USGS National Aquifers
Map
Limit:
Items
| uri | rock_name | sameas | gis_metadata | gis_metadata2 | link | fid | aq_code | rock_type | valid_states | gis_data | gis_data2 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| https://geoconnex.us/ref/nat_aq/N100BSNRGB | Unconsolidated sand and gravel aquifers | https://geoconnex.us/ref/princip... | https://water.usgs.gov/ogw/aq_ex... | https://water.usgs.gov/ogw/aq_ex... | http://water.usgs.gov/ogw/aquife... | 1 | 101 | 100 | Arizona, California, Idaho,... | https://water.usgs.gov/ogw/aq_ex... | https://water.usgs.gov/ogw/aq_ex... |
| https://geoconnex.us/ref/nat_aq/N100CACSTL | Unconsolidated sand and gravel aquifers | https://geoconnex.us/ref/princip... | https://water.usgs.gov/ogw/aq_ex... | https://water.usgs.gov/ogw/aq_ex... | http://water.usgs.gov/ogw/aquife... | 2 | 103 | 100 | California | https://water.usgs.gov/ogw/aq_ex... | https://water.usgs.gov/ogw/aq_ex... |
| https://geoconnex.us/ref/nat_aq/N100CMBPLB | Unconsolidated sand and gravel aquifers | https://geoconnex.us/ref/princip... | https://water.usgs.gov/ogw/aq_ex... | https://water.usgs.gov/ogw/aq_ex... | http://water.usgs.gov/ogw/aquife... | 3 | 116 | 100 | Idaho, Oregon, Washington | https://water.usgs.gov/ogw/aq_ex... | https://water.usgs.gov/ogw/aq_ex... |
| https://geoconnex.us/ref/nat_aq/N100HGHPLN | Unconsolidated sand and gravel aquifers | https://geoconnex.us/ref/princip... | https://water.usgs.gov/ogw/aq_ex... | https://water.usgs.gov/ogw/aq_ex... | http://water.usgs.gov/ogw/aquife... | 4 | 107 | 100 | Colorado, Kansas, Nebraska, New... | https://water.usgs.gov/ogw/aq_ex... | https://water.usgs.gov/ogw/aq_ex... |
| https://geoconnex.us/ref/nat_aq/N100MSRVVL | Unconsolidated sand and gravel aquifers | https://geoconnex.us/ref/princip... | https://water.usgs.gov/ogw/aq_ex... | https://water.usgs.gov/ogw/aq_ex... | http://water.usgs.gov/ogw/aquife... | 5 | 109 | 100 | Arkansas, Illinois, Kentucky,... | https://water.usgs.gov/ogw/aq_ex... | https://water.usgs.gov/ogw/aq_ex... |
| https://geoconnex.us/ref/nat_aq/N100PCFNWB | Unconsolidated sand and gravel aquifers | https://geoconnex.us/ref/princip... | https://water.usgs.gov/ogw/aq_ex... | https://water.usgs.gov/ogw/aq_ex... | http://water.usgs.gov/ogw/aquife... | 6 | 104 | 100 | California, Idaho, Nevada,... | https://water.usgs.gov/ogw/aq_ex... | https://water.usgs.gov/ogw/aq_ex... |
| https://geoconnex.us/ref/nat_aq/N100PCFNWV | Igneous and metamorphic-rock aquifers | https://geoconnex.us/ref/princip... | https://water.usgs.gov/ogw/aq_ex... | https://water.usgs.gov/ogw/aq_ex... | https://water.usgs.gov/ogw/aquif... | 7 | 610 | 600 | California, Idaho, Montana,... | https://water.usgs.gov/ogw/aq_ex... | https://water.usgs.gov/ogw/aq_ex... |
| https://geoconnex.us/ref/nat_aq/N100PCSRVR | Unconsolidated sand and gravel aquifers | https://geoconnex.us/ref/princip... | https://water.usgs.gov/ogw/aq_ex... | https://water.usgs.gov/ogw/aq_ex... | http://water.usgs.gov/ogw/aquife... | 8 | 108 | 100 | New Mexico, Texas | https://water.usgs.gov/ogw/aq_ex... | https://water.usgs.gov/ogw/aq_ex... |
