Imperial Water Quality Report
9 cities ranked · Average grade: B- · California
Avg Score
73.8
Cities Ranked
9
Health Violations
9
PFAS Detected
6
73.8
County avg score
9
Cities ranked
67%
A or B grade
0%
D or F grade
9
Health violations
6
PFAS detected
Grade Distribution
How Imperial cities scored
A
2
22%
Excellent
B
4
44%
Good
C
3
33%
Fair
D
0
0%
Poor
F
0
0%
Failing
Comparison
County vs California average
▼ 2.7 pts below state average
City Map
Water quality across Imperial
Each dot is a city, colored by grade. Click any city to view its full report.
Highlights
Top & bottom cities in Imperial
Best cities
Worst cities
County context
1
Superfund site in Imperial
28,000
lbs/yr to surface water · top 10 TRI facilities
Industrial pollution
Top industrial polluters in Imperial
Industrial polluters nearby
Facilities reporting the most surface-water releases in Imperial, 2023.
Total reported releases to surface water: 28,000 lbs
| Facility | Top chemical | To surface water (lbs/yr) |
|---|---|---|
US NAVY NAVAL AIR FACILITY EL CENTRO EL CENTRO, CA92243 | Nitrate compounds (water dissociable; reportable only when in aqueous solution) | 28,000 |
SPRECKELS SUGAR CO INC. BRAWLEY, CA92227 | — | — |
MESQUITE MINE BRAWLEY, CA92227 | — | — |
US GYPSUM CO EL CENTRO, CA92243 | — | — |
U.S. MARINE CORPS CHOCOLATE MOUNTAINS AERIAL GUNNERY RANGE NILAND, CA92257 | — | — |
Source: EPA Toxic Release Inventory (TRI) 2023
Superfund sites
Superfund sites in Imperial
Superfund sites nearby
Federally tracked hazardous-waste sites within Imperial on the EPA National Priorities List.
- STOKER CHEMICAL
Source: EPA Superfund National Priorities List
Full Rankings
All 9 cities in Imperial
| # | City | Grade | Score | Score | Population | Violations | Issues |
|---|---|---|---|---|---|---|---|
| 1 | Heber | A | 90.2 | 7K | 22 | Health Unresolved | |
| 2 | Brawley | A- | 87 | 27K | 9 | Health Unresolved | |
| 3 | Westmorland | B | 79.8 | 2K | 24 | Health Unresolved | |
| 4 | Holtville | B- | 74.2 | 6K | 98 | Health Unresolved | |
| 5 | Calexico | B- | 72.2 | 40K | 58 | Health Unresolved | |
| 6 | Seeley | B- | 71.7 | 2K | 62 | Health Unresolved | |
| 7 | Imperial | C+ | 66.2 | 31K | 65 | Health Unresolved | |
| 8 | Palo Verde | C | 63.8 | 585 | 25 | Health Unresolved | |
| 9 | El Centro | C- | 58.8 | 48K | 67 | Health Unresolved |