City of Los Angeles Dept. of Water & Power (CA) Water Quality

City of Los Angeles Dept. of Water & Power is a large public water system in EPA region 9 that provides tap water for the 90001 - 90008, 90011 - 90021, 90024 - 90029, 90032 - 90039, 90042 - 90049, 90057 - 90059, 90062 - 90069, 90077, 90095, 90211, 90212, 90232, 90248, 90272, 90291 - 90293, 90305, 90405, 90502, 90717, 90732, 91040, 91214, 91303, 91304, 91307, 91316, 91325, 91326, 91330, 91331, 91340, 91343 - 91345, 91352, 91364, 91371, 91401 - 91403, 91406, 91423, 91504, 91505, 91602, 91605 - 91608 zip codes. It has 34 facilities where the water supply was tested for 97 chemical contaminants that impact tap water quality and human health.

The maximum reported level of HAA5 (five regulated haloacetic acids) was 16.7 µg/L. The maximum reported level of Manganese was 2.43 µg/L. There were 2 contamintants found in the City of Los Angeles Dept. of Water & Power water supply at levels that were above the minimum reporting level.

Contaminants

1,1-dichloroethane (38)

1,2,3-trichloropropane (38)

1,2-diphenylhydrazine (16)

1,3-butadiene (38)

1,4-dioxane (38)

1-butanol (20)

11-chloroeicosafluoro-3-oxaundecane-1-sulfonic acid (16)

17-alpha-ethynylestradiol (38)

17-beta-estradiol (38)

1H,1H,2H,2H-perfluorodecane sulfonic acid (16)

1H,1H,2H,2H-perfluorohexane sulfonic acid (16)

1H,1H,2H,2H-perfluorooctane sulfonic acid (16)

2,4,6-trichlorophenol (16)

2,4-dichlorophenol (16)

2,4-dinitrophenol (16)

2,4-dinitrotoluene (16)

2,6-dinitrotoluene (16)

2-methoxyethanol (20)

2-methyl-phenol (16)

2-propen-1-ol (Allyl Alcohol) (20)

4,4'-dichloro dichlorophenyl ethylene (DDE) (16)

4,8-dioxa-3H-perfluorononanoic acid (16)

4-androstene-3,17-dione (38)

9-chlorohexadecafluoro-3-oxanonane-1-sulfonic acid (16)

alpha-hexachlorocyclohexane (20)

anatoxin-a (40)

bromochloromethane (Halon 1011) (38)

bromomethane (38)

Butylated Hydroxyanisole (20)

chlorate (76)

chlorodifluoromethane (HCFC-22) (38)

chloromethane (38)

chlorpyrifos (20)

chromium (76)

chromium-6 (76)

cobalt (76)

cylindrospermopsin (40)

diazinon (16)

dimethipin (20)

dimethyl tetrachloroterephthalate (DCPA) mono/di-acid degradate (16)

diuron (11)

equilin (38)

estriol (38)

estrone (38)

ethoprop (20)

fonofos (16)

Germanium (20)

HAA5 (five regulated haloacetic acids) (68)

HAA6Br (six brominated haloacetic acids) (68)

HAA9 (nine haloacetic acids) (68)

hexafluoropropylene oxide dimer acid (GenX) (16)

linuron (11)

lithium (16)

Manganese (20)

methyl-tertiary-butyl-ether (MTBE) (16)

molinate (16)

molybdenum (76)

N-ethyl perfluorooctanesulfonamidoacetic acid (16)