| https://geoconnex.us/ref/nat_aq/N100SYMOUR | Unconsolidated sand and gravel aquifers | https://geoconnex.us/ref/princip... | https://water.usgs.gov/ogw/aq_ex... | https://water.usgs.gov/ogw/aq_ex... | http://water.usgs.gov/ogw/aquife... | 9 | 110 | 100 | Texas | https://water.usgs.gov/ogw/aq_ex... | https://water.usgs.gov/ogw/aq_ex... |
| https://geoconnex.us/ref/nat_aq/N100WLMLWD | Unconsolidated sand and gravel aquifers | https://geoconnex.us/ref/princip... | https://water.usgs.gov/ogw/aq_ex... | https://water.usgs.gov/ogw/aq_ex... | http://water.usgs.gov/ogw/aquife... | 10 | 115 | 100 | Oregon, Washington | https://water.usgs.gov/ogw/aq_ex... | https://water.usgs.gov/ogw/aq_ex... |
| https://geoconnex.us/ref/nat_aq/N300ADAVMS | Sandstone aquifers | https://geoconnex.us/ref/princip... | https://water.usgs.gov/ogw/aq_ex... | https://water.usgs.gov/ogw/aq_ex... | http://water.usgs.gov/ogw/aquife... | 11 | 307 | 300 | Oklahoma | https://water.usgs.gov/ogw/aq_ex... | https://water.usgs.gov/ogw/aq_ex... |
| https://geoconnex.us/ref/nat_aq/N300CNRLOK | Sandstone aquifers | https://geoconnex.us/ref/princip... | https://water.usgs.gov/ogw/aq_ex... | https://water.usgs.gov/ogw/aq_ex... | http://water.usgs.gov/ogw/aquife... | 12 | 306 | 300 | Oklahoma | https://water.usgs.gov/ogw/aq_ex... | https://water.usgs.gov/ogw/aq_ex... |
| https://geoconnex.us/ref/nat_aq/N300COPLTS | Sandstone aquifers | https://geoconnex.us/ref/princip... | https://water.usgs.gov/ogw/aq_ex... | https://water.usgs.gov/ogw/aq_ex... | http://water.usgs.gov/ogw/aquife... | 13 | 301 | 300 | Arizona, Colorado, New Mexico,... | https://water.usgs.gov/ogw/aq_ex... | https://water.usgs.gov/ogw/aq_ex... |
| https://geoconnex.us/ref/nat_aq/N300ERLMZC | Sandstone aquifers | https://geoconnex.us/ref/princip... | https://water.usgs.gov/ogw/aq_ex... | https://water.usgs.gov/ogw/aq_ex... | http://water.usgs.gov/ogw/aquife... | 14 | 308 | 300 | Connecticut, Maryland,... | https://water.usgs.gov/ogw/aq_ex... | https://water.usgs.gov/ogw/aq_ex... |
| https://geoconnex.us/ref/nat_aq/N300JCBSVL | Sandstone aquifers | https://geoconnex.us/ref/princip... | https://water.usgs.gov/ogw/aq_ex... | https://water.usgs.gov/ogw/aq_ex... | http://water.usgs.gov/ogw/aquife... | 15 | 313 | 300 | Michigan, Wisconsin | https://water.usgs.gov/ogw/aq_ex... | https://water.usgs.gov/ogw/aq_ex... |
| https://geoconnex.us/ref/nat_aq/N300LCRTCS | Sandstone aquifers | https://geoconnex.us/ref/princip... | https://water.usgs.gov/ogw/aq_ex... | https://water.usgs.gov/ogw/aq_ex... | http://water.usgs.gov/ogw/aquife... | 16 | 304 | 300 | Iowa, Kansas, Minnesota,... | https://water.usgs.gov/ogw/aq_ex... | https://water.usgs.gov/ogw/aq_ex... |
