WELL 03-03
Ground Water (GW)

WELL 03-03 22N/01E-27R01SR (SR)

WELL 04-02
Ground Water (GW)

WELL 04-02 22N/01E-26J02SR (SR)

WELL 05-02
Ground Water (GW)

WELL 05-02 22N/01E-35A02SR (SR)

WELL 07-04
Ground Water (GW)

WELL 07-04 22N/01E-25M01SR (SR)

WELL 08-01
Ground Water (GW)

WELL 08-01 22N/01E-22Q01SR (SR)

WELL 09-02
Ground Water (GW)

WELL 09-02 22N/01E-26K01SR (SR)

WELL 11-01
Ground Water (GW)

WELL 11-01 22N/01E-35H02SR (SR)

WELL 12-01
Ground Water (GW)

WELL 12-01 22N/01E-23P01SR (SR)

WELL 13-01
Ground Water (GW)

WELL 13-01 22N/01E-35F01SR (SR)

WELL 14-01
Ground Water (GW)

WELL 14-01 22N/01E-22H01SR (SR)

WELL 15-01
Ground Water (GW)

WELL 15-01 22N/01E-35E01SR (SR)

WELL 16-01
Ground Water (GW)

WELL 16-01 22N/01E-23L01SR (SR)

WELL 16-01 - AERATION
Ground Water (GW)

WELL 16-01 - AERATI B04/002-1601AEntry Point to the Distribution System (EP)

WELL 17-01
Ground Water (GW)

WELL 17-01 22N/01E-22F01SR (SR)

WELL 18-01
Ground Water (GW)

WELL 18-01 22N/01E-25C01SR (SR)

WELL 19-01
Ground Water (GW)

WELL 19-01 22N/01E-22A01SR (SR)

WELL 20-01
Ground Water (GW)

WELL 20-01 22N/01E-24N01SR (SR)

WELL 21-01
Ground Water (GW)

WELL 21-01 22N/01E-22P01SR (SR)

WELL 22-01
Ground Water (GW)

WELL 22-01 22N/01E-23C01SR (SR)

WELL 23-01
Ground Water (GW)

WELL 23-01 22N/01E-26Q01SR (SR)

WELL 24-01
Ground Water (GW)

WELL 24-01 22N/01E-23A01SR (SR)

WELL 25-01
Ground Water (GW)

WELL 25-01 22N/01E-14E05SR (SR)

WELL 26-01
Ground Water (GW)

WELL 26-01 22N/01E-19E01SR (SR)

WELL 27-01
Ground Water (GW)

WELL 27-01 22N/01E-16H01Entry Point to the Distribution System (EP)

WELL 28-01
Ground Water (GW)

WELL 28-01 22N/01E-24B01SR (SR)

WELL 29-01
Ground Water (GW)

WELL 29-01 22N/01E-23C02SR (SR)

WELL 30-01
Ground Water (GW)

WELL 30-01 22N/01E-15B01SR (SR)

WELL 31-01
Ground Water (GW)

WELL 31-01 22N/01E-14G01SR (SR)

WELL 32-01
Ground Water (GW)

WELL 32-01 22N/01E-13E01SR (SR)

WELL 33-01
Ground Water (GW)

WELL 33-01 22N/02E-18N01SR (SR)

WELL 34-01
Ground Water (GW)

WELL 34-01 22N/01E-23K03SR (SR)

WELL 35-01
Ground Water (GW)

WELL 35-01 22N/01E-36C01SR (SR)

WELL 37-01
Ground Water (GW)

WELL 37-01 22N/01E-14C01SR (SR)

WELL 38-01
Ground Water (GW)

WELL 38-01 22N/01E-23R01SR (SR)

WELL 39-01
Ground Water (GW)

WELL 39-01 22N/01E-25A01SR (SR)

WELL 41-01
Ground Water (GW)

WELL 41-01 22N/01E-31Q01SR (SR)

WELL 42-01
Ground Water (GW)

WELL 42-01 22N/01E-33A01SR (SR)

WELL 44-01
Ground Water (GW)

WELL 44-01 22N/01E-04A02SR (SR)

WELL 46-01
Ground Water (GW)

WELL 46-01 22N/01E-34G01SR (SR)

WELL 47-01
Ground Water (GW)

WELL 47-01 22N/01E-21M01SR (SR)

WELL 48-01
Ground Water (GW)

WELL 48-01 22N/01E-10R01Entry Point to the Distribution System (EP)

WELL 49-01
Ground Water (GW)

WELL 49-01 22N/01E-13H04SR (SR)

WELL 50-01
Ground Water (GW)

WELL 50-01 22N/02E-19G01SR (SR)

WELL 51-01
Ground Water (GW)

WELL 51-01 22N/01E-36M01SR (SR)

WELL 52-01
Ground Water (GW)

WELL 52-01 22N/01E-15L01SR (SR)

WELL 53-01
Ground Water (GW)

WELL 53-01 22N/02E-31B01SR (SR)

WELL 54-01
Ground Water (GW)

WELL 54-01 22N/02E-19N01SR (SR)

WELL 56-01
Ground Water (GW)

WELL 56-01 22N/01E-09R01SR (SR)

WELL 57-01
Ground Water (GW)

WELL 57-01 22N/01E-25A02SR (SR)

WELL 58-01
Ground Water (GW)

WELL 58-01 22N/01E-10K01Entry Point to the Distribution System (EP)

WELL 59-01
Ground Water (GW)

WELL 59-01 22N/01E-28K01SR (SR)

WELL 61-01
Ground Water (GW)

WELL 61-01 22N/01E-25R01SR (SR)

WELL 62-01
Ground Water (GW)

WELL 62-01 22N/01E-11E01SR (SR)

WELL 63-01
Ground Water (GW)

WELL 63-01 22N/01E-16L02SR (SR)

WELL 64-01
Ground Water (GW)

WELL 64-01 23N/01E-34G01SR (SR)

WELL 65-01
Ground Water (GW)

WELL 65-01 22N/02E-29M01SR (SR)

C1 WELL - RAW
Ground Water (GW)

C1 WELL - RAW 22N/01E-26E04SR (SR)

WELL 67-01
Ground Water (GW)

WELL 67-01 0410002-069SR (SR)

C2 WELL - RAW
Ground Water (GW)

C2 WELL - RAW 0410002-070SR (SR)

WELL 68-01
Ground Water (GW)

WELL 68-01 22N/01E-28M03SR (SR)

WELL 69-01
Ground Water (GW)

WELL 69-01 22N/01E-16C02SR (SR)

WELL 71-01
Ground Water (GW)

WELL 71-01Entry Point to the Distribution System (EP)

WELL 70-01
Ground Water (GW)

70-01 22N/01E-13H05Entry Point to the Distribution System (EP)

()

LD (LD)
MD (MD)
Maximum Residence Time (MR)

FAQ

Is CA Water Service - Chico tap water safe to drink?

When was CA Water Service - Chico last tested for water contamination?

The latest water samples were taken on July 23rd, 2024.