CONGRESSIONAL DISTRICT DC NON-VOTING

District of Columbia - At-Large

119th Congress · 286 ZIP codes · Updated N/A

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

286
ZIP Codes
173
Total Violations
3
Health Violations
2
Water Systems

Top Contaminants

E. coli (80) Consumer Confidence Report Rule (78) Lead and Copper Rule (4) Lead (3) Stage 1 DBP Rule (2)

ZIP Codes in This District

100 ZIP codes tracked in District of Columbia's At-Large. Showing top 50 by safety score.

# ZIP Code City Safety Score Grade Violations
1 20001 Washington N/A N/A 4
2 20002 Washington N/A N/A 4
3 20003 Washington N/A N/A 4
4 20004 Washington N/A N/A 4
5 20005 Washington N/A N/A 4
6 20006 Washington N/A N/A 4
7 20007 Washington N/A N/A 4
8 20008 Washington N/A N/A 4
9 20009 Washington N/A N/A 4
10 20010 Washington N/A N/A 4
11 20011 Washington N/A N/A 4
12 20012 Washington N/A N/A 4
13 20013 Washington N/A N/A N/A
14 20015 Washington N/A N/A 4
15 20016 Washington N/A N/A 4
16 20017 Washington N/A N/A 4
17 20018 Washington N/A N/A 4
18 20019 Washington N/A N/A 4
19 20020 Washington N/A N/A 4
20 20022 Washington N/A N/A N/A
21 20023 Washington N/A N/A N/A
22 20024 Washington N/A N/A 4
23 20026 Washington N/A N/A N/A
24 20027 Washington N/A N/A N/A
25 20029 Washington N/A N/A N/A
26 20030 Washington N/A N/A N/A
27 20032 Washington N/A N/A 33 (3 health)
28 20033 Washington N/A N/A N/A
29 20035 Washington N/A N/A N/A
30 20036 Washington N/A N/A 4
31 20037 Washington N/A N/A 4
32 20038 Washington N/A N/A N/A
33 20039 Washington N/A N/A N/A
34 20040 Washington N/A N/A N/A
35 20041 Washington N/A N/A N/A
36 20042 Washington N/A N/A N/A
37 20043 Washington N/A N/A N/A
38 20044 Washington N/A N/A N/A
39 20045 Washington N/A N/A N/A
40 20046 Washington N/A N/A N/A
41 20047 Washington N/A N/A N/A
42 20049 Washington N/A N/A N/A
43 20050 Washington N/A N/A N/A
44 20051 Washington N/A N/A N/A
45 20052 Washington N/A N/A 4
46 20053 Washington N/A N/A N/A
47 20055 Washington N/A N/A N/A
48 20056 Washington N/A N/A N/A
49 20057 Washington N/A N/A 4
50 20058 Washington N/A N/A N/A

Overview

District of Columbia's At-Large encompasses 286 ZIP codes tracked by ZipCheckup.

173 EPA violations have been recorded across this district's water systems. 3 are health-based violations. About 94% of the 36 ZIP records with a reported violation count have at least one violation.

Top Contaminants

The most frequently cited water quality issues in this district:

  • E. coli - 80 violations
  • Consumer Confidence Report Rule - 78 violations
  • Lead and Copper Rule - 4 violations
  • Lead - 3 violations
  • Stage 1 DBP Rule - 2 violations

Housing Context

Homes in this district were built on average around 1958 (~68 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 286 ZIP codes in District of Columbia's At-Large.

← Back to District of Columbia overview

How to cite this page

APA ZipCheckup. (2026). District of Columbia At-Large: 173 EPA Violations - . https://zipcheckup.com/congressional/dc-at-large/
BibTeX 
@misc{zipcheckup-congressional-dc-at-large,
  author = {{ZipCheckup}},
  title  = {{District of Columbia At-Large: 173 EPA Violations - }},
  year   = {2026},
  url    = {https://zipcheckup.com/congressional/dc-at-large/}
}

Page version: August 2026.

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