| https://geoconnex.us/ref/nat_aq/N300LTRTRY | Sandstone aquifers | https://geoconnex.us/ref/princip... | https://water.usgs.gov/ogw/aq_ex... | https://water.usgs.gov/ogw/aq_ex... | http://water.usgs.gov/ogw/aquife... | 17 | 314 | 300 | Montana, North Dakota, South... | https://water.usgs.gov/ogw/aq_ex... | https://water.usgs.gov/ogw/aq_ex... |
| https://geoconnex.us/ref/nat_aq/N300MRSHLL | Sandstone aquifers | https://geoconnex.us/ref/princip... | https://water.usgs.gov/ogw/aq_ex... | https://water.usgs.gov/ogw/aq_ex... | http://water.usgs.gov/ogw/aquife... | 18 | 311 | 300 | Michigan | https://water.usgs.gov/ogw/aq_ex... | https://water.usgs.gov/ogw/aq_ex... |
| https://geoconnex.us/ref/nat_aq/N300NYSDSN | Sandstone aquifers | https://geoconnex.us/ref/princip... | https://water.usgs.gov/ogw/aq_ex... | https://water.usgs.gov/ogw/aq_ex... | http://water.usgs.gov/ogw/aquife... | 19 | 309 | 300 | New York | https://water.usgs.gov/ogw/aq_ex... | https://water.usgs.gov/ogw/aq_ex... |
| https://geoconnex.us/ref/nat_aq/N300PNSLVN | Sandstone aquifers | https://geoconnex.us/ref/princip... | https://water.usgs.gov/ogw/aq_ex... | https://water.usgs.gov/ogw/aq_ex... | http://water.usgs.gov/ogw/aquife... | 20 | 310 | 300 | Alabama, Georgia, Illinois,... | https://water.usgs.gov/ogw/aq_ex... | https://water.usgs.gov/ogw/aq_ex... |
| https://geoconnex.us/ref/nat_aq/N300RSHSPG | Sandstone aquifers | https://geoconnex.us/ref/princip... | https://water.usgs.gov/ogw/aq_ex... | https://water.usgs.gov/ogw/aq_ex... | http://water.usgs.gov/ogw/aquife... | 21 | 305 | 300 | Oklahoma | https://water.usgs.gov/ogw/aq_ex... | https://water.usgs.gov/ogw/aq_ex... |
| https://geoconnex.us/ref/nat_aq/N300UPCTCS | Sandstone aquifers | https://geoconnex.us/ref/princip... | https://water.usgs.gov/ogw/aq_ex... | https://water.usgs.gov/ogw/aq_ex... | http://water.usgs.gov/ogw/aquife... | 22 | 315 | 300 | Montana, North Dakota, South... | https://water.usgs.gov/ogw/aq_ex... | https://water.usgs.gov/ogw/aq_ex... |
| https://geoconnex.us/ref/nat_aq/N400ABKSMP | Carbonate-rock aquifers | https://geoconnex.us/ref/princip... | https://water.usgs.gov/ogw/aq_ex... | https://water.usgs.gov/ogw/aq_ex... | http://water.usgs.gov/ogw/aquife... | 23 | 407 | 400 | Oklahoma | https://water.usgs.gov/ogw/aq_ex... | https://water.usgs.gov/ogw/aq_ex... |
| https://geoconnex.us/ref/nat_aq/N400BISCYN | Carbonate-rock aquifers | https://geoconnex.us/ref/princip... | https://water.usgs.gov/ogw/aq_ex... | https://water.usgs.gov/ogw/aq_ex... | http://water.usgs.gov/ogw/aquife... | 24 | 414 | 400 | Florida | https://water.usgs.gov/ogw/aq_ex... | https://water.usgs.gov/ogw/aq_ex... |
| https://geoconnex.us/ref/nat_aq/N400BLAINE | Carbonate-rock aquifers | https://geoconnex.us/ref/princip... | https://water.usgs.gov/ogw/aq_ex... | https://water.usgs.gov/ogw/aq_ex... | http://water.usgs.gov/ogw/aquife... | 25 | 406 | 400 | Oklahoma, Texas | https://water.usgs.gov/ogw/aq_ex... | https://water.usgs.gov/ogw/aq_ex... |
