CONGRESSIONAL DISTRICT CA

California - 48th District

119th Congress · 47 ZIP codes · Avg score 80/100 · Grade B · Updated N/A

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

ZipCheckup's versioned Home Safety Profile covers 47 ZIP codes in California's 48th District: the measured model 4.0.0 average is Grade B (80/100). 176 EPA violations on record, 128 health-based.

B
District Grade
80
Avg Safety Score
47
ZIP Codes
176
Total Violations
128
Health Violations
34
Water Systems
Alpine
Best ZIP: 91901 (92/100)
Temecula
Lowest ZIP: 92592 (58/100)

Top Contaminants

Lead (67) Contaminant 1045 (42) Consumer Confidence Report Rule (30) Total Trihalomethanes (TTHM) (21) Stage 2 DBP Rule (7)

ZIP Codes in This District

47 ZIP codes tracked in California's 48th District.

# ZIP Code City Safety Score Grade Violations
1 91901 Alpine 92 A 0
2 91935 Jamul 92 A 0
3 92003 Bonsall 92 A 0
4 92019 El Cajon 92 A 0
5 92027 Escondido 92 A 0
6 92071 Santee 92 A 0
7 92091 Rancho Santa Fe 92 A 0
8 92004 Borrego Springs 91 A 1
9 92028 Fallbrook 91 A 3
10 92064 Poway 91 A 2
11 92026 Escondido 90 A 3
12 92061 Pauma Valley 87 A 42 (40 health)
13 92065 Ramona 82 B 23 (4 health)
14 92040 Lakeside 74 B 2
15 92059 Pala 70 B 42 (40 health)
16 92082 Valley Center 70 B 42 (40 health)
17 92562 Murrieta 58 C 0
18 92563 Murrieta 58 C 0
19 92590 Temecula 58 C 0
20 92591 Temecula 58 C 0
21 92592 Temecula 58 C 0
22 91903 Alpine N/A N/A N/A
23 91905 Boulevard N/A N/A N/A
24 91906 Campo N/A N/A N/A
25 91916 Descanso N/A N/A N/A
26 91917 Dulzura N/A N/A N/A
27 91931 Guatay N/A N/A N/A
28 91934 Jacumba N/A N/A N/A
29 91948 Mount Laguna N/A N/A N/A
30 91962 Pine Valley N/A N/A N/A
31 91963 Potrero N/A N/A N/A
32 91980 Tecate N/A N/A N/A
33 91987 Tecate N/A N/A N/A
34 91990 Potrero N/A N/A N/A
35 92036 Julian N/A N/A 6 (2 health)
36 92060 Palomar Mountain N/A N/A N/A
37 92066 Ranchita N/A N/A N/A
38 92070 Santa Ysabel N/A N/A 5 (2 health)
39 92072 Santee N/A N/A N/A
40 92074 Poway N/A N/A N/A
41 92086 Warner Springs N/A N/A 5
42 92088 Fallbrook N/A N/A N/A
43 92143 San Ysidro N/A N/A N/A
44 92536 Aguanga N/A N/A 0
45 92564 Murrieta N/A N/A N/A
46 92589 Temecula N/A N/A N/A
47 92593 Temecula N/A N/A N/A

Overview

California's 48th District encompasses 47 ZIP codes tracked by ZipCheckup. The district's average Home Safety Score is B (80/100).

176 EPA violations have been recorded across this district's water systems. 128 are health-based violations. About 48% of the 25 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 - 67 violations
  • Contaminant 1045 - 42 violations
  • Consumer Confidence Report Rule - 30 violations
  • Total Trihalomethanes (TTHM) - 21 violations
  • Stage 2 DBP Rule - 7 violations

Housing Context

Homes in this district were built on average around 1983 (~43 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 47 ZIP codes in California's 48th District.

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How to cite this page

APA ZipCheckup. (2026). California 48th District: 176 EPA Violations - B. https://zipcheckup.com/congressional/ca-48/
BibTeX 
@misc{zipcheckup-congressional-ca-48,
  author = {{ZipCheckup}},
  title  = {{California 48th District: 176 EPA Violations - B}},
  year   = {2026},
  url    = {https://zipcheckup.com/congressional/ca-48/}
}

Page version: August 2026.

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