Los Angeles Co. WW Dist. #4 & #34 - Lancaster (CA) Water Quality

Los Angeles Co. WW Dist. #4 & #34 - Lancaster is a large public water system in EPA region 9 that provides tap water for the 93534 - 93536, 93584 zip codes. It has 73 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 13.73 µg/L. The maximum reported level of Manganese was 8.4 µg/L. There were 2 contamintants found in the Los Angeles Co. WW Dist. #4 & #34 - Lancaster water supply at levels that were above the minimum reporting level.

Contaminants

1,1-dichloroethane (34)

1,2,3-trichloropropane (34)

1,2-diphenylhydrazine (60)

1,3-butadiene (34)

1,4-dioxane (34)

1-butanol (40)

11-chloroeicosafluoro-3-oxaundecane-1-sulfonic acid (28)

17-alpha-ethynylestradiol (34)

17-beta-estradiol (34)

1H,1H,2H,2H-perfluorodecane sulfonic acid (28)

1H,1H,2H,2H-perfluorohexane sulfonic acid (28)

1H,1H,2H,2H-perfluorooctane sulfonic acid (28)

2,4,6-trichlorophenol (61)

2,4-dichlorophenol (61)

2,4-dinitrophenol (61)

2,4-dinitrotoluene (60)

2,6-dinitrotoluene (60)

2-methoxyethanol (40)

2-methyl-phenol (61)

2-propen-1-ol (Allyl Alcohol) (40)

4,4'-dichloro dichlorophenyl ethylene (DDE) (60)

4,8-dioxa-3H-perfluorononanoic acid (28)

4-androstene-3,17-dione (34)

9-chlorohexadecafluoro-3-oxanonane-1-sulfonic acid (28)

alpha-hexachlorocyclohexane (41)

anatoxin-a (2)

bromochloromethane (Halon 1011) (34)

bromomethane (34)

Butylated Hydroxyanisole (41)

chlorate (38)

chlorodifluoromethane (HCFC-22) (34)

chloromethane (34)

chlorpyrifos (41)

chromium (38)

chromium-6 (38)

cobalt (38)

cylindrospermopsin (2)

diazinon (60)

dimethipin (41)

dimethyl tetrachloroterephthalate (DCPA) mono/di-acid degradate (60)

diuron (60)

equilin (34)

estriol (34)

estrone (34)

ethoprop (41)

fonofos (60)

Germanium (40)

HAA5 (five regulated haloacetic acids) (9)

HAA6Br (six brominated haloacetic acids) (9)

HAA9 (nine haloacetic acids) (9)

hexafluoropropylene oxide dimer acid (GenX) (28)

linuron (60)

lithium (28)

Manganese (40)

methyl-tertiary-butyl-ether (MTBE) (60)

molinate (60)

molybdenum (38)

N-ethyl perfluorooctanesulfonamidoacetic acid (28)

N-methyl perfluorooctanesulfonamidoacetic acid (28)

nitrobenzene (60)

nitrobenzene (60)

nonafluoro-3,6-dioxaheptanoic acid (28)

o-toluidine (41)

oxyfluorfen (41)

perchlorate (60)

perfluoro(2-ethoxyethane)sulfonic acid (28)

perfluoro-3-methoxypropanoic acid (28)

perfluoro-4-methoxybutanoic acid (28)

perfluorobutanesulfonic acid (62)

perfluorobutanoic acid (28)

perfluorodecanoic acid (28)

perfluorododecanoic acid (28)

perfluoroheptanesulfonic acid (28)

perfluoroheptanoic acid (62)

perfluorohexanesulfonic acid (62)

perfluorohexanoic acid (28)

perfluorononanoic acid (62)

perfluorooctanesulfonic acid (62)

perfluorooctanoic acid (62)

perfluoropentanesulfonic acid (28)

perfluoropentanoic acid (28)

perfluorotetradecanoic acid (28)

perfluorotridecanoic acid (28)

perfluoroundecanoic acid (28)

profenofos (41)

prometon (60)

quinoline (41)

s-ethyl-dipropylthiocarbamate (EPTC) (60)

strontium (38)

tebuconazole (41)

terbacil (60)

terbufos (60)

testosterone (34)

total microcystins (2)

