Los Angeles Water Quality Report
68 cities ranked · Average grade: B · California
Avg Score
79.3
Cities Ranked
68
Health Violations
54
PFAS Detected
55
79.3
County avg score
68
Cities ranked
85%
A or B grade
9%
D or F grade
54
Health violations
55
PFAS detected
Grade Distribution
How Los Angeles cities scored
A
27
40%
Excellent
B
31
46%
Good
C
4
6%
Fair
D
1
1%
Poor
F
5
7%
Failing
Comparison
County vs California average
▲ 2.8 pts above state average
City Map
Water quality across Los Angeles
Each dot is a city, colored by grade. Click any city to view its full report.
Highlights
Top & bottom cities in Los Angeles
County context
18
Superfund sites in Los Angeles
1,706,793
lbs/yr to surface water · top 10 TRI facilities
Industrial pollution
Top industrial polluters in Los Angeles
Industrial polluters nearby
Facilities reporting the most surface-water releases in Los Angeles, 2023.
Total reported releases to surface water: 1,706,793 lbs
| Facility | Top chemical | To surface water (lbs/yr) |
|---|---|---|
CHEVRON PRODUCTS CO. DIV OF CHEVRON USA INC. EL SEGUNDO, CA90245 | Nitrate compounds (water dissociable; reportable only when in aqueous solution) | 1,705,351 |
TESORO LOS ANGELES REFINERY-CARSON OPERATIONS CARSON, CA90745 | Zinc compounds | 602 |
HILL BROTHERS CHEMICAL CO CITY OF INDUSTRY, CA91745 | Nitrate compounds (water dissociable; reportable only when in aqueous solution) | 397 |
SEMCO ENTERPRISES INC CITY OF INDUSTRY, CA91744 | Zinc compounds | 142 |
US BORAX INC. WILMINGTON, CA90744 | Zinc compounds | 135 |
+ 5 more facilities
Source: EPA Toxic Release Inventory (TRI) 2023
Superfund sites
Superfund sites in Los Angeles
Superfund sites nearby
Federally tracked hazardous-waste sites within Los Angeles on the EPA National Priorities List.
- COOPER DRUM CO
- DEL AMO
- EXIDE TECHNOLOGIES VERNON
- JERVIS B WEBB CO
- JET PROPULSION LABORATORY NASA
+ 13 more sites
Source: EPA Superfund National Priorities List
Full Rankings
All 68 cities in Los Angeles
| # | City | Grade | Score | Score | Population | Violations | Issues |
|---|---|---|---|---|---|---|---|
| 1 | San Fernando | A+ | 98.5 | 24K | 1 | Health | |
| 2 | Baldwin Park | A | 94.5 | 73K | 6 | Health Unresolved | |
| 3 | La Canada Flintridge | A | 94.3 | 10K | 7 | Health | |
| 4 | Sierra Madre | A | 93.8 | 11K | 6 | Health Unresolved | |
| 5 | Littlerock | A | 92.8 | 3K | 7 | Unresolved | |
| 6 | Saugus | A | 92.7 | 730 | 18 | Health Unresolved | |
| 7 | Vernon | A | 92.6 | 28K | 3 | Health | |
| 8 | Elizabeth Lake | A | 91.9 | 2K | 7 | Health Unresolved | |
| 9 | South Pasadena | A | 90.5 | 25K | 14 | Health Unresolved | |
| 10 | La Habra Heights | A | 90.5 | 5K | 0 | PFAS | |
| 11 | Lomita | A- | 89.8 | 20K | 2 | Health PFAS | |
| 12 | Quartz Hill | A- | 89.7 | 25K | 3 | Health Unresolved | |
| 13 | Glendale | A- | 88.8 | 189K | 1 | PFAS | |
| 14 | Maywood | A- | 88.7 | 12K | 5 | Health PFAS Unresolved | |
| 15 | Walnut | A- | 88.3 | 101K | 2 | Health Unresolved | |
| 16 | Paramount | A- | 88.3 | 55K | 3 | Unresolved | |
| 17 | Burbank | A- | 88.2 | 106K | 7 | Health Unresolved | |
| 18 | Norwalk | A- | 87.7 | 20K | 1 | Health PFAS | |
| 19 | Inglewood | A- | 87.5 | 81K | 6 | Health PFAS Unresolved | |
