Mitchell E. Daniels, Jr., Governor Department of Natural Resources Division of Water Robert E. Carter Jr., Director Potentiometric Surface Map 18-A POTENTIOMETRIC SURFACE MAP OF THE UNCONSOLIDATED AQUIFERS OF HANCOCK COUNTY, INDIANA Hancock County, Indiana is located in the central portion of the state. The majority of the R. 7 E. R. 8 E. R. 6 E. R. 7 E. county is situated in the East Fork White River Basin, however, a relatively small area in the northwest section is located within the White and West Fork White River Basin. C k o e u e n r t The Potentiometric Surface Map (PSM) of the unconsolidated aquifers of Hancock County y 0 C 0 0 R 10 40 85 11 was mapped by contouring the elevations of 1745 static water-levels reported on well records 8 9 9 8 9 r 13 0 o N 7 12 2 a a «¬ 11 0 C 9 a 9 0 d 0 s 109 0 g 3 8 o received primarily over a 50 year period. These wells are completed in aquifers at various 8 10 h «¬ 7 8 4 0 u 0 u 5 v 12 9 8 i 9 6 11 0 n S 1 l l 9 depths, and typically, under confined conditions (bounded by impermeable layers above and 9 0 0 e t 9 R y 10 6 E 8 d Fortville R below the water bearing formation). However, some wells were completed under unconfined o County Road 1000 N a (not bounded by impermeable layers) settings. The potentiometric surface is a measure of R. 5 E. R. 6 E. d Nashville 0 5 1 the pressure on water in a water bearing formation. Water in an unconfined aquifer is at 9 1 0 0 atmospheric pressure and will not rise in a well above the top of the water bearing formation, k 15 E 14 e 13 16 in contrast to water in a confined aquifer which is under hydrostatic pressure and will rise in 18 e 17 83 15 r 14 0 17 16 18 a well above the top of the water bearing formation. 0 16 C 0 13 0 ® 8 13 d 14 7 r R 8 a rd 18 15 g Milners 14 o 17 Static water-level measurements in individual wells used to construct county PSM’s are cC «¬9 u M 36 S Corner N d 0 indicative of the water-level at the time of well completion. The groundwater level within an orth ¤£ C 0 F R 0 0 ork ty Road 900 N o 9 Coun 0 1 n u aquifer constantly fluctuates in response to rainfall, evapotranspiration, groundwater 7 a 1 n 8 i t d y 0 i movement, and groundwater pumpage. Therefore, measured static water-levels in an area r 9 R e 21 22 9 23 Woodbury k o 20 may differ due to local or seasonal variations. Because fluctuations in groundwater are M 24 a e 23 19 22 d 0 20 e 19 2 r 24 typically small, static water-levels can be used to construct a generalized PSM. Groundwater 7 Warrington 8 20 0 C 23 21 22 21 0 flow is naturally from areas of recharge toward areas of discharge. As a general rule, but 19 k 24 East Fork E 23 c Eden certainly not always, groundwater flow approximates the overlying topography and intersects White River u «¬234 B the land surface at major streams. Basin ranch «¬234 Universal Transverse Mercator (UTM) coordinates for the water wells were either physically Dry B 26 29 28 27 obtained in the field, determined through address geocoding, or reported on water well 27 26 25 30 29 28 records; however, the location of the majority of the water well records used to make the 25 27 26 28 30 Shirley PSM were not field verified. Elevation data were obtained from a digital elevation model. McCordsville 30 29 Quality control/quality assurance procedures were