2014-069 - Final Environmental Impact Report No. 2014-01

Home Browse Search

HARBOR BLVD. MIXED USE TRANSIT CORRIDOR PLAN FINAL FIR CITY OF SANTA ANA 5. Environmental Analysis HAZARDS AND HAZARDOUS MATERIALS 105255 of the California Health and Safety Code require that lead be contained during demolition activities. Compliance with SCAQMD's Rule 1403, OSHA Regulation 29 CFR Standard 1926.62, and Sections 17920.10 and 105255 of the California Health and Safety Code would ensure that no significant impacts related to existing ACM or LBP in the project area, if encountered, would occur. However, to further prevent impacts from the potential release of ACM or LBP associated with individual development projects under the Harbor Boulevard Mixed Use Transit Corridor, an ACM and LBP survey of existing buildings and structures would be required prior to demolition activities, as outlined in Mitigation Measure 6 -1. With adherence to existing regulations and implementation of this mitigation measure, no impacts related to ACM or LBP would occur. soils Grading and construction activities of the individual development projects that would be accommodated under the Harbor Boulevard Mixed Use Transit Corridor would involve the disturbance of onsite soils. Soils on certain sites of the project area could be contaminated with hazardous materials due to current and historical industrial and commercial land uses and agricultural chemicals from historical agricultural land uses. Exposure of contaminated soils to workers and the surrounding environment would result in a significant impact. Any contaminated soils encountered on individual development project sites would be required to be removed prior to grading activities and disposed of offsite in accordance with all applicable regulatory guidelines. However, to ensure that impacts from contaminated soils do not occur, Mitigation Measure 6 -2 has been provided at the end of this section. With adherence to existing regulations and implementation of this mitigation measure, impacts arising from the potential of encountering contaminated soils onsite during project grading activities would not occur. Impact 5.6 -2: Certain sites of the Harbor Boulevard Mixed Use Transit Corridor are included on a list of hazardous materials sites. [Threshold H -4] Impact Analysis: Individual development projects that would be accommodated under the Harbor Boulevard Mixed Use Transit Corridor would involve ground disturbance that could encounter existing hazardous materials in site soils from listed hazardous materials sites. There are several hundred hazardous materials sites listed within the project area. More specifically, there are 144 Haznet site (hazardous waste shipment manifest), and Table 5.6 -1, Environmental Database Listings ndthin the Project Area, lists 135 sites. Additionally, LUST and registered UST sites are usually listed on more than one database. For brevity, those listings are condensed in Tables 5.6 -1 and 5.6 -2 into a single UST database listing. There are 16 LUST listings and 21 UST listings within the project area. Fifty -three database listings document onsite hazardous materials releases into the environment: 16 LUST cases, 17 emissions inventory (EMI) toxic and criteria air pollutant emissions sites; 13 clandestine drug lab (CDL) sites; three California Hazardous Material Incident Reporting System (CHNIIRS) sites; three Emergency Response Notification System (ERNS) sites; and one Office of Pipeline Safety Incident and Accident Data (OPS case. October 2014 Page 5.6 -21