| https://geoconnex.us/ref/nat_aq/N400BSNRGC | Carbonate-rock aquifers | https://geoconnex.us/ref/princip... | https://water.usgs.gov/ogw/aq_ex... | https://water.usgs.gov/ogw/aq_ex... | http://water.usgs.gov/ogw/aquife... | 26 | 401 | 400 | Arizona, California, Idaho, Nevada, Utah | https://water.usgs.gov/ogw/aq_ex... | https://water.usgs.gov/ogw/aq_ex... |
| https://geoconnex.us/ref/nat_aq/N400CSLHYN | Carbonate-rock aquifers | https://geoconnex.us/ref/princip... | https://water.usgs.gov/ogw/aq_ex... | https://water.usgs.gov/ogw/aq_ex... | http://water.usgs.gov/ogw/aquife... | 27 | 418 | 400 | North Carolina | https://water.usgs.gov/ogw/aq_ex... | https://water.usgs.gov/ogw/aq_ex... |
| https://geoconnex.us/ref/nat_aq/N400KNGSHL | Carbonate-rock aquifers | https://geoconnex.us/ref/princip... | https://water.usgs.gov/ogw/aq_ex... | https://water.usgs.gov/ogw/aq_ex... | http://water.usgs.gov/ogw/aquife... | 28 | 420 | 400 | Virgin Islands | https://water.usgs.gov/ogw/aq_ex... | https://water.usgs.gov/ogw/aq_ex... |
| https://geoconnex.us/ref/nat_aq/N400NYNECB | Carbonate-rock aquifers | https://geoconnex.us/ref/princip... | https://water.usgs.gov/ogw/aq_ex... | https://water.usgs.gov/ogw/aq_ex... | http://water.usgs.gov/ogw/aquife... | 29 | 416 | 400 | Connecticut, Maine,... | https://water.usgs.gov/ogw/aq_ex... | https://water.usgs.gov/ogw/aq_ex... |
| https://geoconnex.us/ref/nat_aq/N400ORDVCN | Carbonate-rock aquifers | https://geoconnex.us/ref/princip... | https://water.usgs.gov/ogw/aq_ex... | https://water.usgs.gov/ogw/aq_ex... | http://water.usgs.gov/ogw/aquife... | 30 | 411 | 400 | Kentucky, Tennessee | https://water.usgs.gov/ogw/aq_ex... | https://water.usgs.gov/ogw/aq_ex... |
| https://geoconnex.us/ref/nat_aq/N400PDMBRC | Carbonate-rock aquifers | https://geoconnex.us/ref/princip... | https://water.usgs.gov/ogw/aq_ex... | https://water.usgs.gov/ogw/aq_ex... | http://water.usgs.gov/ogw/aquife... | 31 | 417 | 400 | Maryland, New Jersey, North... | https://water.usgs.gov/ogw/aq_ex... | https://water.usgs.gov/ogw/aq_ex... |
| https://geoconnex.us/ref/nat_aq/N400PDMBRX | Igneous and metamorphic-rock aquifers | https://geoconnex.us/ref/princip... | https://water.usgs.gov/ogw/aq_ex... | https://water.usgs.gov/ogw/aq_ex... | http://water.usgs.gov/ogw/aquife... | 32 | 611 | 600 | Alabama, Delaware, District of... | https://water.usgs.gov/ogw/aq_ex... | https://water.usgs.gov/ogw/aq_ex... |
| https://geoconnex.us/ref/nat_aq/N400SLRDVN | Carbonate-rock aquifers | https://geoconnex.us/ref/princip... | https://water.usgs.gov/ogw/aq_ex... | https://water.usgs.gov/ogw/aq_ex... | http://water.usgs.gov/ogw/aquife... | 33 | 410 | 400 | Illinois, Indiana, Iowa,... | https://water.usgs.gov/ogw/aq_ex... | https://water.usgs.gov/ogw/aq_ex... |
| https://geoconnex.us/ref/nat_aq/N400UPCRBN | Carbonate-rock aquifers | https://geoconnex.us/ref/princip... | https://water.usgs.gov/ogw/aq_ex... | https://water.usgs.gov/ogw/aq_ex... | http://water.usgs.gov/ogw/aquife... | 34 | 412 | 400 | Iowa, Minnesota | https://water.usgs.gov/ogw/aq_ex... | https://water.usgs.gov/ogw/aq_ex... |
