Laserfiche WebLink
Mr. Gene Riordan <br />RE: Brannan Sand and Gravel Pit 29 <br />February 19, 2015 <br />Page 2 of 2 <br />The water level in MW -4 is 0.80 ft. lower than the West Well. This is reasonable since the West <br />Well is upgradient of MW-4. The water level in the West Pond is 2.30 ft. higher than MW -4 and 1.5 <br />ft. higher than the West Well. <br />Similarly, the water level in the South Pond is 0.90 ft. higher than the East Well and the water level <br />in the East Pond is 1.05 ft. higher than the East Well. Even though the East Well is upgradient of the <br />East Pond its water level is lower. <br />In conclusion, the surface water levels are higher than the ground water levels. This demonstrates <br />that the surface water is not in contact with the ground water. In my opinion, the surface water seen <br />on the surface is not ground water. The remnant surface water is most likely due to very slow <br />infiltration through the clay soils. <br />Cordially, <br />Applegate Group, Inc. <br />Tom Hatton <br />Senior Project Manager <br />cc: Gene Riordan <br />Fred Marvel <br />AG File #10 -116 <br />Relative Elevation to <br />MW-4 <br />Relative Elevation to <br />East Well <br />Western <br />MW -4 <br />0.00 <br />West Pond <br />2.30 <br />West Well <br />0.80 <br />Eastern <br />East Well <br />1.80 <br />0.00 <br />South Pond <br />2.70 <br />0.90 <br />East Pond <br />2.85 <br />1.05 <br />The water level in MW -4 is 0.80 ft. lower than the West Well. This is reasonable since the West <br />Well is upgradient of MW-4. The water level in the West Pond is 2.30 ft. higher than MW -4 and 1.5 <br />ft. higher than the West Well. <br />Similarly, the water level in the South Pond is 0.90 ft. higher than the East Well and the water level <br />in the East Pond is 1.05 ft. higher than the East Well. Even though the East Well is upgradient of the <br />East Pond its water level is lower. <br />In conclusion, the surface water levels are higher than the ground water levels. This demonstrates <br />that the surface water is not in contact with the ground water. In my opinion, the surface water seen <br />on the surface is not ground water. The remnant surface water is most likely due to very slow <br />infiltration through the clay soils. <br />Cordially, <br />Applegate Group, Inc. <br />Tom Hatton <br />Senior Project Manager <br />cc: Gene Riordan <br />Fred Marvel <br />AG File #10 -116 <br />