U.S. DEPARTMENT OF THE INTERIOR Prepared in cooperation with the SCIENTIFIC INVESTIGATIONS MAP 3136 U.S. GEOLOGICAL SURVEY STATE DEPARTMENT OF ENVIRONMENTAL CONSERVATION Location of wells and test holes - SHEET 1 of 4 Reynolds, R.J., and Calef, F.J., III., 2010, Hydrogeologic data update for the stratified-drift in the Sprout and Fishkill Creek valleys, Dutchess County, New York

73°55' 73°50' 73°45' 41°45' DU4693 DU1222 DU1223 DU4867 DU6531 DU4606 DU5373 DU6954 80˚ 79˚ 78˚ 77˚ 76˚ 75˚ 74˚ 73˚ 72˚ 45˚ DU5993 DU1489 DU 377 DU4691 DU4291 DU3612 DU3491 DU1225 DU3996 CANADA DU4996 DU1224 DU4635 DU3151 DU4582 DU3154 DU3955 DU4659 DU3153 DU3152 44˚ DU4015 DU5915 DU3631

DU 416 Lake Ontario VERMONT DU6214 DU 419 DU1942 DU5400 DU6768 DU6301 DU6445 DU1490 NEW DU4938 DU4894

43˚ DU7088 DU5914 HAMPSHIRE DU1492 DU3641 DU6839 NEW YORK DU6557 DU1491 DU7250 DU7249 DU6415 DU6026 DU6300 DU5213 DU6411 DU5621 Lake DU1226 DU4891 DU4892 Erie DU1461 DU4583 DU6630 DU4766 DU5848 DU6014 DU6374 DU5840 DU3624 MASSACHUSETTS DU1227 DU5841DU4893 DU6777 DU6776 DU5988 DU4890 42˚ DU3623 DUTCHESS DU6879 DU5462 COUNTY DU 461 DU5260 CONNECTICUT DU3625 PENNSYLVANIA DU3211DU3212 DU6631 DU1496 DU1497 DU3213DU3210 Study area DU5632 DU4895 DU6714 DU 386 41˚ NEW DU6590 DU5053 0 25 50 75 100 MILES JERSEY Atlantic DU 481 DU3500 DU6713 025 50 75 100 KILOMETERS Ocean DU 456 DU6077 DU6237 DU6788

