COMPLIANCE INFO_2020 - Laserfiche WebLink

Home Browse Search

6.3.3 Radon Radon is a colorless, odorless, naturally occurring, radioactive, inert, gaseous element formed by radioactive decay of radium (Ra) atoms. The US EPA has prepared a map to assist National, State, and local organizations to target their resources and to implement radon-resistant building codes. The map divides the country into three Radon Zones, according to the table below: EPA Radon Zones EPA Zones Average Predicted Radon Levels Potential Zone 1 Exceed 4.0 pCi/L Highest Zone 2 Between 2.0 and 4.0 pCi/L Moderate Zone 3 Less than 2.0 pCi/L Low It is important to note that the EPA has found homes with elevated levels of radon in all three zones, and the US EPA recommends site-specific testing in order to determine radon levels at a specific location. However, the map does give a valuable indication of the propensity of radon gas accumulation in structures. Radon sampling was not conducted as part of this assessment. Review of the US EPA Map of Radon Zones places the subject property in Zone 3. Based upon the radon zone classification, radon is not considered to be a significant environmental concern. 6.3.4 Lead in Drinking Water According to available information, a public water system operated by the Cal Water the subject property vicinity. According to Cal Water's 2015 Water Quality Report, shallow groundwater beneath the subject property is not utilized for domestic purposes. The source of public water for Cal Water is groundwater obtained from 27 deep wells located in the Stockton area. According to the referenced water quality report, water supplied to the subject property is in compliance with all State and Federal regulations pertaining to drinking water standards, including lead and copper. Water sampling was not conducted to verify water quality. 6.3.5 Mold Molds are microscopic organisms found virtually everywhere, indoors and outdoors. Mold will grow and multiply under the right conditions, needing only sufficient moisture (e.g.in the form of very high humidity, condensation, or water from a leaking pipe, etc.) and organic material (e.g., ceiling tile, drywall, paper, or natural fiber carpet padding). Partner observed accessible, interior areas for the subject property building for significant evidence of mold growth with the exceptions detailed in Section 1.5 of this report; however, this ESA should not be used as a mold survey or inspection. Additionally, this limited assessment was not designed to assess all areas of potential mold growth that may be affected by mold growth on the subject property. Rather, it is intended to give the client an indication as to whether or not conspicuous (based on observed areas) mold growth is present at the subject property. This evaluation did not include a review of pipe chases, mechanical systems, or areas behind enclosed walls and ceilings. Phase I Environmental Site Assessment PARTNER Project No. 17-184702.1 May 10,2017 Page 31