Future condition and concerns for the planning area portion of the watershed were gathered using a variety of data sources. All resources are referenced in Chapter 7 of this Master Plan. Supporting documentation on water quantity data listed below can be found in Appendix 2 and water quality in Appendix 3.

• This watershed is already developed so no change in development level and therefore in runoff is expected.
• Along White River, structures appear to be built on bluffs that are well above the 1% and 0.2% annual chance flood elevations. There are insufficient studies available to analyze impacts on the remaining small streams.
• Impact on roads/bridges - no change expected.
• This watershed is considered to be fully urbanized with no anticipated changes to the current land use. Based on available future land use data, imperviousness is estimated to remain at 80% which remains indicative (typically) of poor water quality.
• Based on future land use data being the same as the current land use, it is anticipated that water quality in some or all water bodies will likely continue to be impacted by elevated nutrient, bacteria, total suspended solids, and metals loads. Water quality samples collected at River Glen Pond and River Glen Drive as part of this Master Planning effort indicated that E.coli levels were already exceptionally high in 70% of the samples. Biological and physical assessments were not good and scored fair to poor.
• Current Stormwater Management Ordinance requires post- construction BMPs to remove 80% Total Suspended Solids (TSS) from stormwater runoff. It is assumed that other pollutants of concern will be captured to some extent with TSS. Elevated E.coli and Impaired Biotic Communities violations, as noted in 303(d) Impaired Streams List for the White River, are not addressed.