DU1994 DU5485 73°49' 73°48' 73°47' DU5319 DU5894 DU3948 DU4401 DU18 81 DU 385 DU5262 DU1805 DU2014 DU 389 DU 462 DU 464

DU4030 DU4966 DU 237 DU 384 DU3177

DU1547 DU1852 DU 61 DU1762 DU4706 DU1958 DU 463 DU3810 DU3532 DU3811 DU6208 DU3450 DU 952 41°37' DU 651 DU7184 DU 70 DU7047 DU 383 DU4118 DU4656 DU2007 DU1548 DU 529 DU1863 DU4019 DU 412 DU5780 DU3975 DU4174 DU5770 DU2093 DU7347DU3132 DU3125 DU3976 DU3977 DU4028 DU2094 DU4172 DU4670 DU3978 DU5133 DU4168 DU5933 DU1822 DU1499 DU4668 DU3124 DU4711 DU4798 DU1961 DU3119 DU 381 DU6013 DU2095 DU3122 DU4969 DU3870 DU4795 DU2100 DU2096 DU1541 DU 380 DU4925 DU2097 DU1542 DU3123 DU3126 DU5174 DU4797 DU1228 DU3127 Local DU4669 DU5425 DU4831 DU2046 DU5322 DU2047 DU2054 DU4814 DU 324 DU2048 DU3108 DU2063 DU3109 DU5189 DU5069 DU2049 DU2053 DU6654 DU2051 DU2064 DU3107 DU3106 DU4707 DU4835 DU4837 DU4832 DU3980 DU2052 DU3105 DU5789 DU2050 DU3104 DU3861 DU4840 DU2059 DU4950 DU4236 DU3902 DU3847 DU4836 DU2101 DU3133 DU6778 DU2066 DU6199 DU4961 DU7216 DU2041 DU5186 DU6377 DU2040 DU2039 DU2065 DU6940 DU6585 DU4822 DU2060 DU2042 DU1503 DU6200 DU4283 DU2038 DU1504 DU4862 DU4201 DU2043 DU2036 DU1925 DU6348 DU6110 DU6547 DU1505 DU2044 DU2035 DU 363 DU6429 DU4897 DU2045 DU2034 DU1506 DU6985 DU5471 DU2033 DU2067 DU6292 DU4905 DU2068 DU6027 DU7124 DU2071 DU2032 DU7124 DU6783 DU2057 DU6614 DU4796 DU2030 DU2031 DU2056 DU2103 DU2102 DU2069 DU3460 DU2072 DU2058 DU2073 DU2070 DU5237 DU5909 DU2055 DU5270 DU2028 DU2074 DU6003 DU4080 DU 683 DU6262 DU3459 DU5269 DU5945 DU2108 DU7171 DU4274 DU1500 DU4708 DU4674 DU2027 DU 403 DU1501 DU1502 DU4675 DU4694 DU1241 DU1947 HOPEWELL PRECISION DU5021 DU4792 DU5022 DU2026 DU4547 DU5642 DU1849 DU1880 DU4601 DU5578 DU 364 DU2062 DU1877 DU5399 DU4673 DU5579 DU2107 DU2029 DU2075 DU1876 DU 433 DU2025 DU5912 DU5596 DU1878 DU4695 DU5580 DU2076 DU6337 DU2105 SUPERFUND SITEDU3135 DU5575DU5576 DU4858 DU3965 DU1529 DU4273 DU6340 DU5027 DU4793 DU2061 DU6951 DU4272 DU4857 DU2077 DU4031 DU4856 DU2078 DU2079 DU4726 DU2104 DU 548 DU1528 41°36' DU2080 DU2106 DU6908 DU7165 DU 642 DU 360 DU4046 DU3916 DU6024 DU5218 DU4263 DU1879 DU6857 DU2081 DU5375 DU4264 DU1514 DU4861 DU6344 DU1515 DU4262 DU1784 DU3140 DU3147 41°40' DU6870 DU4070 DU1954 DU2109 DU3145 DU 422 DU4763 DU4071 DU4073 DU5597 DU2114 DU1996 DU1235 DU3940 DU2110 DU3144 DU 365 DU3941 DU1236 DU4465 DU4477 DU2113 DU3143 DU4475 DU 410 DU3479 DU 401 DU1516 DU1825 DU5229 DU5769 DU1237 DU3950 DU4813 DU2085 DU1826 DU5549 DU3651 DU3142 DU1517 DU5948DU5946 DU3956 DU3478 DU3484 DU2112 DU5550 DU1853 DU3957 DU3141 DU4041 DU3493 DU2111 DU1854 DU5981 DU6850 DU2082 DU4478 DU5985 DU3531 DU4800 DU6906 DU2083 DU1545 DU4131 DU4464 DU1546 DU3483 DU3964 DU5742 DU 420 DU4463 DU1530 DU5724 DU1861 DU 409 DU4029 DU4958 DU1962 DU 431 DU1960 DU1543 DU1959 DU5758 DU1544 DU6552 DU1518DU1522 DU2086 DU1234 DU1520 DU1549 DU2087 DU2116 DU2098 DU 392 DU1519 DU3769 DU2088 DU 387 DU1821 DU 367 DU7258 DU5336 DU3171 DU 402 DU4322 DU5252 DU2115 DU3169 DU 407 DU1550 DU3167 DU2099 DU2118 DU3168 DU1850 DU3768 DU5251 DU4928 DU4050 DU1040 DU3170 DU2117 DU1244 DU4316 DU1864 DU5574 DU3181 DU1245 DU5159 DU3137 DU2089 DU 567 DU1551 DU3136 DU5190 DU4319 DU3542 DU2090 DU2119 DU1238 DU 991 DU3543 DU6956 DU1513 DU3518 DU4320 DU3767 DU 940 DU2091 DU1817 DU4321 DU2092 DU1246 DU1816 DU3702 DU1819 DU5888 DU1815 DU 368 DU1926DU6982 DU1538 DU 432 DU1247 DU1537 DU3179 DU1536 DU6055 DU1534 DU1535 DU6981 DU6573 0 0.25 0.5 0.75 1 MILE DU1532 DU 430 DU1533 DU 406

