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| Area | Mainstem |
| Topic | Sediment: Road-Related Erosion Sources by Site in Mill Cr 1998-1999 |
Caption: The Chart Table sed_road_mill_mcrcdpwa_98_99_sites.db shows the number of sites and future sediment yield from three categories of road-related potential erosion sites in Mill Creek, based on data collected during phase 1 (1998) and phase 2 (1999) road surveys. This Chart Table does not include data on persistent surface erosion, because it is calculated by miles of road, not number of sites. Data were provided by the Mendocino County Resource Conservation District and Pacific Watershed Associates (1999 and 2002). See Info Links for more information. Column headings begin with a prefix indicating the data type, and end with a suffix indicating the time period in which data were collected. A key to column headings: Problem_Type = categories of problem types, Num_Sites_ = the number of sites in a problem category, Num_Sites_Treat_ = the number of sites in a problem category recommended for treatment, Num_Sites_NoTreat_ = the number of sites in a problem category not recommended for treatment, Future_Yield_ = Amount sediment predicted to be delivered to stream (calculated by multiplying total potential erosion by the probability of delivery to a stream), _Ph1 = Phase 1 surveys (1998), _Ph2 = Phase 2 surveys (1999).
50 rows of a possible 167 have been displayed.
| Problem_Type | Num_Sites_Ph1 | Num_Sites_Treat_Ph1 | Num_Sites_NoTreat_Ph1 | Future_Yield_Ph1 | Num_Sites_Ph2 | Num_Sites_Treat_Ph2 | Num_Sites_NoTreat_Ph2 | Future_Yield_Ph2 |
|---|---|---|---|---|---|---|---|---|
| Stream crossing | 75 | 75 | 0 | 28255 | 35 | 32 | 3 | 3112 |
| Landslide | 8 | 7 | 1 | 3908 | 1 | 1 | 0 | 13 |
| Other | 41 | 39 | 2 | 1021 | 10 | 9 | 1 | 1579 |
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