Total Permethrin (41)

tribufos (41)

vanadium (38)

Sampling Facilities

Avenue J tank
Multiple Sources (MX)

T04-02-01Entry Point to the Distribution System (EP)

W04-27
Ground Water (GW)

W04-27Entry Point to the Distribution System (EP)

Old Timer Well
Ground Water (GW)

W04-41Entry Point to the Distribution System (EP)

Landmark Tank
Multiple Sources (MX)

T04-13-01Entry Point to the Distribution System (EP)

Centenial
Ground Water (GW)

W04-51Entry Point to the Distribution System (EP)

K8andDiv tani
Multiple Sources (MX)

T04-03-01Entry Point to the Distribution System (EP)

FairgroundTank
Multiple Sources (MX)

T04-05-01Entry Point to the Distribution System (EP)

AVEKinterconnection
Multiple Sources (MX)

C04-66Entry Point to the Distribution System (EP)

J5and 15W
Multiple Sources (MX)

T04-04-01Entry Point to the Distribution System (EP)

eastside2 tank
Ground Water (GW)

T04-16-01Entry Point to the Distribution System (EP)

2721 MOONWART TERRACE
Multiple Sources (MX)

S04-48Entry Point to the Distribution System (EP)

AV M and 5th St east
Multiple Sources (MX)

C04-066Distribution System (DS)

AVe L 12 and 60th St west
Multiple Sources (MX)

C04-53Distribution System (DS)

2749 Dearborn
Multiple Sources (MX)

S04-31Entry Point to the Distribution System (EP)

1529 SAFARI COURT
Multiple Sources (MX)

S34-29Entry Point to the Distribution System (EP)

4SM-4
Multiple Sources (MX)

S04-01Distribution System (DS)

Well 34-7
Ground Water (GW)

EP #88 - Well 34-7 TreatedEntry Point to the Distribution System (EP)

Well 4-41
Ground Water (GW)

EP #87 - Well 4-41 TreatedEntry Point to the Distribution System (EP)

Wells 4-39, 4-65
Ground Water (GW)

EP #86 - Wells 4-39, 4-65 TreatedEntry Point to the Distribution System (EP)

Well 4-36
Ground Water (GW)

EP #85 - Well 4-36 TreatedEntry Point to the Distribution System (EP)

Wells 4-58 & 4-59
Ground Water (GW)

EP #84 - Wells 4-58 & 4-59 TreatedEntry Point to the Distribution System (EP)

Well 4-55
Ground Water (GW)

EP #83 - Well 4-55 TreatedEntry Point to the Distribution System (EP)

Well 4-51
Ground Water (GW)

EP #82 - Well 4-51 TreatedEntry Point to the Distribution System (EP)

Well 4-60
Ground Water (GW)

EP #81 - Well 4-60 TreatedEntry Point to the Distribution System (EP)

Wells 4-32, 4-87, 4-43, 4-44 & 4-72
Ground Water (GW)

EP #80 - Wells 4-32, 87, 43, 44 & 72 TreatedEntry Point to the Distribution System (EP)

Wells 4-30, 4-66 & 4-69
Ground Water (GW)

EP #79 - Wells 4-30, 4-66 & 4-69 TreatedEntry Point to the Distribution System (EP)

Wells 4-15, 4-84 & 4-67
Ground Water (GW)

EP #78 - Wells 4-15, 4-84 & 4-67 TreatedEntry Point to the Distribution System (EP)

Wells 4-63, 4-64, 4-70 & 4-71
Ground Water (GW)

EP #77 - Wells 4-63, 4-64, 4-70 & 4-71 TreatedEntry Point to the Distribution System (EP)

Wells 4-25, 4-38 & 4-61
Ground Water (GW)

EP #76 - Wells 4-25, 4-38 & 4-61 TreatedEntry Point to the Distribution System (EP)

Wells 4-62, 4-83
Ground Water (GW)

EP #75 - Wells 4-62 & 4-83 TreatedEntry Point to the Distribution System (EP)

Wells 4-22 & 4-27
Ground Water (GW)

Wells 4-22 & 4-27 TreatedEntry Point to the Distribution System (EP)

C4-66 (Ave M11 & 5th St East)
Surface Water (SW)

