Woodbury, Minnesota
Environmental Quality Report Card
Woodbury reports good air quality, with AQI levels better than the national average. Water tests indicate moderate conditions across key measures. Facility compliance with environmental standards is above the national average.
Air Quality (Annual Overview)
Grade AYearly average AQI (2024): 30.0. National average: 41.4. 44 moderate days, 1 unhealthy days recorded.
Water Quality (Key Indicators)
Grade CLatest pH level (2024): 8.12. Ideal range: 6.5–8.5.
Facility Violations
Grade AFacilities like factories and treatment plants had 0 significant and 362 total violations reported in 2024.
Water Quality (with EPA Standards)
Water quality measurements are provided by the Water Quality Portal , a collaboration between the USGS, EPA, and other agencies.
| Characteristic | Local Value | Safe Range | Grade | Last Measured |
|---|---|---|---|---|
| Turbidity | 9.91 NTU | <5 | C | 9/25/2024 |
| Ammonia | 0.16 mg/L | <0.5 | A | 10/21/2024 |
| pH | 8.12 | 6.5 - 8.5 | A | 10/28/2024 |
| Copper | 2.00 mg/L | <1.3 | F | 9/25/2024 |
| Zinc | 55.30 mg/L | <5 | F | 10/30/2024 |
| Nitrate | 0.34 mg/L | <10 | A | 10/30/2024 |
| Lead | 0.00 mg/L | <0.015 | A | 10/30/2024 |
| Arsenic | 3.33 mg/L | <0.01 | F | 8/11/2024 |
Water Quality (No EPA Standard)
These measurements do not have formal EPA standards but are still important indicators of local water quality.
| Characteristic | Local Value | Unit | Last Measured |
|---|---|---|---|
| Specific conductance | 269.50 | uS/cm | 10/28/2024 |
| Magnesium | 6.00 | mg/L | 10/30/2024 |
| Stream Physical Appearance, Minnesota (choice list) | 1.00 | N/A | 11/2/2024 |
| Nickel | 3.80 | ug/L | 10/30/2024 |
| Chloride | 28.70 | mg/L | 10/30/2024 |
| Total suspended solids | 62.00 | mg/L | 10/30/2024 |
| Perfluorooctanoic acid | 2.85 | ng/L | 9/29/2024 |
| Phosphorus | 0.08 | mg/L | 4/5/2025 |
| Temperature, water | 53.20 | deg F | 4/19/2025 |
| Hardness, Ca, Mg | 77.40 | mg/L | 10/30/2024 |
| Dissolved oxygen (DO) | 17.50 | mg/L | 4/19/2025 |
| Stream recreational suitability (choice list) | 2.00 | N/A | 11/2/2024 |
| Chlorophyll a, corrected for pheophytin | 2.10 | ug/L | 10/21/2024 |
| Volatile suspended solids | 25.00 | mg/L | 10/30/2024 |
| Aluminum | 99.00 | ug/L | 9/25/2024 |
| Kjeldahl nitrogen | 1.42 | mg/L | 10/30/2024 |
| Alkalinity, total | 100.00 | mg/L | 10/2/2024 |
| Nitrate + Nitrite | 0.34 | mg/L | 10/30/2024 |
| Potassium | 1.13 | mg/L | 10/2/2024 |
| Sulfate | 55.00 | mg/L | 10/21/2024 |
| Ammonia-nitrogen | 0.01 | mg/L | 9/25/2024 |
| Transparency, tube with disk | 100.00 | cm | 11/2/2024 |
| Depth, Secchi disk depth | 3.25 | ft | 5/12/2025 |
| Orthophosphate | 0.41 | mg/L | 10/30/2024 |
| Calcium | 21.10 | mg/L | 10/30/2024 |
| Lake recreational suitability (choice list) | 1.00 | N/A | 9/25/2024 |
| Perfluorobutanesulfonic acid | 1.72 | ng/L | 9/29/2024 |
| Perfluoroheptanoic acid | 0.89 | ng/L | 9/29/2024 |
| Lake physical appearance (choice list) | 3.00 | N/A | 9/25/2024 |
| Barium | 20.10 | ug/L | 9/3/2024 |
| Perfluorooctane sulfonic acid | 1.75 | ng/L | 9/29/2024 |
| Cadmium | 0.14 | ug/L | 8/26/2024 |
| Perfluoro-3-methoxypropanoic acid | 0.58 | ng/L | 9/29/2024 |
| Sodium | 5.64 | mg/L | 10/2/2024 |
| Bromide | 0.03 | mg/L | 9/3/2024 |
