CONGRESSIONAL DISTRICT CA

California - 18th District

119th Congress · 51 ZIP codes · Avg score 77/100 · Grade B · Updated N/A

Data: EPA SDWIS / Census 119th Congress Last verified: N/A

ZipCheckup's versioned Home Safety Profile covers 51 ZIP codes in California's 18th District: the measured model 4.0.0 average is Grade B (77/100). 119 EPA violations on record, 80 health-based.

B
District Grade
77
Avg Safety Score
51
ZIP Codes
119
Total Violations
80
Health Violations
47
Water Systems
Salinas
Best ZIP: 93905 (83/100)
Hollister
Lowest ZIP: 95023 (60/100)

Top Contaminants

Lead (48) Total Trihalomethanes (TTHM) (18) Stage 2 DBP Rule (15) Haloacetic Acids (HAA5) (8) Consumer Confidence Report Rule (8)

ZIP Codes in This District

51 ZIP codes tracked in California's 18th District. Showing top 50 by safety score.

# ZIP Code City Safety Score Grade Violations
1 93905 Salinas 83 B 0
2 93906 Salinas 83 B 0
3 93926 Gonzales 83 B 2
4 95012 Castroville 83 B 2
5 93901 Salinas 82 B 3
6 93960 Soledad 80 B 6
7 93930 King City 79 B 2 (1 health)
8 93927 Greenfield 78 B 3 (1 health)
9 95019 Freedom 67 C 0
10 95076 Watsonville 64 C 4
11 95023 Hollister 60 C 8 (2 health)
12 93426 Bradley N/A N/A 10 (10 health)
13 93450 San Ardo N/A N/A N/A
14 93451 San Miguel N/A N/A 10 (10 health)
15 93902 Salinas N/A N/A N/A
16 93912 Salinas N/A N/A N/A
17 93915 Salinas N/A N/A N/A
18 93925 Chualar N/A N/A 2
19 93928 Jolon N/A N/A N/A
20 93932 Lockwood N/A N/A N/A
21 93954 San Lucas N/A N/A N/A
22 95004 Aromas N/A N/A 5 (2 health)
23 95020 Gilroy N/A N/A 23 (22 health)
24 95021 Gilroy N/A N/A N/A
25 95024 Hollister N/A N/A N/A
26 95037 Morgan Hill N/A N/A 23 (22 health)
27 95038 Morgan Hill N/A N/A N/A
28 95043 Paicines N/A N/A N/A
29 95045 San Juan Bautista N/A N/A 5 (2 health)
30 95046 San Martin N/A N/A 0
31 95075 Tres Pinos N/A N/A N/A
32 95077 Watsonville N/A N/A N/A
33 95103 San Jose N/A N/A N/A
34 95106 San Jose N/A N/A N/A
35 95108 San Jose N/A N/A N/A
36 95109 San Jose N/A N/A N/A
37 95110 San Jose N/A N/A 1 (1 health)
38 95112 San Jose N/A N/A 3 (1 health)
39 95113 San Jose N/A N/A 1 (1 health)
40 95115 San Jose N/A N/A N/A
41 95116 San Jose N/A N/A 1 (1 health)
42 95122 San Jose N/A N/A 1 (1 health)
43 95127 San Jose N/A N/A 3 (2 health)
44 95140 Mount Hamilton N/A N/A 1 (1 health)
45 95141 San Jose N/A N/A N/A
46 95156 San Jose N/A N/A N/A
47 95159 San Jose N/A N/A N/A
48 95172 San Jose N/A N/A N/A
49 95173 San Jose N/A N/A N/A
50 95192 San Jose N/A N/A N/A

Overview

California's 18th District encompasses 51 ZIP codes tracked by ZipCheckup. The district's average Home Safety Score is B (77/100).

119 EPA violations have been recorded across this district's water systems. 80 are health-based violations. About 85% of the 26 ZIP records with a reported violation count have at least one violation.

Top Contaminants

The most frequently cited water quality issues in this district:

  • Lead - 48 violations
  • Total Trihalomethanes (TTHM) - 18 violations
  • Stage 2 DBP Rule - 15 violations
  • Haloacetic Acids (HAA5) - 8 violations
  • Consumer Confidence Report Rule - 8 violations

Housing Context

Homes in this district were built on average around 1981 (~45 years old). Older homes may have lead pipes or solder - consider a water filter if your home predates 1986.

Data Sources

Updated daily. Data covers 51 ZIP codes in California's 18th District.

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How to cite this page

APA ZipCheckup. (2026). California 18th District: 119 EPA Violations - B. https://zipcheckup.com/congressional/ca-18/
BibTeX 
@misc{zipcheckup-congressional-ca-18,
  author = {{ZipCheckup}},
  title  = {{California 18th District: 119 EPA Violations - B}},
  year   = {2026},
  url    = {https://zipcheckup.com/congressional/ca-18/}
}

Page version: August 2026.

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