DU1866 DU1867 DU3540 0 0.25 0.5 0.75 1 KILOMETER DU1531 DU3541 DU6753 DU3539 DU1868 DU1865 DU1745 DU3782 DU1248 DU6843 41°35' DU6561 DU6825 DU1847 DU 390 DU1818 DU1848 DU4323 DU5905 DU6462 DU1957 DU1977 DU1956 DU3890c DU6824 DU1846 DU6465 DU6827 DU6779 DU4107 DU4992 DU5009

73°48' 73°47' DU 405

DU4660 DU6322 DU6422 DU 424 DU6309 DU3244 DU6554 DU3472DU3470DU3469 DU5663 DU6326 DU6550 DU4401 DU6375 DU6350DU6895 DU 786 DU2014 D U1805 DU1763 DU 389 DU1949 DU6349 DU1950 DU6488 SHENANDOAH ROAD DU 443 DU5314 DU5532DU5558 DU6497 DU5899 DU6903 DU3177 DU5313 DU5312 DU1547 DU4215 DU3176 DU1640 SUPERFUND SITE DU6098 DU1762 DU3759 DU4593 DU 458 DU3159 DU3161 DU4936 DU5188 DU3160DU3158 DU1552 DU 651 DU 607 DU7047 DU5687 DU6104 DU 435 DU 939 DU1553 DU2007 DU4118 DU4656 DU3200 DU 529 DU4873 DU1602 DU5780 DU1548 DU3530 DU1835 DU4028 DU2093 DU4670 DU5770 DU4019 DU2094 DU4168 DU5933 DU4668 DU 987 DU6099 DU3119 DU2095 DU4085 DU5555 DU4795 DU1541 DU7186 DU3870 DU6013 DU2100 DU2097 DU 411 DU7187 DU3403 DU4797 DU1542 DU3636 DU1603 DU4669 DU4814 DU2096 DU5697 DU5493 DU2046 DU1604 DU4831 DU2047 DU5044 DU2054 DU1703 DU2049 DU2063 DU1766 DU6352 DU 1780 DU4127 DU2052 DU4835DU4837 DU4832 DU2053 DU2064 DU1539 DU4840 DU2050 DU3902 DU1540 DU5604 DU5179 DU 370 DU7216 DU2101 DU1935 DU4836 DU2040 DU1925 Y DU2039 DU2066 A DU1052 DU1324 DU3241 DU2059 DU2044 DU2065 W DU 371 DU2037 K DU1775 DU2060 R DU3199 DU1321 DU 372 DU1323 DU6021 DU 394 DU2043 A DU 366 DU2034 P DU7125 DU 84DU 85DU 84DU DU2071 DU2045 DU1322 DU 437 E DU3214 DU1527 DU5528 DU2032 DU2056 T DU1318 DU2030 DU2057 A DU3872 DU3235 DU1319 DU4796 T DU2072 DU2031 DU2058 S DU1702 DU2069 DU3243 DU2073 C DU2028 I DU 683 DU2103 DU2102 DU2070 DU 684 DU2055 N DU2108 O DU5920 DU 403 C

A DU1241 DU1947 T DU2027 DU2026 DU3965 DU2075 41°32' DU 457 DU 961 DU6209 DU2025 DU4793 DU2076 DU3998 DU5676 DU2105 DU2062 DU4858 DU2104 DU1242 DU2078 DU4726 DU5554 DU1243 DU2106 DU2077 DU2080 DU7165 DU2079 DU2081 DU 442 DU4943 DU5581 DU6709 DU3226 DU1784 DU6344 DU2114 DU6870 DU4860 DU2113 DU2109 DU6072 DU5713 DU 414 DU 401 DU 336 DU2110 DU1605 DU2112 DU3651 DU2111 DU2085 DU1606 DU5742 DU1545 DU5063 DU6190 DU2083 DU2082 DU2084 DU1546 DU3231 DU 369 DU3198 DU5505 DU4690 DU3232 DU1543 DU2086 DU1544 DU 392 DU2017 DU1549 DU2087 DU2116 DU1550 DU2098 DU4928 DU7258 DU2118 DU2088 DU2115 DU2099 DU1244 DU2117 DU1245 DU1253 DU3096 DU1808 DU2089 DU 396 DU2090 DU1551 DU1250 DU4069 DU3230 DU3092 DU2119 DU1251 DU1246 DU3095 DU2091 DU1807 DU1252 DU2092 DU3242 DU6546 DU 415 DU3097 DU1926

