Rockport Mid Lake
Summit 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.
- Impaired · Algal growth
- Public access
- Limited data
Rockport Mid Lake in Summit County, Utah is not rated for water quality — its monitoring record does not meet the evidence bar. Water clarity: 12.3 ft visibility.
- Clarity
- 12.3 ft
- Trend
- ↓ Declining
- Public access
- Yes
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Stays near Rockport Mid Lake
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Watch Rockport Mid Lake’s letter
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Why Rockport Mid Lake has no grade
Rockport Mid 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, Rockport Mid Lake is Not Rated — not an F. Its 12.3-foot median from 36 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.
Rockport Mid Lake is a lake in Summit County, Utah. Overall water quality is declining over recent sampling years. Limited fish-species data available. Public access is available with 1 public boat landing.
Source: EPA Water Quality Portal sampling records, Utah DWQ, last sampled 2016-07-12. Grade methodology: LakeQuality methodology.
What Rockport Mid Lake is good for
From access and monitoring records, not editorial picks.
- Clear water12.3 ft of visibility
- Boat launch1 documented ramp
Swimming Safety
Not ratedBacteria advisory
The letter is not a swimming clearance. Rockport Mid Lake is listed impaired under Clean Water Act §303(d) (IR 5) for algal growth, pathogens (E. coli, fecal). Check local advisories before you swim.
Water quality measurements for Rockport Mid Lake
These readings exist but are not enough for an A–F grade — see why.
Good clarity, visible to about 12.3 ft. TSI 41.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | 12.3 ft | Not graded |
| Phosphorus | No recent samples | |
| Chlorophyll-a (Algae) | No recent samples | |
| Trophic State Index (TSI) | 41 | Mesotrophic |
Moderate nutrients, good water quality
Recreation & Access
- Rockport State ParkPublic
Named access points in the USGS National Boat Ramps inventory, within about 3 miles. More lakes with boat ramps
Fishing Rockport Mid Lake
Water Quality Trend: ↓ Declining
Based on 8 years of monitoring data (2020-2025).
| Metric | Trend | Change/Year | Years |
|---|---|---|---|
| Water Clarity | → Stable | -0.012 m/yr | 8 |
| Chlorophyll-a | ↓ Declining | +0.22 µg/L/yr | 2 |
EPA Impairment Status
Rockport Mid Lake is officially listed as impaired under Clean Water Act §303(d) in the 2024 EPA reporting cycle (IR category 5).
Causes of impairment
A Total Maximum Daily Load (TMDL) plan has been approved.
Source: EPA ATTAINS assessment unit UT-L-16020101-002_00 · Official waterbody report · Matched by proximity (0.59 km)
Graded lakes near Rockport Mid Lake
Rockport Mid Lake has no grade, but these lakes within a short drive do.
Nearby Lakes in Summit County
Frequently asked questions about Rockport Mid Lake
Where is Rockport Mid Lake?
- Rockport Mid Lake is a lake in Summit 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 Rockport Mid Lake?
- Rockport Mid Lake in Summit County, Utah is not rated for water quality — its monitoring record does not meet the evidence bar. Water clarity: 12.3 ft visibility.
Is Rockport Mid Lake safe to swim in?
- The letter is not a swimming clearance. Rockport Mid Lake is listed impaired under Clean Water Act §303(d) (IR 5) for algal growth, pathogens (E. coli, fecal). Check local advisories before you swim.
Are there boat ramps on Rockport Mid Lake?
- Rockport Mid Lake has 1 documented boat landing in the USGS National Boat Ramps inventory. Named access points include Rockport State Park. Public access is listed as yes.
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Where this data comes from
36 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_WQX36 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.
Other records on this page
Impairment status from EPA ATTAINS 303(d) database
Named boat-access points from the USGS National Boat Ramps inventory