How fast are waters becoming listed vs. delisted, statewide & regionally?
speaks to the amount of time & resources needed to attain water quality standards (WQS) in TMDL or alternative plan; the rate at which waters are becoming impaired necessitates more resources being put towards addressing impairment than preventing impairment through protection
Which pollutants or pollutant groups are listed vs. delisted most frequently, statewide & regionally?
This could help focus efforts to areas where they would be more
Would need to account for new pollutants added to 303d list over
To really get to this, we would need to track wbid/pollutant combinations through time use that time period as the unit of measurement
List or map of Category 1 waters that are directly connected to 303(d) impaired waters
Would be nice to know whether up or downstream
~~1. Time series (yearly): statewide listed waterbody-pollutant combinations (wbc), statewide newly listed wbc, statewide newly delisted wbc.
Use geom_line for statewide listed, geom_ribbon for newly listed & delisted
no. 1 above, but use cumulative sums of newly listed & delisted
no. 1 above but breakdown by region using facet_grid~~
Questions with focus on protection:
~~1. Time series (yearly): statewide listed waterbody-pollutant combinations (wbc), statewide newly listed wbc, statewide newly delisted wbc.