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UMAM) Analysis Summary for the Parcels 417 and 418 Project Site, Flagler County, Florida

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UMAM) Analysis Summary for the Parcels 417 and 418 Project Site, Flagler County, Florida Exhibit Uniform Mitigation Assessment Method (UMAM) Analysis Summary for the Parcels 417 and 418 Project Site, Flagler County, Florida. Functional Loss Functional Assessment Area Delta Acreage Loss Wetland Coniferous Forest (620) 0.29 Purchase Mitigation Bank Ratio Credit (2:1 ratio; -0.25 (0.5 credit purchased = 0.25 acres of impacts) Wetland Coniferous Forest (620) 0.60 0.04 0.02 Cypress (621) 0.667 3.78 2.52 Shrub Wetland (632) 0.43 0.13 0.06 Total Functional Loss 4.20 2.60 Relative Functional Gain Relative Adjusted Assessment Area Acreage Functional Delta Gain Pine Flatwoods (411) 0.175 6.43 1.13 Wetland Coniferous Forest (620) 0.015 25.35 0.38 Cypress (621) 0.02 64.02 1.28 Shrub Wetland (632) - 0.01 - Total Relative Functional Gain 95.81 2.79 C:\Users\DCC\Desktop\City\UMAM SUMMARY.doc PART I —Qualitative Description (See Section 62-345.400, F.A.C.) Site/Project Name Application Number Assessment Area Name or Number ICI Parcels 417 & 418 4-035-118010-1 Cypress Wetland FLUCCs code Further classification (optional) Impact or Mitigation Site? Assessment Area Size Cypress (621) Impact 3.78 acres Basin/Watershed Name/Number Affected Waterbody (Class) Special Classification (i.e. OFW, AP, other local/state/federal designation of importance) Halifax River Basin / Bulow Creek Class III N/A Watershed Geographic relationship to and hydrologic connection with wetlands, other surface water, uplands The Cypress wetland referred to on this form is located on the northeast portion of the project site. The Cypress wetlands are bordered by a gasoline station, disturbed shrub wetlands, and State Road (SR) 100 to the north; upland Pine Flatwoods and Interstate 95 (I-95) right-of-way (ROW) to the east; cypress wetlands and wetland coniferous forest to the south; and cypress wetlands to the west. Hydrology on the project site appears to begin in the north portion of the wetland system from a culvert under SR 100 where water flow appears to originate from the wetlands to the north and northeast. Hydrology has been affected by the wetlands being fragmented from transportation (SR 100 and I-95) that appears to cause some impoundment of water on the northeast of the site and more of a sheet flow in the central and southern portions of the project site. Water flows through the onsite wetlands to the south into a series of canal systems releasing into Graham Swamp and Bulow Creek. Assessment area description Cypress strand swamps (in optimal condition) are typically characterized by bald-cypress (Taxodium distichum) and situated in troughs in a flat limestone plain. These systems typically include a diversity of plant species such as red maple (Acer rubrum), laurel oak (Quercus laurifolia), cabbage palm (Sabal palmetto), sweetbay (Magnolia virginiana), red bay (Persea borbonia var. borbonia), strangler fig (Ficus aurea), common buttonbush (Cephalanthus occidentalis), leather fern (Acrostichum sp.), Jamaica swamp sawgrass (Cladium jamaicense), waterhyssop (Bacopa sp.), and dotted smartweed (Polygonum punctatum). Young trees at the outer edge grade into old trees in the interior, giving the cypress strands a distinctly rounded cross-sectional profile. At the time of the field investigation, the assessment area was characterized by a moderately-closed canopy of cypress, with scattered occurrences of blackgum (Nyssa sylvatica var. sylvatica), pond pine (Pinus serotina), slash pine (Pinus elliottii), and dahoon (Ilex cassine). The subcanopy consisted of regeneration of cypress (Taxodium sp.), dahoon, and blackgum scattered with fetterbush (Lyonia lucida), wax myrtle (Myrica cerifera), swamp bay (Persea palustris), and cabbage palm. The groundcover is comprised of cinnamon fern (Osmunda cinnamomea), Virginia chain fern (Woodwardia virginica), royal fern (Osmunda regalis), and netted chain fern (Woodwardia areolata). Significant nearby features Uniqueness (considering the relative rarity in relation to the regional landscape) No significant features nearby. This area contains no floral or faunal components considered to be rare or unique within Flagler County or in the central/north region of Florida. Functions Mitigation for previous permit/other historic use Optimal functions of the site included a wetland strand corridor providing No. natural water storage, filtration, and flow. Listed species such as the Florida black bear (Ursus americanus floridanus), white-tailed deer (Odocoileus virginianus), several wading birds, and birds of prey would optimally utilize this type of area for cover, refuge, foraging, nesting, and food chain support. Anticipated Wildlife Utilization Based on Literature Review (list of species that Anticipated