SU0004916 - Laserfiche WebLink

Home Browse Search

The proposed project includes various off-site infrastructure improvements,including drainage,water,and wastewater pipeline extensions;water pumps;Grant Line Road and Mountain House Parkway widening;Grant Line Road/I-205 interchange improvements;Water Quality Basin No. 1 expansion;and a 30-acre treated wastewater storage pond on the Pombo property(see Figures 3-12 through 3-15 in Chapter 3,"Project Description"). Special-status plants and suitable habitat for California red-legged frogs exist within Mountain House Creek. The proposed widening of the Grant Line Road bridge over the creek could result in potential loss of special-status plants, and could adversely affect the frogs,if construction activity were to occur within the bed or banks of the creek. Suitable nesting habitat for Swainson's hawk,burrowing owl,other nesting raptors, loggerhead shrike, and California homed lark is present on and adjacent to the off-site infrastructure areas(i.e.,off-site pipeline routes north of College Park,Grant Line Road,Mountain House Parkway, Grant Line Road/I-205 interchange,Water Quality Basin No. 1,Pombo property). Construction of these off-site infrastructure improvements at these locations could result in direct destruction of active nests or disturbance of nesting pairs,potentially resulting in nest abandonment and loss of eggs or young. Widening of Grant Line Road could result in temporary impacts to and/or loss of jurisdictional waters of the United States. Implementation of the biological resources requirements of the MHMP,MHMP EIR,MHMP MMP,Delta College EIR,and SJMSCP at the off-site infrastructure improvement locations would minimise impacts to the species mentioned above,and in some cases reduce these impacts to a less-than-significant level(i.e., Swainson's hawk). However,implementation of the requirements of the above would not reduce all biological resources impacts associated with development of the proposed off-site facilities to less-than-significant levels(see previous impacts for discussion). Furthermore,the above requirements do not apply to those off-site improvement sites located in Alameda County(Grant Line Road widening and Grant Line Road/I-205 interchange improvements). Therefore, a potentially significant impact could occur. Mitigation Measure 4.10-12: Biological Resources--Possible Effects on Biological Resources from Implementation of Off-Site Infrastructure Improvements San Joaquin County For those off-site improvements proposed in San Joaquin County,the College Park developers shall implement Mitigation Measures 4.10-5,4.10-6,4.10-7,4.10-9, and 4.10-10. Alameda County For those off-site improvements proposed in Alameda County,the College Park developers shall implement the measures identified below: Special-Status Plants • Before any ground-disturbing or vegetation-clearing activities, a qualified botanist shall conduct surveys for the special-status plant species identified in Table 4.11-1. Surveys shall be conducted at the appropriate time,when the target species would be in flower and therefore clearly identifiable(i.e., blooming period) and in all areas of suitable habitat that would potentially be disturbed. If no special- status plants are found,no further mitigation shall be required. If special-status plants are found and the populations can be avoided during project T implementation,they shall be clearly marked in the field by a qualified botanist for avoidance during construction activities College Park at Mountain House Specific Plan III Draft EIR EDAW San Joaquin County 4.10-43 Biological Resources