Two things could not be determined from the record.
Public records for Tyrrell County cover 48 named waterways across 23 sub-watersheds, and 3 active water systems serving about 4,168 people. Below is what those records establish — and what they don't.
48waterways on record
2not considered safe for swimming
18under fish-consumption advisories
4never assessed at all
3water systems
1with an unresolved health-based violation
What the records flag
Needs attention
Currituck Sound, near you, is not considered safe for swimming
A state determination under the Clean Water Act. This creek is close to you, but your water doesn't flow from it.
Listed cause
ENTEROCOCCUS
Official determination, waterway near you · U.S. EPA / state agency — ATTAINS assessed waters
Needs attention
Fish from 18 nearby waterways are under consumption advisories
The state has determined this water doesn't meet standards for eating the fish caught in it. It's close to you, but your water doesn't flow from it.
Listed cause
DIOXIN IN FISH TISSUE
Listed cause
COPPER
Listed cause
PH, HIGH
Official determination, waterway near you · U.S. EPA / state agency — ATTAINS assessed waters
Showing 12 of 48 waterways on record — the full report has all of them. "Not considered safe" is a state determination under the Clean Water Act, not a measurement taken today. "Not assessed" means unknown — never clean.
Drinking water systems
System
Serves
Health-based violations since 2021
Without recorded resolution
Tyrrell County Water
3,177
1
1
Columbia Water System
891
0
0
Alligator River Marina
100
0
0
Health-based violations are shown alone — administrative (paperwork) records are counted separately and never added in, because most violation records are paperwork.
What the record doesn’t establish
4 nearby waterways have never been assessed — their condition is unknown.
Whether your home's own plumbing adds lead or copper — no dataset covers indoor pipes.
Common questions
Is tap water safe to drink in Tyrrell County?
No public dataset can establish that any tap is safe or unsafe — records have gaps, lag by up to a quarter, and say nothing about a building's own plumbing or private wells.
What the records do show: 3 active water systems serve Tyrrell County. 1 of them currently has an unresolved health-based violation on record. Health-based violations are counted separately from paperwork violations, which make up most records.
Which waterways in Tyrrell County are not considered safe for swimming?
State assessments under the Clean Water Act list Currituck Sound, Dowdys Bay (Poplar Branch Bay) as not supporting recreation. That is an official determination about the waterway, not a measurement taken today.
41 of the county's waterways on record have never been assessed for swimming — their condition is unknown.
How current is this data?
Datasets refresh on their agencies' cycles — EPA drinking-water records quarterly, state waterway assessments roughly every two years. The sources table on this page lists the version and retrieval date of every dataset used.
Records lag their agencies' refresh cycles — a recent change may not appear yet. Absence from a dataset is absence of a record, never evidence that water is clean.
Go deeper
The interactive report adds the map, monitoring-station samples, permitted operations in connected watersheds, and plain-language explanations of every term.