ZIP Code 20024 Water Quality & Testing Report
Washington, DC · District of Columbia County · Updated for 2026
Is Tap Water Safe to Drink in ZIP 20024 (Washington, DC)?
Yes, tap water in ZIP code 20024 (Washington, DC) is safe to drink under EPA Safe Drinking Water Act standards. Supplied by D.c. Water and Sewer Authority, the area earns an EPA Safety Grade of B (72/100) with 6 health violations, 1.0 ppb lead, and moderately hard (117 mg/L / 6.8 GPG) water.
Water Safety Grade
Good — Minor issues on record
Health Violations
6
Total Violations
33
Lead Risk
Moderate
Contaminants
3
Active Water Quality Issues Detected
EPA records show 6 unresolved violations. Contact D.c. Water and Sewer Authority for current status.
About Tap Water in ZIP Code 20024
Tap water in ZIP code 20024 (Washington, DC) is distributed by D.c. Water and Sewer Authority (EPA ID: DC0000002), serving approximately 632,323 residents. Based on EPA Safe Drinking Water Act compliance records, this system receives a water safety grade of B with a composite quality score of 72/100.
Water System
D.c. Water and Sewer Authority
EPA ID: DC0000002
Water Source
Surface Water
Population Served
632,323 residents
County
District of Columbia County, District of Columbia
Lead Levels in ZIP 20024
EPA action level: 15 ppb | Public health goal: 0 ppb
Lead Level: 1.0 ppb — Very Low
Lead exposure risk in 20024 is rated Moderate. EPA models estimate a 41% exposure probability based on housing and infrastructure age.
From annual CCR filing
From annual CCR filing
EPA model estimate based on housing age and infrastructure
Water Hardness & Mineral Content
Grains per gallon (GPG) & Parts per million (PPM / mg/L)
Water in ZIP 20024 is Moderately Hard (117 mg/L / 6.8 GPG). It contains beneficial natural minerals like calcium and magnesium without causing heavy scale accumulation.
Grains per gallon
Parts per million CaCO3
Official EPA SDWIS Database Entry
Utility: D.c. Water and Sewer Authority · PWSID: DC0000002
Violation History
Past 5 years — EPA SDWIS data
D.c. Water and Sewer Authority has recorded 6 health-based violations out of 33 total violations over the past 5 years. 6 violations remain unresolved in EPA tracking records.
Regulatory compliance risk for this utility is rated Critical based on past reporting and enforcement records.
Contaminants Detected
Contaminants with health-based violations on record
EPA records identify 3 contaminants with health-based violations in the past 5 years: Consumer Confidence Report Rule, E. coli, Haloacetic Acids (HAA5).
From Consumer Confidence Report:
Chlorine (3 ppm); Total Trihalomethanes (TTHMs) (58 ppb); Haloacetic Acids (HAA5) (37 ppb); Total Organic Carbon (TOC) removal ratio (1.37 ratio); Perfluorooctanoic acid (PFOA) (3.8 ppt)
⚖ Enforcement Actions
Water Source & Environmental Factors
Surface Water
This system draws water from lakes, rivers, or reservoirs. Surface water is treated to remove sediment, microorganisms, and chemical contaminants before reaching taps.
Estimated annual flood-related costs per property
% of household income spent on energy — indicator of older infrastructure
Water Quality Testing in ZIP 20024
Tap Water & Well Testing Recommendations
Residents in ZIP code 20024 served by D.c. Water and Sewer Authority can test tap water or private well systems to verify water purity. Testing detects hidden contaminants before they impact family health.
Tap Water Testing Steps
- 1.Conduct a certified lead check if your home was constructed before 1986.
- 2.Use certified lab testing kits rather than uncalibrated test strips for regulated compliance.
- 3.Sample water from both your kitchen faucet and water heater to compare line purity.
Private Well Testing Steps
- •Test for Coliform bacteria and Nitrates annually.
- •Test for heavy metals, radon, and PFAS every 3 years.
- •Send samples to a state-certified drinking water laboratory recognized by District of Columbia Water and Sewer Authority.
🛡 What Should You Do? — ZIP 20024 Recommendations
Your water quality is good
- ✓ Run cold water for 30 seconds each morning before use — especially if pipes are old
- ✓ Request your annual Consumer Confidence Report from D.c. Water and Sewer Authority
- ✓ If your home was built before 1986, consider testing your own tap for lead
- ✓ Use a pitcher filter (NSF/ANSI 42 certified) for improved taste
Recommended Taste & Safety Filter:
NSF/ANSI 53 Certified Pitcher Filter
Best for removing aesthetic chlorine, odors, and low-level heavy metals.
Frequently Asked Questions — ZIP 20024 Water Quality
Is tap water safe to drink in ZIP code 20024?+
How do I get my water tested in ZIP 20024 (Washington, DC)?+
How hard is the tap water in 20024?+
Should I test private well water in 20024?+
What is the lead level in 20024 tap water?+
Is there an active boil water notice in 20024?+
Who provides tap water to 20024?+
What water filter should I use in 20024?+
Data Sources & Methodology
Water quality data for ZIP code 20024 is compiled from the EPA Safe Drinking Water Information System (SDWIS), EPA ECHO enforcement database, UCMR5 unregulated contaminant monitoring, and Consumer Confidence Reports filed by D.c. Water and Sewer Authority. Safety scores are composite metrics derived from violation history, lead levels, enforcement actions, and infrastructure risk indicators. Data reflects a 5-year monitoring window. Last dataset update: 2024. View EPA source data →