Barclay Ridge Section III - Hydrostudy - Plats

PLATE 2 PROPOSED SITEPLANfor the BARCLA YRIDGE SECTIONIIIA -3 SUBDIVISION, LOUDOZIN COUNTY, VIRGINIA [—A] Site Layout and Proposed Test Well Locations / J'1Tr / / / J K r/ I / / I r r I 1 I C 1 i I 1 I 1 1 1 op 1 I I I \ I I / 1 I I I I 1 I 1 I I I f I I I I I I I I I I I I I \ I Jl ` I Jl 1 I 1 I 1 I I 1 I / / / / I I I I I 11 II 1 I I i I 1 I / I I I r i 1 l N GAR -30 r 1 sII V Ei� J \ f '� I I F 1 7 20 GAR -18 O Scale Is I "= 200' 1.2400 . .. .. — 00' . Ica add 2 1 _ 1 0' :. �� - ii /��_ : - r I U l ;/ . . .... ..... ... /.,/. /�.7. /.J.. ./\ /�y� �tioriz . sggfa: i - �¢r1 . ). ( / \ _ ... _ �y /�\. �. '/ .. /7 / i I9 `feet above sea level) 9F�, .��.. ... f`. /ifA;a4ea )evel}l0... ,� I 1 t -- i i�i i I - iif Proposed Road I - . f , f, ropo Emery & Garrett Groundwater, Inc. 56Mam Street, Meredith, NH 03253 6. GN TN' NN v zo' Contour Interval = 5' Polyconic Projection, 1927 North American Datum. lot lines, drainfields, topography and streams from Williamsburg U1,k1 Environmental Group, Inc. file zone 1S acquired 8/28/00. BAR CLAYRIDGESECTIONIIIA -3 SUBDIVISION DETAILED HYDRO- STUDYINVESTIGATION SITEPLAN, CROSS- SECTIONand Legend for Bedrock Geology Job Number: VA0600967- -J Date: February, 2001 PLATE2 (after Weems. unpublished USGS map; Lee and Froelich, 1989) Turkey Run Predominantly sandstone, dark —red to medium— grayish — green, feldspathic, micaceous, ripple— laminated and crossbedded, thin — bedded to massive, very fine 7 Jtr Formation to coarse— grained; siltstone and shale, dusky —red to greenish —gray, carbonuceaus in places, micromicaceous, continuous lowland between low linear ridges of Hickory Grove and Sander Basalt; in places consists of alternating 5— to 10 —m thick, upward— fining and upword — coarsening cycles of sandstone, siltstone, and shale. Unit averages 300 m in thickness. Hickory Grove Medium— to dark —gray, very fine to very coarse crystalline; mostly equiangular and holocrystalline but locally vesicular; euhedral or subhedrol crystals of Jhg Basalt plagioclase occur in a groundmass of subhedral to euhedral ougite with scattered grains of magnetite and ilmenite. Vesicles present mainly in the upper part of the sequence. Well — developed columnar joints in some areas. Forms low linear strike ridges in west — central Culpeper basin, estimated to be as much as 212 m thick. Midland Predominantly sandstone, dark —red to reddish — brown, fine —to medium — grained, 7 ✓ Im micaceous, feldspathic, in places crossbedded and ripple — laminated; in places Formation associated with lenticular conglomerate and pebbly sandstone is interbedded with siltstone, dark —red to dusky —red and greenish —gray, micromicaceous, ripple — laminated; and silty shale, dark —red, greenish —gray, dark —gray, calcareous, microlaminated, fossiliferous, and thin — bedded, gray, argillaceaus limestone. Unit generally poorly exposed, forming a lowland between low discontinuous strike ridges of Hickory Grove and Mount Zion Church basalts. Unit is as much as 300 m thick, but overages 150 m Mount Zion Church Medium —gray and dark —gray; very fine to medium — crystalline; porphyritic, Jmz vesicular, and amygdaloidal in part mostly equiangular and holocrystalline; S Basalt ougite and plagioclase display ophitic or subophitic texture. Vesicles are scattered, but mostly concentrated in the upper part of the sequence. Well developed columnar joints are common. Locally contains irregular lenses of grayish —red to dark —red siltstone and sandstone. Exposed only as isolated, narrow linear outcrops in Prince William and Fauquier Counties, VA. Estimated to be as much as 140 m thick. J7'rG. ar In Cath Creek P Sandstone, very dark red to dusky —red, micaceous, feldspathic, pebbly; indurated in places; overlain by siltstone, dusky —red, sandy, micromicaceous, interbedded Formation with minor amounts of red —brown to olive —gray, thin — bedded to laminated, silty Goose Creek Member Conglomerate shale. Conglomerate. containing many cobbles and pebbles of quartzite, vein quartz, and minor limestone in acoarse— grained, reddish — brown, reddish —bra grkosic , sandstone arkosic sandstone matrix. Paleo Lake Bed Shorelines . .. .. — 00' . Ica add 2 1 _ 1 0' :. �� - ii /��_ : - r I U l ;/ . . .... ..... ... /.,/. /�.7. /.J.. ./\ /�y� �tioriz . sggfa: i - �¢r1 . ). ( / \ _ ... _ �y /�\. �. '/ .. /7 / i I9 `feet above sea level) 9F�, .��.. ... f`. /ifA;a4ea )evel}l0... ,� I 1 t -- i i�i i I - iif Proposed Road I - . f , f, ropo Emery & Garrett Groundwater, Inc. 56Mam Street, Meredith, NH 03253 6. GN TN' NN v zo' Contour Interval = 5' Polyconic Projection, 1927 North American Datum. lot lines, drainfields, topography and streams from Williamsburg U1,k1 Environmental Group, Inc. file zone 1S acquired 8/28/00. BAR CLAYRIDGESECTIONIIIA -3 SUBDIVISION DETAILED HYDRO- STUDYINVESTIGATION SITEPLAN, CROSS- SECTIONand PROPOSED TEST WELL LOCATIONS Job Number: VA0600967- -J Date: February, 2001 PLATE2 file: V.\va \Garcia \nna1H— A3\Workfng \CAD \GAR— A3.dwg; sheet: Plate2 A -3 Emery & Garrett Groundwater, Inc. 56 Mein Street Meredith, NH 03253 Chantilly, VA Waterville, ME.