Data was sourced from LA County's Natural History Museum (NHM).
Data on current ongoing programs were reported for January 1st, 2018 – November 15th, 2018.
Data on specific challenge projects were reported for all years they occurred (2016, 2017, 2018), but each project has a different timescale. The El Nino SnailBlitz was 3 months, but all other SnailBlitzes and RASCalsBlitz were only 2 months long. The City Nature Challenge was the shortest project lasting only 3-5 days.

Data was sourced from LA County's Natural History Museum (NHM).
Data on current ongoing programs were reported for January 1st, 2018 – November 15th, 2018.
Data on specific challenge projects were reported for all years they occurred (2016, 2017, 2018), but each project has a different timescale. The El Nino SnailBlitz was 3 months, but all other SnailBlitzes and RASCalsBlitz were only 2 months long. The City Nature Challenge was the shortest project lasting only 3-5 days.

Data was sourced from LA County's Natural History Museum (NHM). Data on current ongoing programs were reported for January 1st, 2018 – November 15th, 2018. Data on specific challenge projects were reported for all years they occurred (2016, 2017, 2018), but each project has a different timescale. The El Nino SnailBlitz was 3 months, but all other SnailBlitzes and RASCalsBlitz were only 2 months long. The City Nature Challenge was the shortest project lasting only 3-5 days.

California Rapid Assessment Method (CRAM) is an assessment method for monitoring the condition of wetlands. Spatial data was derived from EcoAtlas and sorted to only include sites within LA County. Sites are sorted by watershed and by land use and presented as a percentage of sites per score.

Total 2017 retail sales for each utility operating in LA County disaggregated based on values reported in Power Content Label.
Historical LA County renewable energy as share of total retail sales calculated by aggregating annual retail sales by generation for all utilities operating within LA County for 2010-2017.
In-county Southern California Edison retail sales based on difference between reported retail sales for LA County and the sum of retail sales for utilities operating in LA County, excluding Southern California Edison.

California Rapid Assessment Method (CRAM; an assessment method for monitoring the condition of wetlands) spatial data was sorted from the EcoAtlas and combined with shapefile data from LA County to depict the CRAM scores was created for each point.
CRAM data was sorted to only include sites within LA County. These sites were then sorted by watershed and by land use and presented as a percentage of sites per score.

PEV and HEV Registrations (provided by NREL/SCAG already aggregated by city): Data exclusively refers to 88 unincorporated areas.

Commute Mode Share: The U.S. Census American Community Survey (ACS) 1yr Table B08134 for the years 2005 to 2017 was used to calculate the mode share for commute trips for these years. The ACS gives total number for the following categories: drove alone, carpooled, public transit, walk, and other. These numbers were divided by the total number of survey respondents to calculate the percent of commuters utilizing each of these modes of transportation and presented the information graphically and in tabular form.
Average Commute Time: Data from the U.S. Census American Community Survey 1yr Table S0802 for the years 2005 to 2017 was used for average commute time and presented this data for those years in a table with the commute mode share.

Detailed location data (address and coordinates) sourced from reports from the California Integrated Water Quality System (CIWQS) sanitary sewer overflow (SSO) database and were generated using the Interactive SSO Reports tool from the State Water Resources Control Board (SWRCB) Sanitary Sewer Overflow Reduction Program. Data on Category 1, 2 and 3 SSOs in LA County for the years 2013 to 2017 was used.

Summary data sourced from reports from the California Integrated Water Quality System (CIWQS) sanitary sewer overflow (SSO) database and were generated using the Interactive SSO Reports tool from the State Water Resources Control Board (SWRCB) Sanitary Sewer Overflow Reduction Program. Data on Category 1, 2 and 3 SSOs in LA County for the years 2013 to 2017 was used. The number and volume of spills was analyzed. For some spills, only a portion of the spill volume may have reached a waterbody. Spills were categorized as small (<1,000 gallons), minor (between 1,000 and 10,000 gallons), or major (>10,000 gallons).

See "Number and Volume of Sewage Spills to Water (2013-2017) Detailed" for more detailed data.