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4. Installation of shrubbery in the park area. Alternate 4 Cost - $64,126 This item was included in the event the City wished to withhold the plantings until such time as drought conditions improve. Staffs assessment is that this material will not require significant water and as such it is recommending approval. For the Oak Woodland area, the alternates include: The park base bid includes the cost of planting the Oak Woodland's trees and construction of the storm water facilities to be included in this area for water runoff from the park area. Since the Oak Woodland will be initially hand watered with recycled water until the material can survive in the natural environment, this area does not include any irrigation. As such, even if the City Council decides to eliminate the following three alternatives, the Oak Woodland area would still be planted with trees and there would be an expectation that these other improvements would be added at a later date. The alternates are as follows: 5. Installation of pathway lighting to allow for access from the Oak Vista neighborhood to the park area. Alternate 5 Cost - $190,000 6. Site construction including pathways, storm water infrastructure overlook areas, retaining walls, etc. Alternate 6 Cost - $899,116 7. Site amenities including benches, rock/bolder features, fencing, trash receptacles, benches, drinking fountain, etc. Alternate 7 Cost— $293,975 As indicated previously, staff is recommending that the Council approve the construction agreement with the inclusion of the three alternates thus creating the Oak Woodland area. All-Weather Fields All-weather turf fields generally consist of a base system, including base rock and drainage, the turf material and an infill material that is spread out on top of the turf. Some systems replace a portion of the base rock with a shock pad that is installed to improve field cushioning. For many years, the infill material has been primarily comprised of a combination of silica sand and crumb rubber (SBR). Silca sand is manufactured from crushed rock and helps firm up the infill. SBR is manufactured by grinding recycled tires, is used primarily to form an impact absorbing and stable base for players. The SBR also keep the artificial grass blades upright which creates a "natural" looking grass. While one could use either silica or SBR exclusively, they are most often combined to create a stable and very playable field surface. Page 5 of 9