Utilization by Listed Species (list species, their legal classification are representative of the assessment area and reasonably expected to be found) (E, T, SSC), type of use, and intensity of use of the assessment area) Wildlife anticipated for this assessment area typically includes eastern ribbon Low likelihood of occurrence for nesting and foraging of wading birds including snake (Thamnophis sauritus sauritus), cottonmouth (Agkistrodon piscivorus), little blue heron (Egretta caerulea), snowy egret (Egretta thula), white ibis Virginia opossum (Didelphis virginiana), eastern gray squirrel (Sciurus (Eudocimus albus), and tricolored heron (Egretta tricolor). Low likelihood of carolinensis), Florida black bear, raccoon (Procyon lotor), river otter (Lontra occurrence for cover and foraging of the Florida sandhill crane (Grus canadensis canadensis), and white-tailed deer. pratensis) and the southeastern American kestrel (Falco sparverius paulus). Low to moderate likelihood of occurrence for cover and foraging for the wood stork (Mycteria americana), eastern indigo snake (Drymarchon corais couperi), and Florida black bear. Observed Evidence of Wildlife Utilization (list species directly observed, or other signs such as tracks, droppings, casings, nests, etc.) Observed wildlife included slimy salamander (Plethodon glutinosus) and red-bellied woodpecker (Melanerpes carolinus). Wildlife recognized by call or sign included fish crow (Corvus ossifragus), pine warbler (Dendroica pinus), downy woodpecker (Picoides pubescens), and white-tailed deer. Additional relevant factors Wetland subject to roadside effects from past construction of I-95 and SR 100. Assessment conducted by Assessment date(s): Debra Rivera/ Tonda Logue April 3, 2013 P:\Admin\Projects\2007068\Reports\SJRWMD\ERP Modification\RAI and Response\Exhibt 3 UMAM Sheets\1- Impact Cypress.doc Form 62-345.900(1), F.A.C. [effective date 02-04-2004] PART II —Quantification of Assessment Area (impact or mitigation) (See Sections 62-345.500 and .600, F.A.C.) Site/Project Name Application Number Assessment Area Name or Number Parcels 417 and 418 4-035-118010-1 Cypress Wetland Impact or Mitigation Site? Assessment conducted by Assessment date Impact Debra Rivera/ Tonda Logue April 3, 2013 Scoring Guidance Optimal (10) Moderate (7) Minimal (4) Not Present (0) The scoring of each indicator is Condition is optimal and Condition is less than optimal, Minimal level of support of Condition is insufficient to based on what would be suitable fully supports but sufficient to maintain most wetland/surface water provide wetland/surface water for the type of wetland or surface wetland/surface water wetland/surface water functions functions functions water assessed functions .500(6)(a) Location and Undisturbed habitats outside the assessment area are limited to the cypress and coniferous mixed wetlands to the south and west. Landscape Support The assessment area is adjoined by transportation to the north and east, and by a retail gasoline station to the northwest. Wildlife access is limited due to the narrowed habitat corridor and surrounding urban development. Opportunity for the w/o pres or assessment area to provide benefits downstream is very limited based on the downstream habitats consisting of primarily current with dredged canal systems. 5 0 .500(6)(b) Water Environment Water levels and flow appeared relatively high and at an elevated rate compared to what would be typical for this type of system. (n/a for uplands) The series of culverts at the north of the system and to the south of the system appeared to have greatly influenced the water levels and flow onsite. w/o pres or current with 7 0 .500(6)(c) Community Structure The majority of plant cover was appropriate throughout the system except for the portions along the roads which had occurrences of nuisance/exotic species. Some generation of cypress was observed; however, the age and size distribution is 1. Vegetation and/or atypical of the system. Plant health appeared generally good. The proposed development plan will incorporate a large retention pond that will provide habitat for cover and foraging for water and wetland dependent species. 2. Benthic Community w/o pres or current with 8 0 Score = sum of above scores/30 If preservation as mitigation For impact assessment areas (If uplands, divide by 20) Preservation adjustment factor = Functional Loss = delta x acres w/o pres or Adjusted mitigation delta = FL = -0.667 x 3.78 acres = -2.52 current with 0.667 0 Delta = (with-current) If mitigation For mitigation assessment areas -0.667 Time lag (t-factor) = Relative Functional Gain = delta/(t-factor x risk) Risk factor = P:\Admin\Projects\2007068\Reports\SJRWMD\ERP Modification\RAI and Response\Exhibt 3 UMAM Sheets\1- Impact Cypress.doc Form 62-345.900(1), F.A.C. [effective date 02-04-2004] PART I —Qualitative Description (See Section
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