DU 452 DU1325 DU1247 DU5916 DU6159 DU6573 DU6753 DU4380 DU7200 DU 397 DU 611 DU1248 DU7199 DU3234 DU7198 DU6561 DU3225 DU5692 DU3224 DU68 25 DU1014 DU1256 DU6462 DU4957 DU1257 DU1456 41°35' DU3099 DU7152 DU5905 DU5480 DU3240 DU3239 DU5160 DU3101 DU1255 DU6824 DU3100 DU3772 DU6465 DU6827 DU 413 DU 341 DU6884 DU3236 DU3233 DU3196 DU30 98 DU3094 DU3687 DU3894 DU3237 DU3238 DU7048 DU7138 DU6023 DU6572 DU3686 DU1622 DU1554 DU7051 DU1259 DU1621 DU5691 DU6022 DU1258 DU5391 DU1623 DU3228 DU1806 DU6820 DU6390 DU4683 DU1624 DU2015 DU5235 DU1769 DU 393 DU6389 DU 440 DU1836 DU6555 DU4129 DU5430 DU1613 DU1608 DU1785 DU4815 DU6739 DU6562DU6683 DU4147 DU7023 DU6740 DU6905 DU1614 DU1607 DU5392 DU6419 DU4761 DU6925 DU1261 DU1555 DU3893 DU 373 DU1786 DU6819 DU1610 DU1260DU7290 DU6682 DU 343 DU1609 DU6382 DU5469 DU4235 DU 398 DU4740 DU1615 DU1618 DU5438 DU1616 DU1767 DU1617 DU1771 DU3195 DU 484 DU 453 DU1611 DU5951 DU1612 DU 395 DU1772 DU1620 DU1619 DU2013 DU 345 DU5850 DU1556 DU4504 DU7292 DU 608 DU5197 DU6744 0 0.2 0.4 0.6 MILE DU3000 DU7017 DU6977 DU4605 DU1923 DU 342 DU5849 DU6205 DU5464 DU 758 DU3002 DU6962 DU5463 DU 949 DU4922 DU3001 DU7086DU7080 0 0.2 0.4 0.6 KILOMETER DU6976 DU3229 DU 376 DU5062 DU1920 DU 441 DU 964 DU1936 DU5029 DU5593DU5362 DU5594 DU 399 DU1764 DU3194 DU1773 DU4942 DU4941 DU 781 DU5023 DU4975 DU1765 DU6758 DU 821 DU1625 DU 782 DU5506 DU4306 DU5366 DU5364 DU6764 DU1326 DU3423 DU1526 DU1931 DU1626 DU4161 DU 779 DU1779 DU 673 DU5002 DU5143 DU 329 DU5765 DU1834 DU4203 DU 773 DU 946 DU 776 DU13 27 DU 780 DU1930 DU5766 DU 775 DU1796 DU5153 DU4204 DU4202 DU4280 DU6356 DU4649 DU6105 DU1262DU1267 DU5365 DU6259 DU1263 DU1265 DU 785 DU6355 DU1628 DU1264DU1268 DU1778 DU1629 DU1627 DU 771 DU 478 DU4618 DU 772 DU4619 DU6075