utilized to refine or remove data where 26 25 h errors were readily apparent. c Wilkinson unty Road 700 N n 0 Co a 8 r Unconsolidated static water levels in Hancock County range from a high of 1012 feet mean 9 B W sea level (msl) in the northeastern section of the county, to a low of 740 feet msl in the 0 35 0 w 32 33 34 4 33 36 southwestern portion. Groundwater flow direction within the White and West Fork White 32 35 o 31 31 34 l d 36 l a 34 35 i River Basin is northwest toward Fall Creek, and generally to the south-southwest, toward 36 o 32 33 31 R Willow W T. 17 N. Sugar Creek and the Big Blue River, in the East Fork White River Basin. y 35 t Branch n T. 16 N. u o The county PSM can be used to define the regional groundwater flow path and to identify C County Road 600 N significant areas of groundwater recharge and discharge. County PSM’s represent overall T. 17 N. regional characteristics and are not intended to be a substitute for site-specific studies. 4 3 T. 16 N. 1 6 5 2 3 2 5 4 6 0 0 3 2 1 7 3 6 5 4 k 9 8 e 2 1 e r County Road 500 N C 0 Maxwell 2 e 8 0 N n County Road 50 F i o w r t y v d W i 8 l 10 l n 9 W 9 7 8 0 e 12 11 a 0 11 0 0 P r 10 3 9 0 i k 8 5 7 B d e 7 a 11 9 d 0 10 12 0 o a 9 8 5 9 0 o 12 R Location Map 11 8 8 0 R y County Road 400 N t West Fork y n t C u n o o White River u u o C Mowhawk n C Basin t y k R W e o 0 17 e a 13 18 0 16 15 r d 14 14 2 15 16 C 3 d 13 18 0 a 13 k 14 0 o 17 14 Mount c E 15 R u 16 Comfort y Road 300 N B 17 t County 18 n u o 40 C 8 County Road 300 N ¨¦§70 23 22 23 20 21 24 19 k 22 e 22 e 19 20 21 21 r 19 20 23 24 C 24 70 23 ¨¦§ e County Road 200 N l i 0 m 6 x 8 i 200 N 9 County Road 8 26 S 0 h c 27 t 30 i 25 27 26 29 28 D 29 25 8 30 28 26 6 s 27 t 0 t 26 28 o 30 29 P 1 0.5 0 1 Mile 0 County Road 100 N 8 5 25 7 9 0 Charlottesville W 33 34 0 31 33 35 0 32 1 Cleveland 0 32 35 36 92 d 34 a 31 1 0.5 0 1 Kilometer 35 o 36 34 R 40 33 £ 31 y ¤ T. 16 N. 0 36 32 t 35 n 3 u T. 15 N. 8 o Greenfield 9 C 2 0 0 84 0 4 T. 16 N. Cumberland 9 T. 15 N. 2 1 6 Philadelphia 5 4 3 40 5 C £ 1 6 4 ¤ o 4 Spring 2 6 5 u 0 1 Gem n 3 Lake 3 t 9 y 2 unty Road 100 S Co R oad 100 S o County R C a o d u 8 n 0 t y 0 R E o 7 a 11 12 7 d 10 k 10 7 9 9 e 12 8 11 1 9 8 e 8 r 0 1 C 0 0 12 0 82 E 11 r 9 a g EXPLANATION u County Road 200 S C S Digital Elevation Model of Hancock County, Indiana o C u o Line of equal elevation, in n u 9 t n W 0 y 0 t feet above mean sea level y 0 R 950 0 k o R Westland k 5 Potentiometric Contour a e e o 16 d 17 e d 15 14 e 18 17 a r r a 13 13 d 14 4 18 interval 10 feet o 15 C C 17 16 0 18 16 5 R e 0 0 8 r 8 M 9 W o 0 y 0 e 14 13 5 E i t o 0 D 0 e E n 8 r Stream r 0 4 r u 0 7 i o B s t d o C a w o n County Road R P 8 i 8 y k 0 t e n 8 u 20 21 9 o 9 State Road 1 «¬ 24 «¬ C 19 0 19 20 21 22 23 19 22 23 W 21 24 B i 20 0 870 nf 23 24 0 or 40 US Highway 4 d ¤£ R d d a o 400 S R County Road P New k 70 Interstate r 8 y e 5 t ¨¦§ e a 0 860 Palestine n 8 r 0 i u 3 r 0 C 3 i o 8 e 30 e C B 29 Basin Boundary n r 26 25 30 29 i 28 27 a 28 82 26 w n 28 27 0 25 c 0 y h 84 25 29 d 26 30 n a Municipal Boundary 800 r r S B County Road 500 e iv C R o M u e n lu e t 0 y 3 8 52 r 8 B i ¤£ Lake & River d 1 R ig County Road 550 S 0 i a o 34 36 B 7 Carrollton 33 n 34 31 a 32 33 d 9 35 31 R 0 32 33 32 35 36 3 31 d 35 36 0 Little SugarCreek 0 E T.