| https://geoconnex.us/ref/nat_aq/N500MSSPPI | Sandstone and carbonate-rock aquifers | https://geoconnex.us/ref/princip... | https://water.usgs.gov/ogw/aq_ex... | https://water.usgs.gov/ogw/aq_ex... | http://water.usgs.gov/ogw/aquife... | 35 | 503 | 500 | Alabama, Illinois, Indiana,... | https://water.usgs.gov/ogw/aq_ex... | https://water.usgs.gov/ogw/aq_ex... |
| https://geoconnex.us/ref/nat_aq/N500PLOZOC | Sandstone and carbonate-rock aquifers | https://geoconnex.us/ref/princip... | https://water.usgs.gov/ogw/aq_ex... | https://water.usgs.gov/ogw/aq_ex... | http://water.usgs.gov/ogw/aquife... | 36 | 504 | 500 | Minnesota, Montana, North... | https://water.usgs.gov/ogw/aq_ex... | https://water.usgs.gov/ogw/aq_ex... |
| https://geoconnex.us/ref/nat_aq/N500VLYRDG | Sandstone and carbonate-rock aquifers | https://geoconnex.us/ref/princip... | https://water.usgs.gov/ogw/aq_ex... | https://water.usgs.gov/ogw/aq_ex... | http://water.usgs.gov/ogw/aquife... | 37 | 505 | 500 | Alabama, Georgia, Maryland, New... | https://water.usgs.gov/ogw/aq_ex... | https://water.usgs.gov/ogw/aq_ex... |
| https://geoconnex.us/ref/nat_aq/N600CMBPLV | Igneous and metamorphic-rock aquifers | https://geoconnex.us/ref/princip... | https://water.usgs.gov/ogw/aq_ex... | https://water.usgs.gov/ogw/aq_ex... | http://water.usgs.gov/ogw/aquife... | 38 | 607 | 600 | Idaho, Oregon, Washington | https://water.usgs.gov/ogw/aq_ex... | https://water.usgs.gov/ogw/aq_ex... |
| https://geoconnex.us/ref/nat_aq/N600HIVLCC | Igneous and metamorphic-rock aquifers | https://geoconnex.us/ref/princip... | https://water.usgs.gov/ogw/aq_ex... | https://water.usgs.gov/ogw/aq_ex... | http://water.usgs.gov/ogw/aquife... | 39 | 608 | 600 | Hawaii | https://water.usgs.gov/ogw/aq_ex... | https://water.usgs.gov/ogw/aq_ex... |
| https://geoconnex.us/ref/nat_aq/N600SKRVPB | Unconsolidated sand and gravel aquifers | https://geoconnex.us/ref/princip... | https://water.usgs.gov/ogw/aq_ex... | https://water.usgs.gov/ogw/aq_ex... | http://water.usgs.gov/ogw/aquife... | 40 | 117 | 100 | Idaho, Oregon | https://water.usgs.gov/ogw/aq_ex... | https://water.usgs.gov/ogw/aq_ex... |
| https://geoconnex.us/ref/nat_aq/N600SKRVPV | Igneous and metamorphic-rock aquifers | https://geoconnex.us/ref/princip... | https://water.usgs.gov/ogw/aq_ex... | https://water.usgs.gov/ogw/aq_ex... | http://water.usgs.gov/ogw/aquife... | 41 | 606 | 600 | Idaho, Oregon | https://water.usgs.gov/ogw/aq_ex... | https://water.usgs.gov/ogw/aq_ex... |
| https://geoconnex.us/ref/nat_aq/N600SRNVDV | Igneous and metamorphic-rock aquifers | https://geoconnex.us/ref/princip... | https://water.usgs.gov/ogw/aq_ex... | https://water.usgs.gov/ogw/aq_ex... | http://water.usgs.gov/ogw/aquife... | 42 | 601 | 600 | Nevada | https://water.usgs.gov/ogw/aq_ex... | https://water.usgs.gov/ogw/aq_ex... |
