Knightdale, NC: 22 Health Violations - Home Safety 50/100
1 ZIP code · 5 water systems · Updated
ZipCheckup grade for Knightdale: D.
Federal records show several conditions worth reviewing.
Your top priority: match a filter's certification to the violations (22 health-based violations). NSF certified filters →
The grade shown for Knightdale, NC falls at D or F, taken from the average of the composite Home Safety Scores of the city's scored ZIP codes. That composite can draw on several kinds of data, such as drinking water records, radon zone designations, PFAS monitoring and air quality, so a low grade does not by itself show which factor weighed most or what any single tap delivers. The report for your own ZIP code is the place to look at the pieces behind the number where you live.
How Knightdale Compares
Data: EPA SDWIS
Key Facts for Knightdale Residents
- Your city's water systems recorded 82 violations since 2021.
- Average of reported 90th-percentile lead results: 0.0065 mg/L.
- Homes built before 1986: 20% - older plumbing may contain lead solder.
- Estimated remediation: $1,100 per household.
- Health risk index (ZipCheckup composite of CDC data): 10.55.
Knightdale's Water Providers
When a city is linked to 5 water systems, as Knightdale, NC is in federal records, water in one neighborhood may come from a different system than in another. The 3 systems with the largest reported populations are shown below, and their compliance records are kept separately, so a violation logged for one does not describe the others.
- D
- D
- D
Overview
We track home safety data for 1 ZIP code in Knightdale, North Carolina, covering 5 community water systems serving approximately 33,750 people. The EPA snapshots used for this build directly map water systems to 1 of 1 ZIP codes.
1 of 1 ZIP code with a reported violation count in the available EPA record (100%) have recorded EPA violations. 22 health-based violations appear in the available health breakdown.
Home Safety Score
Average Home Safety Score for Knightdale: D (50/100)
Model 4.0.0 uses four measured components across three equally weighted domains. If a required domain is unavailable, no score is published:
| Factor | What It Measures |
|---|---|
| Water Quality | EPA violations and compliance history |
| PFAS MCL Screen | UCMR 5 testing against the covered federal MCLs |
| Radon Risk | EPA radon zone classification |
| Annual AQI | EPA AirData county-year median with at least 90 observed days |
Water Sources
Knightdale water systems draw from: Groundwater, Surface water.
Lead & Copper
- Average of reported 90th-percentile lead results: 0.0065 mg/L (EPA action level: 0.015 mg/L)
- 0 of 1 ZIP code with known status exceed the EPA lead action level
Radon Risk
1 of 1 ZIP records with known zones is in EPA Radon Zone 2.
The EPA recommends testing all homes regardless of radon zone. County radon zones cannot replace an in-home radon test.
Top Contaminants
| Contaminant | Category | Violations | ZIPs Affected |
|---|---|---|---|
| Consumer Confidence Rule | Reporting | 30 | 1 |
| Chlorine | Disinfectant | 24 | 1 |
| Gross Alpha (excl. radon and uranium) | Radionuclides | 18 | 1 |
| Revised Total Coliform Rule | Microbiological | 18 | 1 |
| Public Notice Rule | Reporting | 16 | 1 |
Areas with Most Violations
| ZIP Code | Safety Score | Violations | Health-Based | System |
|---|---|---|---|---|
| 27545 | D | 82 | 22 | Rockbridge S/d |
All ZIP Codes in Knightdale
- 27545 [D] - 82 violations ⚠
Data Sources
- Water quality: EPA Safe Drinking Water Information System (SDWIS)
- Lead/copper: EPA Lead and Copper Rule sampling data
- Radon: EPA Map of Radon Zones
Reporting periods vary by source. Missing data is shown as unavailable, not as zero.
Knightdale Community Health Snapshot
Source: CDC PLACES (County-level estimates). County health indicators are shown for context only and are not linked to this area's water records.
Compared to National Average
Vertical line = national average. ■ Above national · ■ Below national
What's in Knightdale's Water?
Based on EPA violation records. Check your ZIP code report for system-specific contaminant data.
Knightdale Infrastructure Age
Housing age data helps assess potential lead pipe and infrastructure risks. Newer housing stock generally means lower plumbing-related contamination risk.
Source: U.S. Census Bureau American Community Survey (ACS).
Housing Age Profile
Remodels change the picture: a 2008 median in Knightdale says nothing about pipes swapped out or repaired since construction.
Most homes in Knightdale were built after 1986; lead exposure at a tap still depends on its service line and plumbing. Older homes should still be tested.
Source: U.S. Census Bureau ACS B25034.
How Remediation Costs Compare in Knightdale
In Knightdale, estimated remediation comes to 1% or less of the median home value.
Estimated remediation costs in Knightdale can be compared with local home values. The $600–$2,300 estimated range can be set against the median property value; actual costs vary by home. Home values are 28% above the North Carolina average.
Knightdale: Lead Risk & Vulnerable Populations
Why children are most at risk: The CDC states that no safe blood lead level in children has been identified. Children under 6 absorb lead more readily than adults, and even low levels can cause developmental delays, learning difficulties, and behavioral problems.
While lead results averaged over Knightdale ZIP codes come in under 10 micrograms per liter, that figure combines many 90th-percentile values and cannot describe one building, including the 20% of housing that predates 1986.
Sources: EPA Lead and Copper Rule, U.S. Census Bureau ACS, CDC childhood lead poisoning prevention guidelines.
Knightdale: NFIP Claim Records and Water-Quality Context
Historical NFIP data for Knightdale contains 6 flood insurance claims. Among claims with payment data, the average reported building, contents, and ICC component sum is $9,638. Among ZIP codes with claim records, 0% have an A- or V-family dominant rated zone recorded in those historical claims. This is not a complete current FEMA property-map inventory.
How flooding affects water quality: Flood events can introduce sewage, agricultural runoff, and industrial chemicals into water supplies. Even after floodwaters recede, contamination can persist in wells and aging infrastructure. The $1,100 remediation estimate shown here excludes flood insurance and is not derived from NFIP claim count.
Claim count does not establish current property risk. Check the exact address in FEMA's current map and obtain a property-specific insurance quote when relevant.
Source: historical FEMA National Flood Insurance Program (NFIP) claim records. No current FEMA property-map designation is asserted.
What You Can Do in Knightdale
- Test your water at home. City-level data shows averages - your tap may differ. Check the certification, price and turnaround time of any water test kit or lab service.
- Install a certified water filter. For Consumer Confidence Rule, listed in the water-quality records for Knightdale: if it is a rule or reporting requirement rather than a contaminant, ask your utility what the record involved; for bacteria, follow any boil-water notice from your utility; for a specific chemical contaminant, check whether a filter is certified to reduce it. Not every contaminant has a consumer filter certification.
- Check your home's plumbing. Homes built before 1986 may have lead solder in pipes. A licensed plumber can assess your risk.
- Review your water system's CCR. If you use a community water system, request its annual Consumer Confidence Report for system-level test results or find it online.
Deep Dive Reports
Detailed analysis for Knightdale, NC