Jordenelle Lake
Wasatch County, UtahView mapDirections
Not Rated: one monitoring station are on record, but they measured water clarity only. LakeQuality’s A–F method grades total phosphorus, total nitrogen, chlorophyll-a, and turbidity; clarity is shown, not scored.
- Limited data
Jordenelle Lake in Wasatch County, Utah is not rated for water quality — its monitoring record does not meet the evidence bar. Water clarity: 10.7 ft visibility.
- Clarity
- 10.7 ft
- Trend
- ↓ Declining
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Stays near Jordenelle Lake
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Watch Jordenelle Lake’s letter
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Why Jordenelle Lake has no grade
Jordenelle Lake has monitoring on record from one station, but only water clarity was measured. LakeQuality’s A–F letter uses total phosphorus, total nitrogen, chlorophyll-a, and turbidity against EPA National Lakes Assessment condition classes. With none of those grading measurements on record, Jordenelle Lake is Not Rated — not an F. Its 10.7-foot median from 40 readings collected 2012–2016 is still shown as clarity, but clarity alone cannot earn a letter.
Not Rated is EPA Integrated Reporting Category 3 — insufficient information. Everything below that has been measured is still reported on this page.
Sampling is run by Utah DWQ and volunteer programs, and published through the EPA Water Quality Portal. Read the full grading methodology.
Jordenelle Lake is a lake in Wasatch County, Utah. Overall water quality is declining over recent sampling years.
Source: EPA Water Quality Portal sampling records, Utah DWQ, last sampled 2016-07-12. Grade methodology: LakeQuality methodology.
What Jordenelle Lake is good for
From access and monitoring records, not editorial picks.
- Clear water10.7 ft of visibility
Swimming Safety
Not ratedLimited data
The letter is not a swimming clearance. Check local advisories before you swim.
Water quality measurements for Jordenelle Lake
These readings exist but are not enough for an A–F grade — see why.
Good clarity, visible to about 10.7 ft. TSI 43.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | 10.7 ft | Not graded |
| Phosphorus | No recent samples | |
| Chlorophyll-a (Algae) | No recent samples | |
| Trophic State Index (TSI) | 43 | Mesotrophic |
Moderate nutrients, good water quality
Fishing Jordenelle Lake
Water Quality Trend: ↓ Declining
Based on 14 years of monitoring data (2020-2025).
| Metric | Trend | Change/Year | Years |
|---|---|---|---|
| Water Clarity | → Stable | +0.046 m/yr | 14 |
| Phosphorus | ↓ Declining | +1.14 µg/L/yr | 6 |
| Chlorophyll-a | → Stable | +0.01 µg/L/yr | 12 |
Reservoir Info (USACE NID)
Jordenelle Lake is a man-made reservoir impounded by the Jordanelle Dam (completed 1993), built primarily for water supply on the Provo; earth-type dam, 391 ft tall and 3,820 ft long.
- Normal storage
- 0 ac-ft
- Max storage
- 363,354 ac-ft
- Drainage area
- 261.19 sq mi
- Hazard class
- High
- Owner
- DEPARTMENT OF THE INTERIOR
Source: USACE National Inventory of Dams, NID ID UT10204 · Operator website · Matched by proximity (0.49 km)
Graded lakes near Jordenelle Lake
Jordenelle Lake has no grade, but these lakes within a short drive do.
Nearby Lakes in Wasatch County
Frequently asked questions about Jordenelle Lake
Where is Jordenelle Lake?
- Jordenelle Lake is a lake in Wasatch County, Utah. LakeQuality has not rated this lake (UNRATED) — the only measurement available is water clarity, which is not a water-quality indicator on its own — EPA's National Lakes Assessment does not grade clarity.
What is the water quality grade for Jordenelle Lake?
- Jordenelle Lake in Wasatch County, Utah is not rated for water quality — its monitoring record does not meet the evidence bar. Water clarity: 10.7 ft visibility.
Is Jordenelle Lake safe to swim in?
- The letter is not a swimming clearance. Check local advisories before you swim.
Explore Jordenelle Lake across LakeQuality
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Where this data comes from
40 measurements from 1 monitoring station, 2012–2016. Retrieved from the EPA Water Quality Portal on 2026-08-02.
Collected and reported by
- UC Region of USBOR
UC_REGION_USBOR_WQX40 samples · 2012–2016
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.