N-methyl perfluorooctanesulfonamidoacetic acid (16)

nitrobenzene (16)

nitrobenzene (16)

nonafluoro-3,6-dioxaheptanoic acid (16)

o-toluidine (20)

oxyfluorfen (20)

perchlorate (16)

perfluoro(2-ethoxyethane)sulfonic acid (16)

perfluoro-3-methoxypropanoic acid (16)

perfluoro-4-methoxybutanoic acid (16)

perfluorobutanesulfonic acid (54)

perfluorobutanoic acid (16)

perfluorodecanoic acid (16)

perfluorododecanoic acid (16)

perfluoroheptanesulfonic acid (16)

perfluoroheptanoic acid (54)

perfluorohexanesulfonic acid (54)

perfluorohexanoic acid (16)

perfluorononanoic acid (54)

perfluorooctanesulfonic acid (54)

perfluorooctanoic acid (54)

perfluoropentanesulfonic acid (16)

perfluoropentanoic acid (16)

perfluorotetradecanoic acid (16)

perfluorotridecanoic acid (16)

perfluoroundecanoic acid (16)

profenofos (20)

prometon (16)

quinoline (20)

s-ethyl-dipropylthiocarbamate (EPTC) (16)

strontium (76)

tebuconazole (20)

terbacil (16)

terbufos (16)

testosterone (38)

total microcystins (40)

Total Permethrin (20)

tribufos (20)

vanadium (76)

Sampling Facilities

Los Angeles Aqueduct Filtration Plant (LAAFP)
Surface Water (SW)

BYPIN, EP #011 LAAFP Finished, 1910067-011Entry Point to the Distribution System (EP)
EP #011 LAAFP Finished, LACLRWEL 1910067-011Entry Point to the Distribution System (EP)

River Supply Conduit
Multiple Sources (MX)

RSCBCL, EP #133 RSC Blend, 1910067-133Entry Point to the Distribution System (EP)

LA-17
Surface Water (SW)

EGLRK42A, EP #196 MWD LA-17, 1910067-196Entry Point to the Distribution System (EP)

LA-21
Surface Water (SW)

PVACM, EP #199 MWD LA-21, 1910067-199Entry Point to the Distribution System (EP)

Combined Tujunga Wells
Multiple Sources (MX)

TJCNTRBY, EP #205 Tujunga Wells Blend, 1910067-205Entry Point to the Distribution System (EP)

Distribution System (MX)
Multiple Sources (MX)

055ST, EP #800, RSC Blend, 1910067-800Distribution System (DS)
AMESBURY, EP # 801, TJ Wells Blend, 1910067-801Distribution System (DS)
DS013, EP # 806, RSC Blend, 1910067-806Distribution System (DS)
DS124, EP #808, TJ Well Blend, 1910067-808,Distribution System (DS)
LNDC1515, EP #812, TJ Wells Blend, 1910067-812Distribution System (DS)

Distribution System (SW)
Surface Water (SW)

AVENUE53,EP # 802, MWD LA-17, 1910067-802Distribution System (DS)
CHASTAIN, EP #803, LAAFP Finished, 1910067-803Distribution System (DS)
CORDELIA, EP #804, LAAFP Finished, 1910067-804Distribution System (DS)
CUMBRE, EP # 805, MWD LA-21, 1910067-805Distribution System (DS)
DS066, EP# 807, LAAFP Finished, 1910067-807Distribution System (DS)
EILAT, EP # 809, LAAFP Finished, 1910067-809Distribution System (DS)
ESTEPA, EP #810, LAAFP Finished, 1910067-810Distribution System (DS)
HARTZELL, EP #811, LAAFP Finished, 1910067-811Distribution System (DS)
MTGATE, EP #813, LAAFP Finished, 1910067-813Distribution System (DS)
NBEVGLEN, EP #814, LAAFP Finished, 1910067-814Distribution System (DS)
QDRVCHIO, EP #815, LAAFP Finished, 1910067-815Distribution System (DS)
VENICE, EP #816, LAAFP Finished, 1910067-816Distribution System (DS)
AMESBURY (1910067-801), Tujunga Wells BlendMaximum Residence Time (MR)
AVALON, RSC BlendMaximum Residence Time (MR)
DENNI, MWD LA-16Maximum Residence Time (MR)
DS023, MWD LA-17Maximum Residence Time (MR)
MAIN, Pollock Wells BlendMaximum Residence Time (MR)

LA-16
Surface Water (SW)

EP #200 MWD LA-16 (1910067-200), MWDLA16Entry Point to the Distribution System (EP)