DU 613 DU4167 DU5908 DU4650 DU1820 DU 694 DU4846 DU5384 DU4282 DU3427 DU1632 DU1004 DU1635 DU6615 DU1633 DU1634 DU 485 DU7271 DU1003 DU 950 DU4579 DU7307 DU 374 DU1002 DU 784 DU1793 DU5444 DU5600 DU 657 DU7234 DU4218 DU5404 DU5081 DU3909 DU5012 DU5416 DU5777 DU 333 DU4424 DU1523 DU54 15 DU1524 DU6612 DU1636 DU6169 DU 444 DU6163 DU 777 DU5198 DU5496 DU5767DU5582 DU4727 DU6161 DU6160 DU4065 DU 353 DU6162 DU1791 DU5241 DU1948 DU2016 DU5325 DU1929 D U 344 DU 455 DU1928 DU6456 DU6613 DU1001 DU 951 DU5757 DU3193 DU1000 DU 861 DU1630 DU5839 DU6093 DU 400 DU 445 DU 583 DU5414 DU 689 DU6094 DU6939 DU4660 DU6321 DU 695 DU6322DU6422 DU 476 DU3070 DU6308 DU3244 DU3022 DU6309 DU 378 DU2012 DU3023 DU5663 DU6554 DU6350 DU 446 DU 769 DU6712 DU3463 DU3465 DU3466 DU 443 DU6550 DU5180 DU 767 DU3021 DU6326 DU6349 DU 774 DU6497 DU 429 DU 770 DU 607 DU3020 DU 768 DU1631 DU3076 DU3704 DU3078 DU1790 DU3077 DU3075 DU1780 DU1065 DU5179 DU1788 DU5612 DU 332 DU3080 DU3241 DU1334 DU 783 DU5863 DU3071 DU7298 DU7293 DU 335 DU3235 DU1071 DU1333 DU 477 DU3079 DU1335 DU3192 DU3072 DU3243 DU1072 DU 961 DU1073 DU3073 DU4556 DU3191 DU1064 DU3226 DU5672 DU 336 DU1063 DU1013 DU 958 DU6190 DU6731 DU1066 DU1011 DU3231 DU2017 DU3218 DU1069 DU1012 DU1008 DU3232 DU3219 DU39 14 DU3230 DU1006 DU 959 84 DU3012 DU1007 DU1792 DU3242 DU3017 DU3217 DU 526 DU4380 DU3234 DU3220 DU 967 DU 334 DU1934 DU3018 DU4009 DU4276 DU3225 DU3240 DU3239 DU3227 DU1070 DU3228 DU 778 DU3237 DU3236 DU1781 DU7069 DU6467 DU3013 DU5001 DU3014 DU3009 DU 447 DU3015 DU2013 DU1924 DU3006 DU1772 DU3007 DU3010 DU 328 DU 626 DU7309 DU1938 DU3008 WUDU 1 DU 337 DU1922 DU3016 DU 960 DU3229 DU 466 DU3131 DU3216 DU 331 DU 630 DU1060 DU1005 DU 330 DU 482 DU1789 DU 992 DU 948 DU 511 gravel aquifer. This report updates a previously publishedDU6571 USGS report (Moore and others, 1982) and DU 327 DU 465 DU4617 DU4310 DU3929 shows wells, water-table altitudes, and saturated thicknesses in areas where data was insufficient in

DU1927 DU7031 DU1062 1982. DU1768 DU 947 Methods DU 346 DU 215 DU1570 DU 448 DU 325 DU1567 DU1569 DU1565 DU1571 New well data obtained through the NYSDEC Water Well Program was used primarily to create the

DU1566 well-location map and to update the saturated-thickness map published by Moore and others (1982). In DU 990 DU1568 DU1572 DU5116 DU1054 addition, monitoring-well logs and water-level data from remedial investigations of - DU1051,DU1058, DU3162 DU1053 DU 450 DU 449 DU1057 DU3163 contamination sites at Hopewell Junction and Shenandoah, NY, were used to update the Moore and DU1056 DU1055 DU1573 others (1982) water-table and saturated-thickness maps. The surficial geology in the expanded portion DU6351 DU6838 DU5342 DU 326 DU1933 DU4307 of the mapped area was compiled from available field maps (Connally, 1980; Gerber, 1982); published DU 656 DU 339 DU1574 reports (Connally and Sirkin, 1986); and digital soils mapping from the Soils Survey Geographic

