Data and Tools
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NHDPlus Puerto Rico & U.S. Virgin Islands Data (Vector Processing Unit 21)
NHDPlus data for the Hawaii vector processing unit.
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NHDPlus Northern Mariana Islands Data (Vector Processing Unit 22m)
NHDPlus data for the South Atlantic West vector processing unit.
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NHDPlus Hawaii Data (Vector Processing Unit 20)
NHDPlus data for the Hawaii vector processing unit.
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NHDPlus California Data (Vector Processing Unit 18)
NHDPlus data for the California vector processing unit.
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NHDPlus Pacific Northwest Data (Vector Processing Unit 17)
NHDPlus data for the Pacific Northwset vector processing unit.
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NHDPlus Great Basin Data (Vector Processing Unit 16)
NHDPlus data for the Great Basin vector processing unit.
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NHDPlus Rio Grande Data (Vector Processing Unit 13)
NHDPlus data for the Rio Grande vector processing unit.
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NHDPlus Souris-Red-Rainy Data (Vector Processing Unit 09)
NHDPlus data for the Souris-Red-Rainy vector processing unit.
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NHDPlus Lower Mississippi Data (Vector Processing Unit 08)
NHDPlus data for the Lower Mississippi vector processing unit.
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NHDPlus Ohio Data (Vector Processing Unit 05)
NHDPlus data for the Ohio vector processing unit.
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NHDPlus Great Lakes Data (Vector Processing Unit 04)
NHDPlus data for the Great Lakes vector processing unit.
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The Alternatives for Disposition of Electronics Planning Tool (ADEPT)
ADEPT tool landing page
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Post-processing IsoSource Results
Discussion and a detailed example of post-processing results from the IsoSource stable isotope mixing model.
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Stable Isotope Mixing Models for Estimating Source Proportions
Stable isotope analysis can be used in ecological studies to trace chemical movement through the environment. This page provides three analysis tools for download: IsoError, IsoConc, and IsoSource.
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Clean Water State Revolving Fund (CWSRF) National Information Management System Reports
Tables documenting sources and uses of CWSRF funds, national total and by state.
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ECM for Florylpicoxamid & Degradate X12485649 in Water - MRID 51074466
Environmental Chemistry Methods for Florylpicoxamid & Degradate in Water - MRID 51074466
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ECM for Florylpicoxamid & Degradate X12485649 in Soil/Sediment - MRID 51074468
Environmental Chemistry Methods for Florylpicoxamid & Degradate in Soil/Sediment - MRID 51074468
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CAA Title V Petition Dates in EPA Region 7 (Midwest)
When petitions for Title V permits being issued by permitting authorities in Region 7 (Midwest) are due.
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EnviroAtlas Data Archive
Archive of EnviroAtlas data sets
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EPA-SMCB ESI Phase 1
EPA-SMCB ESI Phase 1