Orange-Killarney Lake
Orange-Killarney Lake in Orange County, Florida is not rated for water quality — its monitoring record does not meet the evidence bar.
- Typical in August
- 87°F
- Trend
- ↓ Declining
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Why Orange-Killarney 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 Orange-Killarney 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.
Orange-Killarney Lake is a lake in Orange County, Florida. Overall water quality is declining over recent sampling years.
Source: EPA Water Quality Portal sampling records, FDEP, last sampled 2025-04-28. Grade methodology: LakeQuality methodology.
Watch Orange-Killarney Lake water quality
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Swimming Safety
Not ratedBacteria A
Based on E. coli testing, Orange-Killarney Lake never exceeded the EPA safe-swimming threshold (235 MPN/100mL) — on 0% of 28 samples across 8 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 Orange-Killarney 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 Orange-Killarney Lake
Compare lakeside cabins, hotels, and vacation rentals near Orange-Killarney Lake in Orange 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 Orange-Killarney Lake
Availability and prices from Stay22 partners (Booking.com, Vrbo, Expedia). We may earn a commission from bookings, at no extra cost to you.
Planning a whole trip? See where to stay at Florida’s top lakes →
Water Temperature
Orange-Killarney Lake typically sits around 87°F at the surface in August. Summer average is about 86°F. Usually warmest in Jul (about 87°F) and coldest in Feb (about 68°F). These are typical values by month — not a live reading.
Typical surface water temperature by month, from 68 field readings (2010–2025) via the EPA Water Quality Portal. See the full Orange-Killarney Lake water temperature breakdown →
Fishing Orange-Killarney Lake
Water Quality Trend: ↓ Declining
Based on 6 years of monitoring data (2020-2025).
| Metric | Trend | Change/Year | Years |
|---|---|---|---|
| Water Clarity | ↓ Declining | -0.231 m/yr | 6 |
| Phosphorus | ↓ Declining | +4.43 µg/L/yr | 6 |
EPA Impairment Status
Orange-Killarney Lake is officially listed as impaired under Clean Water Act §303(d) in the 2022 EPA reporting cycle (IR category 4A).
Causes of impairment
A Total Maximum Daily Load (TMDL) plan has been approved.
Source: EPA ATTAINS assessment unit FL2997V · Official waterbody report · Matched by proximity (1.65 km)
Graded lakes near Orange-Killarney Lake
Orange-Killarney Lake has no grade, but these lakes within a short drive do.
Nearby Lakes in Orange County
Frequently asked questions about Orange-Killarney Lake
Where is Orange-Killarney Lake?
- Orange-Killarney Lake is a lake in Orange 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 Orange-Killarney Lake?
- Orange-Killarney Lake in Orange County, Florida is not rated for water quality — its monitoring record does not meet the evidence bar.
Is Orange-Killarney Lake safe to swim in?
- Based on E. coli testing, Orange-Killarney Lake never exceeded the EPA safe-swimming threshold (235 MPN/100mL) — on 0% of 28 samples across 8 seasons. That works out to a bacteria swim-safety grade of A — a historical summary of past testing, not a current reading. Orange-Killarney Lake 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 Orange-Killarney Lake?
- Orange-Killarney Lake typically sits around 87°F at the surface in August, from 68 EPA Water Quality Portal field readings (2010–2025). That is a typical value for the month, not a live reading.
Explore Orange-Killarney Lake across LakeQuality
Planning a trip around Canaveral?
Orange-Killarney Lake is about 40 miles from Canaveral National Seashore. Crowds there swing hard by season, so the month you pick changes both how busy the park is and what lodging costs.
Best time to visit Canaveral →More Florida Lake Rankings
Other Lakes in Florida
Where this data comes from
6 measurements from 3 monitoring stations, 2025. Retrieved from the EPA Water Quality Portal on 2026-08-02.
Collected and reported by
- FLORIDA LAKEWATCH
21FLKWAT_WQX6 samples · 2025
Monitoring station identifiers (3)
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