Miola Lake
Miami County, Kansas215 acresView mapDirections
Not enough samples to grade — no nutrient or algae measurement meets the evidence bar (at least 3 samples within 10 years). No letter yet. Here is what we do have.
- Impaired · Nutrients (phosphorus, nitrogen)
- 43 ft max depth
- Limited data
Miola Lake in Miami County, Kansas is not rated for water quality — its monitoring record does not meet the evidence bar. Water clarity: 5.2 ft visibility. Phosphorus: 20 µg/L. Chlorophyll-a (algae): 10.4 µg/L. Surface area: 215 acres.
- Clarity
- 5.2 ft
- Max depth
- ~43 ft est.
- Area
- 215 acres
- Phosphorus
- 20 µg/L
- Chlorophyll-a
- 10.4 µg/L
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Watch Miola Lake’s letter
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Why Miola 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 Miola Lake, no nutrient or algae measurement meets the evidence bar (at least 3 samples within 10 years). Sampling here has recorded water clarity, phosphorus and algae (chlorophyll-a).
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 KDHE and volunteer programs, and published through the EPA Water Quality Portal. Read the full grading methodology.
Miola Lake is a 215-acre lake in Miami County, Kansas with an estimated average depth of about 43 feet.
Source: EPA Water Quality Portal sampling records, KDHE, last sampled 2015-08-12. Grade methodology: LakeQuality methodology.
Swimming Safety
Not ratedLimited data
The letter is not a swimming clearance. Miola Lake is listed impaired under Clean Water Act §303(d) (IR 5) for nutrients (phosphorus, nitrogen). Check local advisories before you swim.
Water quality measurements for Miola Lake
These readings exist but are not enough for an A–F grade — see why.
Murky, only visible to about 5.2 ft. Phosphorus 20 µg/L. Chlorophyll-a 10.4 µg/L. TSI 51.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | 5.2 ft | Not graded |
| Phosphorus | 20 µg/L | Not graded |
| Chlorophyll-a (Algae) | 10.4 µg/L | Not graded |
| Trophic State Index (TSI) | 51 | Eutrophic |
High nutrients, frequent algae, reduced clarity
Lake Details
| Characteristic | Value |
|---|---|
| Maximum Depth | ~43 ft est. |
| Average Depth | ~13 ft est. |
| Surface Area | 215 acres |
Depth marked “est.” is a modeled maximum from GLOBathy (Khazaei et al. 2022, CC0), not a measured survey. Kansas has not published bathymetry for Miola Lake.
Lake Size & Watershed
Size, shoreline, and watershed area from HydroLAKES (HydroSHEDS). Mean depth here is modelled, not surveyed — HydroLAKES v1.0 estimates lake depth from surrounding terrain rather than from soundings. Treat it as an approximation, and prefer a state bathymetric survey where one exists.
Fishing Miola Lake
Reservoir Info (USACE NID)
Miola Lake is a man-made reservoir impounded by the Lake Miola (completed 1957), built primarily for water supply on the Dorsey Branch; earth-type dam, 54 ft tall and 2,100 ft long.
- Surface area
- 215 ac
- Normal storage
- 2,960 ac-ft
- Max storage
- 6,095 ac-ft
- Drainage area
- 5.73 sq mi
- Hazard class
- High
- Owner
- PAOLA, CITY OF
Source: USACE National Inventory of Dams, NID ID KS02505 · Operator website
EPA Impairment Status
Miola Lake is officially listed as impaired under Clean Water Act §303(d) in the 2024 EPA reporting cycle (IR category 5).
Causes of impairment
Source: EPA ATTAINS assessment unit KS-LM051001 · Official waterbody report
Graded lakes near Miola Lake
Miola Lake has no grade, but these lakes within a short drive do.
Nearby Lakes in Miami County
Frequently asked questions about Miola Lake
Where is Miola Lake?
- Miola Lake is a lake in Miami County, Kansas. 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 Miola Lake?
- Miola Lake in Miami County, Kansas is not rated for water quality — its monitoring record does not meet the evidence bar. Water clarity: 5.2 ft visibility. Phosphorus: 20 µg/L. Chlorophyll-a (algae): 10.4 µg/L. Surface area: 215 acres.
Is Miola Lake safe to swim in?
- The letter is not a swimming clearance. Miola Lake is listed impaired under Clean Water Act §303(d) (IR 5) for nutrients (phosphorus, nitrogen). Check local advisories before you swim.
How deep is Miola Lake?
- No published bathymetric survey covers Miola Lake, so its depth has not been measured. The HydroLAKES global model estimates an average depth of about 43 feet, but that is a modelled estimate derived from surrounding terrain rather than a measurement on the water, so treat it as approximate. The lake covers 215 acres.
Explore Miola Lake across LakeQuality
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Where this data comes from
5 measurements from 1 monitoring station, 2015. Retrieved from the EPA Water Quality Portal on 2026-08-02.
Collected and reported by
- Kansas Department Of Health And Environment
21KAN001_WQX5 samples · 2015
Analytical methods
- Depth, Secchi disk depth
- Phosphorus by Colorimetry
- 10200 H ~ Chlorophyll a-b-c Determination
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
Lake size & watershed from HydroLAKES (HydroSHEDS)