Lake Taneycomo @ Rockaway Beach is a cold, clear oligotrophic lake in Taney County, Missouri. Water quality is graded B based on 3 sampling years through 2024. Phosphorus level is declining over recent sampling years. Limited fish-species data available. Public access is available with 2 public boat landings. Compared to the 10 other monitored lakes in Taney County, Lake Taneycomo @ Rockaway Beach ranks #4 for water quality.
Source: EPA Water Quality Portal sampling records, Missouri DNR, last sampled 2024-09-16. Grade methodology: LakeGrade methodology.
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Swimming Safety
Good for swimming, clear water with low algae levels
Water Quality Grade: B, Good
Moderate clarity, visible to about 8.7 ft. Phosphorus level: 13.5 µg/L. Chlorophyll-a: 1.1 µg/L. Trophic State Index: 40.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | 8.7 ft | C |
| Phosphorus | 13.5 µg/L | A |
| Chlorophyll-a (Algae) | 1.1 µg/L | A |
| Trophic State Index (TSI) | 40 | Oligotrophic |
Low nutrients, clear water, excellent for swimming
Where to stay near Lake Taneycomo @ Rockaway Beach
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Fishing Lake Taneycomo @ Rockaway Beach
Water Quality Trend: → Stable
Based on 5 years of monitoring data (2020-2025).
| Metric | Trend | Change/Year | Years |
|---|---|---|---|
| Water Clarity | → Stable | +0.019 m/yr | 5 |
| Phosphorus | ↓ Declining | +0.65 µg/L/yr | 5 |
| Chlorophyll-a | ↑ Improving | -0.07 µg/L/yr | 5 |
Recreation & Access
Water Temperature
Lake Taneycomo @ Rockaway Beach averages about 65°F at the surface in summer, usually warmest in Aug (about 69°F) and coldest in Apr (about 53°F). These are typical values by month — not a live reading.
Typical surface water temperature by month, from 85 field readings (2010–2024) via the EPA Water Quality Portal. See the full Lake Taneycomo @ Rockaway Beach water temperature breakdown →
Location
County Ranking
Ranked #4 of 11 lakes in Taney County
Cleaner Lakes Within 30 Miles
Lake Taneycomo @ Rockaway Beach holds Grade B. 3 nearby lakes hold higher grades.
- ALake Taneycomo Ab. Bee Cr. ArmTaney County · 2.8 mi · Higher grade (B → A)
- ALake Taneycomo Nr. Roark Cr.Taney County · 4.3 mi · Higher grade (B → A)
- ALake Taneycomo @ Shepherd of the Hills FhTaney County · 10.2 mi · Higher grade (B → A)
Nearby Lakes in Taney County
Explore Lake Taneycomo @ Rockaway Beach across LakeGrade
Species activity outlook by water temperature and season
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Where to stay at Missouri's top lakes, each with its grade
Low nutrients, clear water, excellent for swimming
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More Missouri Lake Rankings
Other Grade B Lakes in Missouri
Stone County · Clarity: 7.2 ft
Stone County · Clarity: 6.9 ft
Stone County · Clarity: 7.3 ft
Stone County · Clarity: 4.3 ft
Stone County · Clarity: 7.9 ft
Stone County · Clarity: 6 ft
Oligotrophic Lakes in Missouri
More records, surveys & data sources
Regulated Pollution Sources Nearby
11 EPA-permitted facilities operate within about 5 miles of Lake Taneycomo @ Rockaway Beach under Clean Water Act (NPDES) discharge permits. 9 facilities have a reported Clean Water Act violation in the past three years.
- Rockaway Beach WwtpRockaway Beach · 0.7 mi away · NPDES MO0108162Recent violation
- Dogwood Estates Subdivision WwtpBranson · 1.8 mi away · NPDES MO0131997Recent violation
- Lakewood Village WwtfBranson · 1.9 mi away · NPDES MO0140830Recent violation
- Rolling Meadows Community LlcForsyth · 2.7 mi away · NPDES MO0108685Recent violation
- Leroy HamlingForsyth · 2.8 mi away · NPDES MO0103381Recent violation
- Hideaway Lodge WwtfKirbyville · 3.2 mi away · NPDES MO0108154Recent 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.
Data Sources
Water quality data from the EPA Water Quality Portal
Regulated discharger data from EPA ECHO (ICIS-NPDES)
Grading methodology based on Metropolitan Council standards
Public boat-access points from the USGS National Boat Ramps inventory
Most recent sample: 2024-09-16
Monitoring stations: 1