| https://geoconnex.us/ref/nat_aq/N9999OTHER | None | https://geoconnex.us/ref/princip... | https://water.usgs.gov/ogw/aq_ex... | https://water.usgs.gov/ogw/aq_ex... | http://water.usgs.gov/ogw/aquife... | 43 | 999 | 999 | All | https://water.usgs.gov/ogw/aq_ex... | https://water.usgs.gov/ogw/aq_ex... |
| https://geoconnex.us/ref/nat_aq/S100CNRLVL | Unconsolidated sand and gravel aquifers | https://geoconnex.us/ref/princip... | https://water.usgs.gov/ogw/aq_ex... | https://water.usgs.gov/ogw/aq_ex... | http://water.usgs.gov/ogw/aquife... | 44 | 106 | 100 | California | https://water.usgs.gov/ogw/aq_ex... | https://water.usgs.gov/ogw/aq_ex... |
| https://geoconnex.us/ref/nat_aq/S100CSLLWD | Semiconsolidated sand aquifers | https://geoconnex.us/ref/princip... | https://water.usgs.gov/ogw/aq_ex... | https://water.usgs.gov/ogw/aq_ex... | http://water.usgs.gov/ogw/aquife... | 45 | 201 | 200 | Alabama, Florida, Louisiana,... | https://water.usgs.gov/ogw/aq_ex... | https://water.usgs.gov/ogw/aq_ex... |
| https://geoconnex.us/ref/nat_aq/S100MSEMBM | Semiconsolidated sand aquifers | https://geoconnex.us/ref/princip... | https://water.usgs.gov/ogw/aq_ex... | https://water.usgs.gov/ogw/aq_ex... | http://water.usgs.gov/ogw/aquife... | 46 | 203 | 200 | Alabama, Arkansas, Illinois,... | https://water.usgs.gov/ogw/aq_ex... | https://water.usgs.gov/ogw/aq_ex... |
| https://geoconnex.us/ref/nat_aq/S100NATLCP | Semiconsolidated sand aquifers | https://geoconnex.us/ref/princip... | https://water.usgs.gov/ogw/aq_ex... | https://water.usgs.gov/ogw/aq_ex... | http://water.usgs.gov/ogw/aquife... | 47 | 205 | 200 | Delaware, District of Columbia,... | https://water.usgs.gov/ogw/aq_ex... | https://water.usgs.gov/ogw/aq_ex... |
| https://geoconnex.us/ref/nat_aq/S100NRMTIB | Unconsolidated sand and gravel aquifers | https://geoconnex.us/ref/princip... | https://water.usgs.gov/ogw/aq_ex... | https://water.usgs.gov/ogw/aq_ex... | http://water.usgs.gov/ogw/aquife... | 48 | 105 | 100 | Idaho, Montana, Washington, Wyoming | https://water.usgs.gov/ogw/aq_ex... | https://water.usgs.gov/ogw/aq_ex... |
| https://geoconnex.us/ref/nat_aq/S100PGTSND | Unconsolidated sand and gravel aquifers | https://geoconnex.us/ref/princip... | https://water.usgs.gov/ogw/aq_ex... | https://water.usgs.gov/ogw/aq_ex... | http://water.usgs.gov/ogw/aquife... | 49 | 112 | 100 | Washington | https://water.usgs.gov/ogw/aq_ex... | https://water.usgs.gov/ogw/aq_ex... |
| https://geoconnex.us/ref/nat_aq/S100RIOGRD | Unconsolidated sand and gravel aquifers | https://geoconnex.us/ref/princip... | https://water.usgs.gov/ogw/aq_ex... | https://water.usgs.gov/ogw/aq_ex... | http://water.usgs.gov/ogw/aquife... | 50 | 102 | 100 | Colorado, New Mexico, Texas | https://water.usgs.gov/ogw/aq_ex... | https://water.usgs.gov/ogw/aq_ex... |
