North Lake
North Lake in Hillsborough County, Florida is not rated for water quality — its monitoring record does not meet the evidence bar. Surface area: 54 acres.
- Area
- 54 acres
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Why North Lake has no grade
We grade a lake only when the monitoring record supports a letter: at least three phosphorus or chlorophyll-a samples in the last ten years, scored against EPA National Lakes Assessment thresholds for this lake’s ecoregion. For North Lake, no nutrient or algae measurement meets the evidence bar (at least 3 samples within 10 years).
Not Rated is not an F. It is EPA Integrated Reporting Category 3 — insufficient information. The water here may be excellent or poor; nobody has measured enough of it to say. Everything below that has been measured is still reported on this page.
Sampling is run by FDEP and volunteer programs, and published through the EPA Water Quality Portal. Read the full grading methodology.
North Lake is a 54-acre lake in Hillsborough County, Florida.
Source: EPA Water Quality Portal sampling records, FDEP, last sampled 2025-02-12. Grade methodology: LakeQuality methodology.
Watch North Lake water quality
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Swimming Safety
Not ratedBacteria advisory
Not rated for swimming — there is not enough monitoring data to judge this lake
Water quality measurements for North Lake
These readings exist but are not enough for an A–F grade — see why.
No clarity data.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | No recent samples | |
| Phosphorus | No recent samples | |
| Chlorophyll-a (Algae) | No recent samples |
Where to stay near North Lake
Compare lakeside cabins, hotels, and vacation rentals near North Lake in Hillsborough County, Florida — live availability and prices for your trip. Switch the map to Satellite to see the lake and how close each stay is to the water.
Top-rated places to stay near North Lake
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Lake Details
| Characteristic | Value |
|---|---|
| Surface Area | 54 acres |
No bathymetric survey has been published for North Lake, so its depth is not documented here.
Fishing North Lake
Reservoir Info (USACE NID)
North Lake is a man-made reservoir impounded by the North Lake Dam, built primarily for recreation on the Cypress Creek; earth-type dam, 9 ft tall and 130 ft long.
- Surface area
- 54 ac
- Normal storage
- 108 ac-ft
- Max storage
- 291 ac-ft
- Hazard class
- Significant
- Owner
- RAYMOND W SWIFT, SR
Source: USACE National Inventory of Dams, NID ID FL12025 · Operator website
EPA Impairment Status
North Lake is officially listed as impaired under Clean Water Act §303(d) in the 2022 EPA reporting cycle (IR category 5).
Causes of impairment
Source: EPA ATTAINS assessment unit FL1739 · Official waterbody report · Matched by proximity (1.49 km)
Regulated Pollution Sources Nearby
1 EPA-permitted facility operate within about 5 miles of North Lake under Clean Water Act (NPDES) discharge permits, including 1 classified by the EPA as major discharger. 1 facility has a reported Clean Water Act violation in the past three years.
- South County Regional AwwtpRuskin · 1.8 mi away · NPDES FL0028061MajorRecent violation
Facilities permitted to discharge under the Clean Water Act within ~5 miles; proximity does not by itself mean a facility affects this lake. Source: EPA ECHO (ICIS-NPDES), as of 2026-07.
Graded lakes near North Lake
North Lake has no grade, but these lakes within a short drive do.
Nearby Lakes in Hillsborough County
Frequently asked questions about North Lake
Where is North Lake?
- North Lake is a lake in Hillsborough County, Florida. LakeQuality has not rated this lake (UNRATED) — no nutrient or algae measurement meets the evidence bar (at least 3 samples within 10 years).
What is the water quality grade for North Lake?
- North Lake in Hillsborough County, Florida is not rated for water quality — its monitoring record does not meet the evidence bar. Surface area: 54 acres.
Is North Lake safe to swim in?
- Not rated for swimming — there is not enough monitoring data to judge this lake. North Lake is not rated for water quality — its monitoring record does not meet the evidence bar. Always check local health department advisories before swimming.
Explore North Lake across LakeQuality
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Where this data comes from
2 measurements from 1 monitoring station, 2025. Retrieved from the EPA Water Quality Portal on 2026-08-02.
Collected and reported by
- Submitting organization not recorded for these samples2 samples · 2025
Monitoring station identifiers (1)
Grade thresholds from the EPA National Lakes Assessment (EPA 841-R-24-006, Table 6-3), applied by ecoregion. See how grades are calculated and data sources.
Other records on this page
Impairment status from EPA ATTAINS 303(d) database
Regulated discharger data from EPA ECHO (ICIS-NPDES)