| Boron | 22.60 | ug/L | 9/3/2024 |
| Total dissolved solids | 146.00 | mg/L | 10/30/2024 |
| Perfluorononanoic acid | 0.55 | ng/L | 9/29/2024 |
| Organic carbon | 6.80 | mg/L | 10/2/2024 |
| Perfluorohexanesulfonic acid | 1.19 | ng/L | 9/29/2024 |
| Perfluorohexanoic acid | 2.27 | ng/L | 9/29/2024 |
| Chlorophyll a (probe relative fluorescence) | 32.60 | ug/L | 8/18/2024 |
| Chromium | 3.20 | ug/L | 10/30/2024 |
| Nitrite | 0.07 | mg/L | 10/20/2024 |
| Height, gage | 8.40 | ft | 9/25/2024 |
| Pheophytin a | 1.00 | ug/L | 10/21/2024 |
| Strontium | 98.70 | ug/L | 9/3/2024 |
| Iron | 169.00 | ug/L | 8/11/2024 |
| Perfluorovaleric acid | 2.14 | ng/L | 9/29/2024 |
| Perfluorobutanoate | 8.10 | ng/L | 9/29/2024 |
| Chlorophyll a | 1.00 | ug/L | 10/21/2024 |
| Chlorophyll b | 1.70 | ug/L | 10/21/2024 |
| Perfluoropentanesulfonic acid | 0.27 | ng/L | 9/29/2024 |
| Chlorophyll c | 2.20 | ug/L | 10/21/2024 |
| Manganese | 16.20 | ug/L | 8/11/2024 |
| Selenium | 1.83 | ug/L | 8/11/2024 |
| Carbonaceous biochemical oxygen demand, standard conditions | 0.60 | mg/L | 10/21/2024 |
| Cobalt | 6.89 | ug/L | 8/11/2024 |
| Salinity | 0.30 | ppt | 9/29/2024 |
| Dissolved oxygen saturation | 95.90 | % | 10/28/2024 |
| Chlorophyll a, free of pheophytin | 13.38 | ug/L | 10/28/2024 |
| Silicate | 12.00 | mg/L | 10/2/2024 |
| Molybdenum | 1.23 | ug/L | 7/10/2024 |
| Perfluorooctanesulfonamide | 0.39 | ng/L | 9/29/2024 |
| Nitrogen | 1122.90 | ug/L | 10/28/2024 |
| Depth, bottom | 8.87 | m | 10/28/2024 |
| 1-Heptanesulfonic acid, 1,1,2,2,3,3,4,4,5,5,6,6,7,7,7-pentadecafluoro- | 0.23 | ng/L | 9/29/2024 |
| Ammonium | 76.30 | ug/L | 10/28/2024 |
Air Quality Details (2024–2025)
The Air Quality Index (AQI) measures how clean or polluted the air is. A lower AQI means cleaner air. Main pollutants include particulate matter like PM2.5, ozone, and others regulated by EPA standards.
Air quality data sourced from OpenAQ, aggregating official monitoring stations.
| Yearly Average AQI | National Average AQI | Good Days | Moderate Days | Unhealthy Days | Worst Day AQI | Top Pollutant |
|---|---|---|---|---|---|---|
| 30 | 41.4 | 317 | 44 | 1 | 164 (on 6/2/2025) | PM2.5 |
Monthly AQI Trend
Monthly average AQI values over the past year. Lower values are better. Peaks may indicate pollution events.
Facility Compliance
Facility compliance and violation data come from the EPA's ECHO database.
1,223 monitored facilities
Total Violations: 362
Significant Violations: 0
Total Penalties: $0
Despite no significant violations, Woodbury reported 362 total violations across monitored facilities in 2024. This results in a compliance grade of A, reflecting strong adherence to environmental standards compared to national benchmarks.
About the Data
This report uses the latest publicly available environmental data:
- Air Quality: Data sourced from the OpenAQ Platform, aggregating official air quality monitoring stations near Woodbury.
- Water Quality: Measurements from the Water Quality Portal, a collaboration between the USGS, EPA, and other agencies.
- Facility Compliance: Sourced from the EPA's ECHO Database, detailing facility violations, penalties, and compliance rates.
All data is refreshed regularly and reflects the latest available figures for 2024.