DU 352 Database (SSURGO) maintained by the Natural Resources Conservation Service (NRCS). The soils DU1576 DU5783 DU1575 DU5716 DU5369 DU1776 units in the SSURGO data set for the study area were assigned a parent-material code based on the DU7274 DU6566 DU 750 DU6207 DU5751 soil-unit descriptions, which were, in turn, plotted as an overlay to the USGS 1:24,000-scale DU6426 DU1638 DU5481 DU 451 DU5217 DU 347 DU1637 DU1577 topographic base map. The soil unit boundaries were then adjusted slightly to correspond with DU1639 EXPLANATION topography and geomorphic features to produce surficial geologic units in previously unmapped parts 41°30' This map shows the locations of wells and test holes from which hydrogeologic data were obtained for of the study area. The water-table map was constructed primarily using topographic stream control, and Abstract this report. Wells in the U.S. Geological Survey (USGS) National Water Information System (NWIS) The USEPA investigations are site-specific and limited in scope; however, both studies (CDM Federal was supplemented with water-level data in areas where data from wells were available. The previously database or in the New York State Department of Environmental Conservation (NYSDEC) Water Well The hydrogeology of the stratified-drift aquifer in the and Fishkill Creek valleys in Programs Corporation, 2008; Groundwater Sciences Corporation, 2002) have provided valuable published saturated-thickness map (Moore and others, 1982) was expanded into the northern valleys DU7128 Program database are identified by a county well number,DU7128 issued by the NYSDEC on behalf of the USGS, southern Dutchess County, New York, previously investigated by the U.S. Geological Survey hydrogeologic data from the drilling of monitoring wells. and the southeastern part of the drainage area, primarily through the use of well logs and reported preceded by a county prefix (“Du” for wells in Dutchess County). Monitoring wells, geoprobe borings, (USGS) in 1982, was updated through the use of new well data made available through the New One of the primary purposes of the USGS’s Detailed Aquifer Mapping Program in New York is to water levels. As part of this update, geographic information system (GIS) coverages were created for test holes, and inventoried wells for which information was provided by consultants are also identified by York State Department of Environmental Conservation’s Water Well Program. Additional well data provide basic hydrogeologic information on the State’s to Federal, State, and local agencies each map in this report, using geographic information system software, and are available through the a county well number, but are differentiated using separate map symbols. Many of these test holes and related to U.S. Environmental Protection Agency (USEPA) remedial investigations of two charged with managing and protecting New York’s groundwater resources. This information is USGS member inventory page on the New York State GIS Clearinghouse Web page monitoring wells were installed as part of investigations, funded by the U.S. Environmental Protection groundwater contamination sites near the villages of Hopewell Junction and Shenandoah, New York, particularly important in areas of New York that are undergoing rapid development, with a resultant (http://www.nysgis.state.ny.us). Agency (USEPA), of two Federal Superfund sites. Well use,DU 546 whether domestic, public supply, or were also used in this study. The boundary of the stratified-drift aquifer described in a previous increase in usage of both municipal and self-supplied groundwater. The USGS has conducted two Locations of Wells and Test Holes industrial/commercial is not differentiated by type, and all wells used for withdrawal are shown with the USGS report was extended slightly eastward and southward to include adjacent tributary valleys and previous appraisals of aquifers in Dutchess County. The first was an appraisal of the groundwater This map shows the location of wells and test holes used to update the previous USGS study of this same well symbol, regardless of use type. The aquifer boundary, defined as the boundary between the USEPA groundwater contamination site at Shenandoah, New York. The updated report consists of resources in the Fishkill-Beacon area (Snavely, 1980); the second (Moore and others, 1982) was one of area (Moore and others, 1982). Well data were compiled from various sources, including the USGS stratified drift and relatively impermeable till or bedrock, is shown as a heavy blue line. maps showing well locations, surficial geology, altitude of the water table, and saturated thickness of the first aquifer-mapping assessments carried out under the original USGS Detailed Aquifer Mapping the aquifer. Geographic information system coverages of these four maps were created as part of the Program, in cooperation with the New York State Department of Health (NYSDOH). This second National Water Information System (NWIS) database, which contains