Total Maximum Daily Load Program

2002 CLEAN WATER ACT SECTION 303(d) LIST SUMMARY TABLES

2002 CLEAN WATER ACT SECTION 303(d) LIST SUMMARY TABLES

The 2002 Section 303(d) summary tables provided for viewing or downloading on this web page are divided into four categories:

1. Basic Summary Tables - These tables provide totals for listings statewide, by region, by water body type, and by Total Maximum Daily Load (TMDL) priority. There are two excel workbooks of basic summary tables:
   
   
1. "Total Water Bodies Listed"  provides totals based the number of water bodies listed. This focus disregards the number of pollutants listed for each water body. For example, if a water body is listed for PCBs, lead, and nutrients, a value of 1 would be included in the total listings column (i.e., Sandy Creek).
   
   
2. "Total Water Body-Pollutant Combinations Listed"  provides totals based on the total pollutants listed for each water body. For example, if a water body is listed for pathogens, mercury and sediment, a value of 3 would be included in the total listings column (i.e., counting Deer Creek-pathogens, Deer Creek-mercury, and Deer Creek-sediment).
   
   
2. Pollutant Category Summary Tables - these tables provide totals for listings for pollutant categories statewide, by region, and by water body type. There are three excel workbooks available for downloading:
   
   
1. "Pollutant Category Totals (Water Bodies Only)" - The totals in this table are derived from counting listed water bodies, not pollutant-water body combinations. For example, a water body listed for dieldrin, diazinon, and chlordane would be counted as one (1) in the pesticide category.
   
   
2. "Pollutant Category Totals (Waterbody-Pollutant Combinations)" - The totals shown in this table are derived from counting pollutant_water body combinations. For example, a water body listed for dieldrin, diazinon, and chlordane would be counted as three (3) in the pesticide category. (This table has been revised)
   
   
3. "Main Pollutant Category Summary Table" - This table combines the primary tables of the two pollutant category summary tables above.
   
   
3. Specific Pollutant Table - There is one excel workbook available for downloading.


1. "Specific Pollutant Totals" - This table provides the number of listings for each pollutant found on the list.
   
   
4. Source Category Summary Tables - These tables provide totals for listings for source categories statewide, by region, and by water body type. There are three excel workbooks available for downloading:
   
   
1. "Source Category Totals (Water Body-Based)" - The totals in this table are derived by counting source categories for listed water bodies, not water body-pollutant-combinations. For example, if a water body is listed for diazinon with an Agricultural source and also for nutrients with an Agricultural source, the total value in this table for the source category of Agriculture would be one (1).
   
   
2. "Source Category Totals (Water Body-Pollutant Based)" - The totals shown in this table are derived by counting sources (by category) per pollutant listed per water body on the 303(d) list. For example, if a water body is listed for diazinon with an Agricultural source and also for nutrients with an Agricultural source, the total value in this table for the source category of Agriculture would be two (2). The "2" represents the two Agricultural sources for the nutrient and diazinon listings for the one water body.
   
   
3. "Source Category Totals per Pollutant Category (Water Body-Polutant Based)" - The totals in this table are derived by first counting sources (by category) per pollutant listed per water body on the 303(d) list. These totals are then presented in the table using the more general pollutant categories of the individual pollutant listed. For example, if a water body is listed for the pesticide diazinon with an agricultural source and also for the pesticide chlorpyrifos with an agricultural source, the total value in this table for the source category of Agriculture-pollutant category of Pesticides would be two (2).

Please direct questions on these tables to Nancy Kapellas at (916) 341-5546.

(updated 2/25/04)