Laserfiche WebLink
Surface and Subsurface Contamination Report <br />Sandhu Property ■ Mountain House, California <br />August 12, 2021 ■ Terracon Project No. NA217037 <br />Irerracan <br />Historical fire insurance maps were requested from ERIS to evaluate past uses and relevant <br />characteristics of the site and surrounding properties. Based upon inquiries to the above -listed <br />Sanborn provider, Sanborn maps were not available for the site. <br />■ Topooraphic maps <br />Tesla, California, published in 1907 and 1943 (1:62,500) <br />Midway, California, published in 1916, 1953, 1968, 1980, 2015 (1:24,000) <br />Altamont, California, published in 1942 (1:62,500) <br />■ Aerial Photographs: <br />ASCS, 1937, 1940, 1957, 1963 (1":500') <br />USGS, 1949, 1974, 1993 (1":500') <br />NHAP, 1982 (1":500') <br />NAIP, 2005, 2006, 2009, 2010, 2012, 2014, 2016, 2018, 2020 (1":500') <br />Historical Topographic Maps and Aerial Photographs <br />Direction <br />Description <br />Mostly undeveloped land with a residence on the northeastern portion, unpaved roads <br />through the eastern portion, and an intermittent stream through the central portion (1907- <br />1916); land utilized for apparent row crops and an additional intermittent stream through <br />the northeastern portion (1937-1943); residence removed, intermittent stream through <br />central portion no longer visible, land utilized for apparent row crops with apparent <br />irrigation canals, unpaved roads throughout the site(1949); installation of a pioeline <br />Site <br />transecting the northeastern corner (1953-1963); power transmission line transecting the <br />western portion (1968-1980); continued use of land with row crops with apparent irrigation <br />canals and unpaved roads with intermittent stream through the northeastern portion <br />(1982-2006); land no longer utilized for row crops, developed with existing storm water <br />basin along the southern boundary and intermittent stream through the northeastern <br />portion (2009-2014); apparent burned area on eastern portion (2016-2018); existing layout <br />with mostly vacant land with existing storm water basin along the southern boundary and <br />developed with a portion of Central Parkway on the northeastern portion (2020). <br />Mostly undeveloped land with an unpaved road through the eastern portion, and an <br />intermittent stream through the central portion (1907-1916); intermittent stream through <br />central portion no longer visible, land utilized for apparent row crops with intermittent <br />North <br />stream on the eastern portion (1937-1943); apparent installation of a pipeline through the <br />eastern portion (1949-2006); vacant land with intermittent stream through eastern portion <br />(2009-2014); apparent burned area on eastern portion (2016-2018); developed with <br />existing Central Parkway and Zinnia Way with associated residential roads (2020). <br />Undeveloped land (1907-1916); row crops with intermittent stream on the northern portion <br />(1937-1943); apparent installation of pipeline through the central portion (1949-1993); <br />East <br />vacant land with intermittent stream through the northern portion and apparent activity on <br />southern portion (2005-2006); activity on southern portion no longer apparent (2009- <br />2020). <br />South <br />Undeveloped land with intermittent stream through the central portion (1907-1949); <br />developed with existing highway (1953-2020). <br />West <br />Undeveloped land (1907-2020). <br />Responsive ■ Resourceful ■ Reliable 3 <br />