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Napa Environment Facts

Air Quality, Water Quality, Climate and more


Napa
Air Quality
Napa County
. Good Days Moderate Days Unhealthy for Sensitive Persons Days Unhealthy Days Very Unhealthy Days
2017 229 121 7 5 2
2016 296 70 0 0 0
2015 237 127 1 0 0
2014 215 150 0 0 0
2013 220 143 2 0 0




Napa
Water Quality
San Pablo Bay Watershed
. % Good % Threatened % Impaired
2014 na na na
2012 0 0 100
2010 na na na
2008 na na na
2006 na na na
2004 5 16 79
2002 9 25 66




Napa
Recreation
. # of Parks # of Parks
(99 City Avg)
National Parks, Historic Sites, etc.
(managed by National Park Service)
John Muir National Historic Site, Point Reyes National Seashore plus 11 more 7
National Campgrounds, Lodges, etc.
(other federal agency-managed sites)
13 26
State Parks, Sites, etc. 18 11



Napa Climate
(1971-2000)
. . 99 City Avg
January - Avg Low Temp 39 F 27 F
January - Avg Daily Temp 48 F 37 F
July - Avg Daily Temp 69 F 74 F
July - Avg High Temp 83 F 86 F
Avg Annual Precipitation 27 in 35 in



Napa Elevation
35 feet GPTR 99 City Average
1,652 feet



Napa
Natural Hazards
. Risk Level 99 City Average
Total Hazard Risk Higher Moderate
Earthquake 90% 10.9%
Tsunami No Risk No Risk
Hurricane 0 10
Flood Very High Very High
Tornado Very Low Low
Volcano Low Ash Fall No Risk
Wildfire High Low



Napa
Man-Made Hazards (Nuclear)
Nuclear Power Stations
(# Reactors)
Distance from City GPTR 99 City
Average
Diablo Canyon (2) 220 miles 50% of cities are within 100 miles of at least one nuclear station



Napa
Heating and Cooling Degree Days
(avg annual)
. . 99 City Avg
Total Degree Days 3,218 5,915
HDD 2,689 4,662
CDD 529 1,253



EPA Hazardous Material Cleanup Sites
(Napa Area)
Napa Area EPA Cleanup Sites


Legend:
Small green circles (older style maps) or multi-colored circles (newer style maps: click here for legend) indicate 1)Superfund Sites 2)Federal Facilities 3)RCRA Corrective Action Sites and 4)Brownfields Properties (EPA hazardous material cleanup sites defined at Environment link)

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