Combined Pollock Wells
Multiple Sources (MX)

EP #204 Pollock Wells Blend, PLRVRSDE 1910067-204Entry Point to the Distribution System (EP)

Combined 99th Street Wells
Ground Water (GW)

EP #208 Combined 99th St Wells Eff 1910067-208Entry Point to the Distribution System (EP)

Combined Manhattan Wells
Ground Water (GW)

EP #210 Combined Manhattan Wells Eff 1910067-210Entry Point to the Distribution System (EP)

Combined Mission Wells
Ground Water (GW)

EP #211 Combined Mission Wells Eff, 1910067-211Entry Point to the Distribution System (EP)

LA-29
Surface Water (SW)

EP MWD LA-29, DS066 (1910067-807)Entry Point to the Distribution System (EP)

Distribution System (GW)
Ground Water (GW)

DENVER, Combined Manhattan Wells EffMaximum Residence Time (MR)
JUNIPER, Combined 99th St Wells EffMaximum Residence Time (MR)
PAXTON, Combined Mission Wells EffMaximum Residence Time (MR)

EP- #204 COMBINED POLLOCK WELLS - TREATED
Surface Water (SW)

PollockEntry Point to the Distribution System (EP)

EP- #133 RIVER SUPPY CONDUIT BCL - TREATED
Surface Water (SW)

RSCBCLEntry Point to the Distribution System (EP)

EP- #011 AQUEDUCT FILTRATION PLANT EFFLUENT-TRTED
Surface Water (SW)

LA ClearwellEntry Point to the Distribution System (EP)

EP- #213 TUJUNGA WELLS - TREATED
Surface Water (SW)

TujungaEntry Point to the Distribution System (EP)

EP- #211 MISSION WELLS - TREATED
Ground Water (GW)

MissionEntry Point to the Distribution System (EP)

EP- #210 MANHATTAN WELLS - TREATED
Ground Water (GW)

ManhattanEntry Point to the Distribution System (EP)

EP- #208 99TH STREET WELLS - TREATED
Ground Water (GW)

99StreetEntry Point to the Distribution System (EP)

Eilat
Surface Water (SW)

EilatMaximum Residence Time (MR)

DS009
Surface Water (SW)

DS009Maximum Residence Time (MR)

Amesbury
Surface Water (SW)

AmesburyMaximum Residence Time (MR)

Coolidge
Surface Water (SW)

CoolidgeMaximum Residence Time (MR)

8602 S. Denver Avenue
Ground Water (GW)

8602 S. Denver AvenueMaximum Residence Time (MR)

Paxton
Ground Water (GW)

PaxtonMaximum Residence Time (MR)

Juniper
Ground Water (GW)

JuniperMaximum Residence Time (MR)

AQUEDUCT FILTRATION PLANT EFFLUENT-TRTED
Surface Water (SW)

AQUEDUCT FILTRATION G19/067-LAAFPEntry Point to the Distribution System (EP)

RIVER SUPPY CONDUIT BCL - TREATED
Surface Water (SW)

RIVER SUPPY CONDUIT G19/067-SYSTREntry Point to the Distribution System (EP)

POLLOCK COMBINED TREATED EFFLEUNT BLEND
Ground Water (GW)

POLLOCK COMBINED TR G19/067-PTPEFEntry Point to the Distribution System (EP)

DISTRIBUTION-TJ/CANTERBURY BLEND-TREATED
Ground Water (GW)

DISTRIBUTION-TJ/CAN G19/067-SYSTJEntry Point to the Distribution System (EP)

MANHATTAN WELLS - TREATED
Ground Water (GW)

MANHATTAN WELLS 1910067-210Entry Point to the Distribution System (EP)

MISSION WELLS - TREATED
Ground Water (GW)

MISSION WELLS - 1910067-210Entry Point to the Distribution System (EP)

FAQ

Is City of Los Angeles Dept. of Water & Power tap water safe to drink?

When was City of Los Angeles Dept. of Water & Power last tested for water contamination?

The latest water samples were taken on September 11th, 2024.