Lake Taneycomo @ Rockaway Beach
Taney County, MissouriView mapDirections
Clarity, phosphorus, and algae all sit in the cleanest band for this region.
↑ up from B at the last regrade
- Oligotrophic
- #1 of 9 in the county
- Public access
Lake Taneycomo @ Rockaway Beach in Taney County, Missouri has a water quality grade of A (Excellent). Water clarity: 8.7 ft visibility. Phosphorus: 13.5 µg/L. Chlorophyll-a (algae): 1.1 µg/L.
- Clarity
- 8.7 ft
- Typical in September
- 64°F
- Type
- Oligotrophic
- Trend
- → Stable
- Public access
- Yes
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Watch Lake Taneycomo @ Rockaway Beach’s letter
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Lake Taneycomo @ Rockaway Beach is a cold, clear oligotrophic lake in Taney County, Missouri. Water quality is graded A based on 2 sampling years through 2024. Phosphorus level is declining over recent sampling years. Limited fish-species data available. Public access is available with 1 public boat landing. Compared to the 8 other monitored lakes in Taney County, Lake Taneycomo @ Rockaway Beach ranks #1 for water quality.
Source: EPA Water Quality Portal sampling records, Missouri DNR, last sampled 2024-09-16. Grade methodology: LakeQuality methodology.
What Lake Taneycomo @ Rockaway Beach is good for
From access and monitoring records, not editorial picks.
- Boat launch1 documented ramp
Swimming Safety
Grade onlyLow algae
Based on clarity and algae grades from past sampling — we do not hold live water temperature and a current cyanobacteria reading for this lake. Check your state or county health department before you swim.
The A is nutrients and algae, not a swimming clearance. Check local advisories before you swim.
Water Quality Grade: A (Excellent)
Moderate clarity, visible to about 8.7 ft. Phosphorus 13.5 µg/L. Chlorophyll-a 1.1 µg/L. TSI 40. The letter is not a swimming clearance.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | 8.7 ft | Not graded |
| Phosphorus | 13.5 µg/L | Good |
| Chlorophyll-a (Algae) | 1.1 µg/L | Good |
| Trophic State Index (TSI) | 40 | Oligotrophic |
Low nutrients, clear water. The letter is not a swimming clearance.
Water Temperature
Lake Taneycomo @ Rockaway Beach typically sits around 64°F at the surface in September. Summer average is about 65°F. 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 →
Recreation & Access
- Rockaway Beach AccessPublic
Named access points in the USGS National Boat Ramps inventory, within about 3 miles. More lakes with boat ramps
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 |
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.
County Ranking
Ranked #1 of 9 lakes in Taney County
Nearby Lakes in Taney County
Frequently asked questions about Lake Taneycomo @ Rockaway Beach
Where is Lake Taneycomo @ Rockaway Beach?
- Lake Taneycomo @ Rockaway Beach is a lake in Taney County, Missouri. LakeQuality grades it A for nutrients and algae. The letter is not a swimming clearance.
What is the water quality grade for Lake Taneycomo @ Rockaway Beach?
- Lake Taneycomo @ Rockaway Beach in Taney County, Missouri has a water quality grade of A (Excellent). Water clarity: 8.7 ft visibility. Phosphorus: 13.5 µg/L. Chlorophyll-a (algae): 1.1 µg/L.
Is Lake Taneycomo @ Rockaway Beach safe to swim in?
- The A is nutrients and algae, not a swimming clearance. Check local advisories before you swim.
What is the water temperature of Lake Taneycomo @ Rockaway Beach?
- Lake Taneycomo @ Rockaway Beach typically sits around 64°F at the surface in September, from 85 EPA Water Quality Portal field readings (2010–2024). That is a typical value for the month, not a live reading.
Are there boat ramps on Lake Taneycomo @ Rockaway Beach?
- Lake Taneycomo @ Rockaway Beach has 1 documented boat landing in the USGS National Boat Ramps inventory. Named access points include Rockaway Beach Access. Public access is listed as yes.
Explore Lake Taneycomo @ Rockaway Beach across LakeQuality
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. The letter is not a swimming clearance.
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Where this data comes from
86 measurements from 1 monitoring station, 2020–2024. Retrieved from the EPA Water Quality Portal on 2026-08-02.
Collected and reported by
- Univ. of Missouri, Columbia
UMC86 samples · 2020–2024
Analytical methods
- Depth, Secchi disk in meters
- 4500 P E ~ Phosphorus in Water by Colorimetry- Ascorbic Acid Method
- 445.0 ~ EPA; Chlorophyll and Pheophytin in Algae by Fluorescence
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
Regulated discharger data from EPA ECHO (ICIS-NPDES)
Named boat-access points from the USGS National Boat Ramps inventory