Entry Point to Dist. SystemEntry Point to the Distribution System (EP)

Distribution System (Anaverde tank site)
Multiple Sources (MX)

Max. Res. Time in Dist.System(Anaverde tank site)Maximum Residence Time (MR)

C4-50
Surface Water (SW)

C4-50Entry Point to the Distribution System (EP)

C4-53
Surface Water (SW)

C4-53Entry Point to the Distribution System (EP)

C4-56
Surface Water (SW)

C4-56Entry Point to the Distribution System (EP)

C4-59
Surface Water (SW)

C4-59Entry Point to the Distribution System (EP)

C4-70
Surface Water (SW)

C4-70Entry Point to the Distribution System (EP)

C4-70a
Surface Water (SW)

C4-70aEntry Point to the Distribution System (EP)

C4-71
Surface Water (SW)

C4-71Entry Point to the Distribution System (EP)

C34-7
Surface Water (SW)

C34-7Entry Point to the Distribution System (EP)

C34-9
Surface Water (SW)

C34-9Entry Point to the Distribution System (EP)

WELL 05
Ground Water (GW)

WELL 05 07N/12W-22B02SR (SR)

WELL 09
Ground Water (GW)

WELL 09 07N/12W-15R02SR (SR)

WELL 12
Ground Water (GW)

WELL 12 07N/12W-21C02SR (SR)

WELL 13
Ground Water (GW)

WELL 13 07N/12W-27H02SR (SR)

WELL 15
Ground Water (GW)

WELL 15 07N/12W-11E01SR (SR)

WELL 17
Ground Water (GW)

WELL 17 07N/12W-15R03SR (SR)

WELL 22
Ground Water (GW)

WELL 22 07N/13W-24M02SR (SR)

WELL 25
Ground Water (GW)

WELL 25 07N/12W-21C04SR (SR)

WELL 26
Ground Water (GW)

WELL 26 07N/12W-15R04SR (SR)

WELL 27
Ground Water (GW)

WELL 27 07N/13W-24M01SR (SR)

WELL 29
Ground Water (GW)

WELL 29 07N/12W-34N03SR (SR)

WELL 30
Ground Water (GW)

WELL 30 07N/12W-34N02SR (SR)

WELL 32
Ground Water (GW)

WELL 32 07N/12W-27P02SR (SR)

WELL 33
Ground Water (GW)

WELL 33 07N/12W-27H03SR (SR)

WELL 34
Ground Water (GW)

WELL 34 07N/12W-27P03SR (SR)

WELL 36
Ground Water (GW)

WELL 36 07N/12W-09E01SR (SR)

WELL 37
Ground Water (GW)

WELL 37 07N/12W-30B01SR (SR)

WELL 38
Ground Water (GW)

WELL 38 07N/12W-21C05SR (SR)

WELL 39
Ground Water (GW)

WELL 39 08N/11W-30Q03SR (SR)

WELL 41
Ground Water (GW)

WELL 41 07N/10W-19H03SR (SR)

WELL 04 - FOX
Ground Water (GW)

WELL 04 - FOX 08N/13W-36N01SR (SR)

WELL 43
Ground Water (GW)

WELL 43 1910070-062SR (SR)

WELL 44
Ground Water (GW)

WELL 44 1910070-063SR (SR)

WELL 50
Ground Water (GW)

WELL 50 1910070-066SR (SR)

WELL 51
Ground Water (GW)

WELL 51 1910070-067SR (SR)

WELL 54
Ground Water (GW)

WELL 54 1910070-068SR (SR)

WELL 55
Ground Water (GW)

WELL 55 1910070-069SR (SR)

WELL 58
Ground Water (GW)

WELL 58 1910070-070SR (SR)

WELL 59
Ground Water (GW)

WELL 59 1910070-071SR (SR)

WELL 60
Ground Water (GW)

WEL 60 1910070-073Entry Point to the Distribution System (EP)

WELL 52
Ground Water (GW)

WELL 52 1910070-074SR (SR)

FAQ

Is Los Angeles Co. WW Dist. #4 & #34 - Lancaster tap water safe to drink?

When was Los Angeles Co. WW Dist. #4 & #34 - Lancaster last tested for water contamination?

The latest water samples were taken on June 18th, 2024.