| https://geoconnex.us/ref/nat_aq/S100SECSLP | Semiconsolidated sand aquifers | https://geoconnex.us/ref/princip... | https://water.usgs.gov/ogw/aq_ex... | https://water.usgs.gov/ogw/aq_ex... | http://water.usgs.gov/ogw/aquife... | 51 | 204 | 200 | Alabama, Georgia, Mississippi,... | https://water.usgs.gov/ogw/aq_ex... | https://water.usgs.gov/ogw/aq_ex... |
| https://geoconnex.us/ref/nat_aq/S100SURFCL | Unconsolidated sand and gravel aquifers | https://geoconnex.us/ref/princip... | https://water.usgs.gov/ogw/aq_ex... | https://water.usgs.gov/ogw/aq_ex... | http://water.usgs.gov/ogw/aquife... | 52 | 111 | 100 | Alabama, Florida, Georgia, ... | https://water.usgs.gov/ogw/aq_ex... | https://water.usgs.gov/ogw/aq_ex... |
| https://geoconnex.us/ref/nat_aq/S100TXCLUP | Semiconsolidated sand aquifers | https://geoconnex.us/ref/princip... | https://water.usgs.gov/ogw/aq_ex... | https://water.usgs.gov/ogw/aq_ex... | http://water.usgs.gov/ogw/aquife... | 53 | 202 | 200 | Louisiana, Texas | https://water.usgs.gov/ogw/aq_ex... | https://water.usgs.gov/ogw/aq_ex... |
| https://geoconnex.us/ref/nat_aq/S300CAMORD | Sandstone aquifers | https://geoconnex.us/ref/princip... | https://water.usgs.gov/ogw/aq_ex... | https://water.usgs.gov/ogw/aq_ex... | http://water.usgs.gov/ogw/aquife... | 54 | 312 | 300 | Illinois, Iowa, Michigan,... | https://water.usgs.gov/ogw/aq_ex... | https://water.usgs.gov/ogw/aq_ex... |
| https://geoconnex.us/ref/nat_aq/S300DNVRBS | Sandstone aquifers | https://geoconnex.us/ref/princip... | https://water.usgs.gov/ogw/aq_ex... | https://water.usgs.gov/ogw/aq_ex... | http://water.usgs.gov/ogw/aquife... | 55 | 302 | 300 | Colorado | https://water.usgs.gov/ogw/aq_ex... | https://water.usgs.gov/ogw/aq_ex... |
| https://geoconnex.us/ref/nat_aq/S400FLORDN | Carbonate-rock aquifers | https://geoconnex.us/ref/princip... | https://water.usgs.gov/ogw/aq_ex... | https://water.usgs.gov/ogw/aq_ex... | http://water.usgs.gov/ogw/aquife... | 56 | 413 | 400 | Alabama, Florida, Georgia,... | https://water.usgs.gov/ogw/aq_ex... | https://water.usgs.gov/ogw/aq_ex... |
| https://geoconnex.us/ref/nat_aq/S400OZRKPL | Carbonate-rock aquifers | https://geoconnex.us/ref/princip... | https://water.usgs.gov/ogw/aq_ex... | https://water.usgs.gov/ogw/aq_ex... | http://water.usgs.gov/ogw/aquife... | 57 | 405 | 400 | Arkansas, Illinois, Kansas,... | https://water.usgs.gov/ogw/aq_ex... | https://water.usgs.gov/ogw/aq_ex... |
| https://geoconnex.us/ref/nat_aq/S400RSWLBS | Carbonate-rock aquifers | https://geoconnex.us/ref/princip... | https://water.usgs.gov/ogw/aq_ex... | https://water.usgs.gov/ogw/aq_ex... | http://water.usgs.gov/ogw/aquife... | 58 | 402 | 400 | New Mexico | https://water.usgs.gov/ogw/aq_ex... | https://water.usgs.gov/ogw/aq_ex... |
| https://geoconnex.us/ref/nat_aq/S500EDRTRN | Sandstone and carbonate-rock aquifers | https://geoconnex.us/ref/princip... | https://water.usgs.gov/ogw/aq_ex... | https://water.usgs.gov/ogw/aq_ex... | http://water.usgs.gov/ogw/aquife... | 59 | 501 | 500 | Arkansas, Oklahoma, Texas | https://water.usgs.gov/ogw/aq_ex... | https://water.usgs.gov/ogw/aq_ex... |