25F - AGMT HAZARDOUS MATERIALS SURVEYS

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® KMEA SCOPE OF SERVICES AND SCHEDULE This section Includes a Scope of Services and Schedule which details the work phases to be completed, the tasks to be accomplished, the deliverables to be provided, and the schedule/timeline to complete the project, based on the requested Scope of Work detailed in Attachment 1 of the RFP. KMEA reviewed readily accessible information about the two project sample locations referenced in the RFP. These locations Include: • 2246 Orange Avenue (NM/ corner of Warner and Orange) • 2245 S. Main Street (Arco Gas Station) 2246 Orange Avenue (N/W corner of Warner and Orange/ This Is a single -story residential dwelling, located at the referenced address In Santa Ana, California. Available records indicate that the year of construction dates back to the 1950s. The dwelling comprises 921 square feet with two bedrooms and one bath with a detached garage. No records of renovation activity were available, Assuming that the dwelling and the property have not been renovated since the original date of construction, KMEA recommends the following scope of services for this location: Scope of Phase I and/or II ESAs (A11: Phase I ESA: KMEA will follow the project approach and scope of work as described In Section D of this proposal to conduct a Phase I ESA for this location. This evaluation will be performed in general accordance with the ASTM Standard El 527 and the U.S. EPA AN as outlined in the Section D. Phase II ESA: Scope of services for Phase II ESA or remedial activities are not anticipated or recommended for this site until after the results of the Phase I ESA and hazardous materials surveys are available, Scope of Hazardous Materials Surveys — Pre -demolition Surveys (A2): During the Phase I ESA, KMEA will observe for evidence of building materials suspected of containing asbestos and lead in paint and document the findings. Pending results of these observations, KMEA will design a hazardous materials survey (pre-demolltlon survey) to confirm the presence vs, absence of LBP or ACM at the property. The survey will follow the general approach as outlined in Section D of this proposal. For the purposes of this proposal and cost estimate, a total of 36 suspect ACM bulk samples and 24 paint chip samples are anticipated as part of this pre -demolition survey. The samples will be properly labelled and shipped to AmeriSci, an accredited and certified local laboratory for asbestos and lead analysis. The analytical methods and reporting of the survey results will be In general accordance with the approach outlined in Section D. KMEA can complete a Phase I ESA including the report in three weeks depending on the availability of knowledgeable site contacts to interview and site access. Accelerated turnaround is available upon request by the City at additional cost. The hazardous materials survey for this location can be conducted [none day followed bythe notice toproceed. Standard turnaround time for laboratory analyses is between 7 to 10 days from the date of submittal of the samples to the laboratory. KMEA will prepare the summary report in one week or less following receipt of the laboratory results. The laboratory analyses and report preparation timelines may be accelerated at the City's discretion at additional casts. 2245 S. Main Street (Arco Gasoline Station/ Our review or the site history and current site conditions indicate that this Is a former Arco gasoline station (Facility No. 5147) now conducting business under Tesoro brand name (Tesoro Service Station 4258). Our further review of the site history revealed that a regulatory case file was opened in 1988 due to an unauthorized release of fuel hydrocarbons at the Arco facility. The facility underwent site assessment until 1999 at which point remedial activities began to mitigate the impacts to soil and groundwater, The remediation work consisted of in-situ physical/chemical treatment utilizing a high -vacuum dual phase extraction system. The remedial activities continued through 2008 followed by clean up confirmation and verification monitoring until 2014 at which point the site became eligible for case closure under the Califomia State Low Threat Closure Policy. KMEA's recent discussions with the Regional Water Quality Control Board (RWQCB) case manager Indicate that the agency does not anticipate a need for any additional City of Santa Ana Page 18 June 5, 2018 Various Environmental Services RFP NO.: 18-043 25F-107