Lake Mangonia North
Lake Mangonia North in Palm Beach County, Florida is not rated for water quality — its monitoring record does not meet the evidence bar.
- Typical in August
- 88°F
- Trend
- ↓ Declining
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Why Lake Mangonia North 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 Lake Mangonia North, 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.
Lake Mangonia North is a lake in Palm Beach County, Florida. Overall water quality is declining over recent sampling years.
Source: EPA Water Quality Portal sampling records, FDEP, last sampled 2020-02-06. Grade methodology: LakeQuality methodology.
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Swimming Safety
Not ratedBacteria D
Based on E. coli testing, Lake Mangonia North frequently exceeded the EPA safe-swimming threshold (235 MPN/100mL) — on 20% of 10 samples across 3 seasons.
This is a historical summary of past testing, not a current condition — bacteria levels change quickly, especially after rain. Always check Florida’s current beach and health-department advisories before swimming.
Water quality measurements for Lake Mangonia North
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 Lake Mangonia North
Compare lakeside cabins, hotels, and vacation rentals near Lake Mangonia North in Palm Beach 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 Lake Mangonia North
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Water Temperature
Lake Mangonia North typically sits around 88°F at the surface in August. Summer average is about 87°F. Usually warmest in Aug (about 88°F) and coldest in Feb (about 70°F). These are typical values by month — not a live reading.
Typical surface water temperature by month, from 17 field readings (2010–2020) via the EPA Water Quality Portal. See the full Lake Mangonia North water temperature breakdown →
Fishing Lake Mangonia North
Water Quality Trend: ↓ Declining
Based on 3 years of monitoring data (2020-2025).
| Metric | Trend | Change/Year | Years |
|---|---|---|---|
| Water Clarity | → Stable | 0 m/yr | 3 |
| Phosphorus | ↓ Declining | +0.65 µg/L/yr | 3 |
EPA Impairment Status
Lake Mangonia North is officially listed as impaired under Clean Water Act §303(d) in the 2022 EPA reporting cycle (IR category 4C).
Causes of impairment
Source: EPA ATTAINS assessment unit FL3245C1 · Official waterbody report · Matched by proximity (0.71 km)
Nearby Lakes in Palm Beach County
Frequently asked questions about Lake Mangonia North
Where is Lake Mangonia North?
- Lake Mangonia North is a lake in Palm Beach 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 Lake Mangonia North?
- Lake Mangonia North in Palm Beach County, Florida is not rated for water quality — its monitoring record does not meet the evidence bar.
Is Lake Mangonia North safe to swim in?
- Based on E. coli testing, Lake Mangonia North frequently exceeded the EPA safe-swimming threshold (235 MPN/100mL) — on 20% of 10 samples across 3 seasons. That works out to a bacteria swim-safety grade of D — a historical summary of past testing, not a current reading. Lake Mangonia North is not rated for water quality — its monitoring record does not meet the evidence bar. Bacteria levels can spike quickly after heavy rain, so always check Florida's current beach and health-department advisories before you swim.
What is the water temperature of Lake Mangonia North?
- Lake Mangonia North typically sits around 88°F at the surface in August, from 17 EPA Water Quality Portal field readings (2010–2020). That is a typical value for the month, not a live reading.
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Where this data comes from
2 measurements from 1 monitoring station, 2020. Retrieved from the EPA Water Quality Portal on 2026-08-02.
Collected and reported by
- Submitting organization not recorded for these samples2 samples · 2020
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