Transcription of pubs.usgs.gov
1 DEPARTMENT OF THE INTERIOR GEOLOGICAL SURVEY FEET 100 SEA LEVEL -100 39" -200 ~ -300 -400 -500 -600 -700 -800 -900 -1000 -1100 - 1200 -1300 -1400 - 1500 -1600 -1700 -1800 -1900 78' + J 52A1 53A3 SP ER H-----h EXPLANATION LINE OF SECTION o58A2 WELL AND NUMBER SP INDICATES SPONTANEOUS POTENTIAL LOG ER INDICATES SINGLE-POINT 77' ELECTRIC RESISTIVITY LOG NOTE: Hydrogeologic unit llne dashed where approximate 0 40 MILES 1---.,---"-~--,L-~~___J 10 20 30 0 10 20 30 40 KILOMETERS LOCATION MAP 54A3 Columbia aquifer Yorktown SP ER 76' J SP ER FEET 100 SEA LEVEL -100 -200 -300 -400 -500 -600 -700 -800 -900 -1000 - 1100 -1200 -1300 - 1400 -1500 -1600 H SP ER 55863 ER -------------SP ~ "'.
2 \! ~ 55C12 5505 -t; Recent river @ channel sediments Columbia aquifer York:town confining unit aquifer Yorktown-Eastover Calvert Chickahominy-Pinev Point aquifer Nanjemoy-Marlboro "" Upper Potomac Upper Potomac Middle Potomac confining unit clay confining unit aquifer aquifer confining unit SP ER Middle Potomac aquifer Lower Potomac aquifer ER ------H' continin unit ER Basamenr-----------------------------~-- -----ER FEET ~ 100 SEA LEVEL 100 -200 -300 -400 -500 -600 -700 -800 -900 - 1000 -1100 -1200 -1300 -1400 -1500 -1600 -1700 _j_ _____ __
3 ---------------------------------------- ---------------------------------------- ------------------------j_-1700 WELL 55Al, SOUTHAMPTON COUNTY, TO WELL 55F20, SURRY COUNTY ,]1 5689 5681 5786 588115 59C28 60C25 6105 Yorktown-Eastover aquifer St. Marys confining unit confining unit SP ER SP ER FEET 1100 SEA LEVEL -100 -200 -300 -400 -5 00 -600 -700 -800 -900 1000 -1100 -1200 -1300 -1400 -1500 -1600 - 1700 -1800 FEET 100 SEA LEVEL -100 -200 -300 -400 -500 -600 -700 -800 -900 -1000 -1100 -1200 -1300 -1400 -1500 -1600 -1700 -1800 K 58A2 FEET 100 SEA LEVEL.
4 100 -200 -300 -400 -500 -600 -700 -800--900 -1000 -1100 -1200 -1300 -1400 -1500 - 1600 -1700 -1800 -1900 -20001 .Basement _ 1900 __L __ _c=S"-P LJ---"EccR'--". _____ _ WELL 52Al, SOUTHAMPTON COUNTY, TO WELL 6105, VIRGINIA BEACH 5 L 5 0 ' 0 5 10 MILES 5 10 KILOMETERS HYDROGEOLOGIC SECTIONS H-H', 1-1', J-J', K-K' VIRGINIA COASTAL PLAIN PROFESSIONAL PAPER 1404-C PLATE 4 [/ FEET 100 58A2 588115 58C51 58GB 5809 SP Columbia aquifer Yorktown YorktOWf'I-Eastover ~/'.. cOnfining > unit \ ( aquife< > ( St. Marys confining unit"" ~~~----------------------~C=a~lv~e~''~-- ~---~-==~(~c~o~nf;,in~in~g--j-i-_J~~_:un =i~t~Lll-------------~~~ ( Chickahominy-Piney Point ~ _ "?))))]
5 Aquifer ~ \ > Nanjemoy Mailbmo ? clay confining .g! ( I ~ aquifer Upper Potomac '5 , ~l:::::!:==================~M~i@d~d~le~P ~o~t o~m~a~c=rr=r===~;=========~~~'~'"~o~n~ . -L: ~ n'!!!] ,'\-L~ unit ~ -------------) SP ER SP ) ~ (1? Potomac aquifer Middle SP ER SP ER W1---------------;L o-~w~e:.1~p;~o:t~o~m~a~c=- ------~nfining _____ _ !I --------------------t;ni;"-----Ll----i-1 ----------------------\ -----------Lower Potomac' aquifer ER SEA LEVEL 100 -200 -300 -400 -500 -600 -700 -800 -900 -1000 -1100 --1200 -1300 -1400 -1500 ~ -16CO -1700 -1800 -1900 ---1------------------------------------ --------------------------- -------------_i_-2000 WELL 58A2, SUFFOLK, TO WELL 5809, ISLE OF WIGHT COUNTY 6081 Columbia aquifer Yorktown confining unit Yorktown-Eastover aquifer St.
6 IV!a,, ,s conr . lntng Unit Lower p Otornac . aqurfer K' 6182 62C5 ----ER ----FEET ~100 SEA LEVEL -100 -200 -300 -400 -500 -600 ~ -700 -800 -900 -1000 - 1100 -1200 -1300 -1400 -1500 -16CO -1700 -1800 ---------------------------------------- --------------------L-1900 WELL 58A2, SUFFOLK, TO WELL 62C5, VIRGINIA BEACH I