well data from the previous Aquifer boundary—Indicates contact between unconsolidated deposits that comprise the Sprout Creek-Fishkill Creek update process. report (Moore and others, 1982) assesses the hydrogeology of the surficial aquifer in a 35-square-mile studies of this area (Simmons and others, 1961; Snavely, 1980; Moore and others, 1982), as well as an aquifer and adjacent deposits of till or bedrock unpublished compilation of well records conducted by the USGS for Dutchess County (D.S. Lumia, Introduction area within the Sprout Creek and Fishkill Creek valleys. At the time these studies were done, however, Limit of mapped area—Indicates arbitrary trucation of mapped area relatively few well data were available that could be used to define the hydrogeologic framework of the U.S. Geological Survey, written commun., 1990). More recent well data were provided by the DU 2101 NYSDEC through its Water Well Driller Program, by which drillers’ logs and construction details of all Test boring—Geoprobe test boring conducted by Camp Dresser McKee for the Hopewell Precision USEPA Superfund Dutchess County, New York, is currently (2009) experiencing rapid development and, valley-fill aquifers in some areas; specifically, data were insufficient to define the thickness of the investigation consequently, the county’s water needs are growing. Much of Dutchess County, particularly the aquifer in the northern half of the mapped area (Moore and others, 1982, sheet 4). Since then, new drilled wells in New York State are required to be submitted to the NYSDEC. Monitoring-well and DU 5325 southwestern part, contains many productive valley-fill (outwash sand and gravel) aquifers that are geoprobe records for two USEPA Superfund studies were provided by two consulting firms–Camp, Well—from New York State Department of Environmental Conservation Water Well Program well database domestic well data have become available, the logs of which were obtained through the New York DU 2028 underlain by fractured carbonate bedrock. This combination results in comparatively large yields for Dresser, McKee (CDM) for the Hopewell Precision Superfund site near Hopewell Junction, and DU5664 State Department of Environmental Conservation (NYSDEC) Water Well Program Well—inventoried by Lockheed Martin Corporation as part of the Hopewell Precision USEPA Superfund investigation both sand and gravel and bedrock wells. The high permeability of the outwash and the fractured Groundwater Sciences Corporation for wells drilled near the Shenandoah Road Superfund site near DU 367 (www.dec.ny.gov/lands/4997.html). In addition, the two USEPA investigations previously mentioned Well—from U.S. Geological Survey (USGS) National Water Information System (NWIS) database nature of the carbonate bedrock, have fostered the growth of long plumes of contaminated have provided some additional monitoring-well data available to the USGS for this update. Shenandoah, NY. In addition, the results of an inventory of domestic wells affected by contamination DU 3226 DU 349 Well—Bedrock monitoring well installed by Groundwater Sciences Corporation as part of the Shenandoah Road groundwater in some areas. Currently, the U.S. Environmental Protection Agency (USEPA) is in the Hopewell Precision Superfund site were provided by Lockheed Martin Corporation. These USEPA Superfund site investigation. Geophysical logging conducted by the USGS conducting site investigations of two groundwater contamination sites within the Sprout Purpose and Scope groups of well data are shown on sheet 1 in different colors to denote their respective sources. In DU 2063 DU 965 Well—Monitoring well installed by Camp Dresser McKee for the Hopewell Precision U.S. Environmental Protection Creek-Fishkill Creek watershed. At both of these sites, hundreds of private wells are contaminated by This report presents updated hydrogeologic maps of the Sprout and Fishkill Creek valleys in southern addition, two inset maps–one for the Hopewell Precision Superfund site and the other for the Agency (USEPA) Superfund investigation volatile organic compounds, chiefly trichloroethylene (TCE) and perchloroethylene (PCE). The U.S. Dutchess County, New York. The maps show (1) the location of wells and test holes, (2) the surficial Shenandoah Road Superfund site–are included on sheet 1 to show the closely spaced wells more Geological Survey (USGS) has provided assistance to USEPA at these two Dutchess County sites. geology, (3) the altitude of the water table, and (4) the saturated thickness of the surficial sand and clearly.

Base from U.S. Geological Survey digital raster graphics, 1:24,000 Hydrology by R. J. Reynolds and F. J. Calef III, 2010 Universal Transverse Mercator projection, North American Datum 1983, Zone 18N 0 0.25 0.5 0.75 1 MILE

0 0.5 1 KILOMETER

SCALE 1:24,000 Hydrogeologic Data Update for the Stratified-Drift Aquifer in the Sprout and Fishkill Creek Valleys, Dutchess County, New York by Richard J. Reynolds and F.J. Calef III 2010