1. Data Elements Site name Site type WU transaction type Source namePS IN TH
WU transaction type WD RT CU
Source name
Source type GW SW
Source quality
Fresh
Saline
Brackish
Latitude/longitude
Country
State
State FIPS
County
County FIPS

2. Data Elements 14-digit HUC 8-digit HUC Data type Units Daily avg
Site specific
Aggregated
Units
Mgal/d
cfs
Daily avg
Daily monthly avg Daily annual avg

3. Data layers Precipitation Temperature Wind speed Land use
Crop coverage

4. Flow Types Natural flow Altered flow Withdrawals Return flows
Consumptive use

5. Where do altered flows occur?
7.5 million miles of streams
# number of miles of flow altered streams?
Aggregated withdrawals
Site-specific withdrawals
Water transferred between reservoirs
Reservoir
Tailwater
River reach