| 20 | Torrance | A- | 87.3 | 106K | 31 | Unresolved | |
| 21 | El Segundo | A- | 87.2 | 16K | 2 | Unresolved | |
| 22 | Glendora | A- | 86.2 | 50K | 2 | Unresolved | |
| 23 | Lakewood | A- | 86.1 | 66K | 3 | Health PFAS Unresolved | |
| 24 | Manhattan Beach | A- | 86.1 | 33K | 3 | Health Unresolved | |
| 25 | Alhambra | A- | 86 | 358K | 18 | Health Unresolved | |
| 26 | Avalon | A- | 85.8 | 4K | 2 | Health Unresolved | |
| 27 | Calabasas | A- | 85.1 | 73K | 30 | Health Unresolved | |
| 28 | Rowland Heights | B+ | 84.8 | 55K | 1 | Unresolved | |
| 29 | Green Valley | B+ | 84.1 | 1K | 4 | Health Unresolved | |
| 30 | La Puente | B+ | 83.5 | 14K | 3 | Health Unresolved | |
| 31 | Lynwood | B+ | 83.3 | 67K | 8 | PFAS Unresolved | |
| 32 | Huntington Park | B+ | 82.7 | 37K | 11 | Health PFAS Unresolved | |
| 33 | Monrovia | B+ | 82.5 | 38K | 2 | PFAS Unresolved | |
| 34 | Cudahy | B+ | 82.5 | 23K | 40 | Health PFAS Unresolved | |
| 35 | Bellflower | B+ | 81.9 | 47K | 5 | PFAS Unresolved | |
| 36 | Newhall | B+ | 81.8 | 294K | 2 | Health PFAS Unresolved | |
| 37 | Azusa | B+ | 81.5 | 110K | 27 | Health PFAS Unresolved | |
| 38 | Altadena | B+ | 81.2 | 30K | 9 | Health PFAS Unresolved | |
| 39 | La Verne | B+ | 80.9 | 32K | 123 | Health Unresolved | |
| 40 | Santa Fe Springs | B+ | 80.4 | 57K | 8 | Health PFAS Unresolved | |
| 41 | La Crescenta | B+ | 80.3 | 36K | 4 | Health PFAS Unresolved | |
| 42 | Monterey Park | B | 79.7 | 62K | 4 | Health Unresolved | |
| 43 | South Gate | B | 79.5 | 76K | 60 | Health PFAS Unresolved | |
| 44 | Bell Gardens | B | 79.1 | 11K | 1 | PFAS Unresolved | |
| 45 | Hawthorne | B | 79 | 366K | 10 | Health Unresolved | |
| 46 | Arcadia | B | 78.7 | 51K | 11 | Health PFAS Unresolved | |
| 47 | Santa Monica | B | 78.5 | 90K | 1 | PFAS Unresolved | |
| 48 | Beverly Hills | B | 77.9 | 41K | 98 | Health Unresolved | |
| 49 | Cerritos | B | 77.2 | 47K | 2 | PFAS Unresolved | |
| 50 | Pico Rivera | B | 76.7 | 63K | 32 | Health PFAS Unresolved | |
| 51 | Downey | B | 76.6 | 300K | 68 | Health PFAS Unresolved | |
| 52 | Compton | B | 76.2 | 76K | 22 | Health PFAS Unresolved | |
| 53 | La Canada | B | 76.2 | 9K | 25 | Health Unresolved | |
| 54 | Covina | B | 76.1 | 336K | 27 | Health PFAS Unresolved | |
| 55 | Signal Hill | B | 75.8 | 12K | 13 | Health Unresolved | |
| 56 | Montebello | B | 75.2 | 53K | 17 | Health PFAS Unresolved | |
| 57 | Llano | B- | 74.1 | 845 | 16 | Health Unresolved | |
| 58 | San Dimas | B- | 73 | 203K | 31 | Health PFAS Unresolved | |
| 59 | Whittier | C+ | 69.8 | 75K | 32 | Health PFAS Unresolved | |
| 60 | Pomona | C+ | 66.2 | 182K | 30 | Health PFAS Unresolved | |
| 61 | Palmdale | C+ | 65.1 | 131K | 86 | Health Unresolved | |
| 62 | Long Beach | C | 64.5 | 467K | 53 | Health Unresolved | |
| 63 | Lancaster | D | 45 | 8K | 447 | Health Unresolved | |
| 64 | Los Angeles | F | 42.8 | 3.9M | 253 | Health Unresolved | |
| 65 | Pasadena | F | 42.5 | 192K | 327 | Health Unresolved | |
| 66 | El Monte | F | 40.4 | 282K | 153 | Health PFAS Unresolved | |
| 67 | Castaic | F | 40.2 | 7K | 60 | Health PFAS Unresolved | |
| 68 | West Covina | F | 33 | 10K | 255 | Health PFAS Unresolved |