# Presentation: 717066

## Advisory Committee on Water InformationStreamgaging Task Force

- Charge:  Determine the streamflow information needs of the Nation, identify the optimal streamgaging network to meet the needs, and prepare recommendations for funding responsibilities.

## Streamgaging Task Force Members

- Interstate Council on Water Policy
- U. S. Geological Survey
- American Association of State Geologists
- American Society of Civil Engineers
- American Water Resources Association
- Association of State Floodplain Managers
- Association of Western State Engineers
- Ground Water Protection Council

## Streamgaging Task Force Members

- Tennessee Valley Authority
- Western States Water Council
- Bureau of Reclamation
- National Weather Service
- Natural Resources Conservation Service
- U. S. Environmental Protection Agency
- U. S. Army Corps of Engineers

## Streamgaging Task ForcePlan

- Identify goals of a national network
- Compile information on all available streamgaging stations
- Evaluate achievement of National goals using the USGS network model
- Identify additional stations needed to achieve each goal
- Estimate cost of new or upgraded stations
- Propose a long-term funding strategy
- Submit recommendations to the ACWI

## Streamgaging Task ForceNational Network Goals

- NWS and _NRCS_ forecast points*
- NFIP communities
- Key river basins*
- River basin compacts and decrees and major river crossings of state, _tribal_, and international boundaries*
- Representative streams and rivers for flow estimation and long-term trends*
- National water-quality monitoring network streams*
- Rivers with impaired water quality

## Streamgaging Task ForceNational Network Goals

- Rivers with NPDES permits exceeding 10 MGD
- Rivers with significant canoeing, kayaking and rafting
- Rivers draining Federal lands
- Major rivers with diversions
- Inflow and outflow of major reservoirs
- Rivers supporting migratory fish populations
- Rivers used for commercial navigation

## USGS Network Model

- Conterminous U.S.
- 60,000 streams (total 1M kilometers)
- 329 river basins and 2,200 watersheds
- NWS and NRCS sites
- 18,000 NFIP communities
- 303(d) file of impaired reaches
- NPDES permits
- Reservoir inventory
- Whitewater inventory
- Water use by county and HUC
- 20,000 streamflow stations
- 7,000 USGS active
- 1,800 other agency stations

## National Flood Insurance Program Sites

**National Flood Insurance Program Sites**
-                          21,602 Participating Communities

- Active - 1492

- Inactive - 1057

- Proposed NSIP Site - 110

- Other Agency - 210

- _Gages_

- New Site - 4428

## Stream Reaches with Impaired Water Quality

**Stream Reaches with Impaired Water Quality**

- Active Site - 1616

- Inactive Site - 1221

- Other Agency Site - 207

- Proposed NSIP Site - 76

- Total 9123 Gages Required, of which 3120 Existing

- _Gages_

- New Site - 6003

## National Pollution Discharge Elimination System Sites

**National Pollution Discharge Elimination System Sites**

- Active Site - 554

- Inactive Site - 226

- Other Agency Site - 107

- Proposed NSIP Site - 49

- _Gages_

- New Site - 1180

## American Whitewater Stream Reaches

**American Whitewater Stream Reaches**
-               1485 Streams – over 19,000 Miles

- Active Site - 450

- Inactive Site - 368

- Other Agency Site - 31

- Proposed NSIP Site - 9

- Total of 2,175 gages required to meet 50% of metric

- _Existing Gages_

- New Site - 1317

## Rivers Draining Federal Lands

- Active - 36

- Inactive - 18

- Proposed NSIP Site - 28

- Other Agency - 7

- Total 89 Sites, 40 NSIP Sites

- Federal Lands

## Surface-Water Diversions

**Surface-Water Diversions**

- > 25 percent surface-water diversion

- Active - 11

- Inactive - 3

- Proposed NSIP Site - 9

- Other Agency - 4

- Total 27 Sites

##  Reservoirs with at least 50,000 ac-ft of Normal Capacity

-  **Reservoirs with at least 50,000 ac-ft of Normal Capacity**

- 162 Meet Goal

- 399 w/ Outflow Gage Only

- 41 w/ Inflow Gage Only

- 160 w/ NO Inflow or Outflow Gage

-   793 additional gages needed to meet goal

-  763 Reservoirs

##  Migratory Fish Habitat

-  Migratory Fish Habitat

- Active Site - 104

- Inactive Site - 82

- Other Agency Site - 14

- Proposed NSIP Site - 4

- New Site - 92

- 296 Total Sites and Coastal Cataloging Units

## Commercial Navigable Rivers 

- Active Site - 55

- Inactive Site - 31

- Other Agency Site - 34

- New/Proposed Site - 88

- Total 208 Sites, 98 NSIP Sites

- Commercial Navigable Rivers
-         194 Locks & Dams on 37 Rivers

## Summary of Task Force Requirements

- NWS and NRCS forecasting		3,127
- NFIP communities			7,297
- Major river basins			   384
- Compacts and borders			   538
- Flow estimation and trends		   849
- Water-quality monitoring			   209
- Impaired water quality			9,123
- NPDES permits				2,116
- River safety				4,350
- Federal lands				     89
- Surface-water diversions			     27
- Reservoirs				1,526
- Migratory fish habitat			   296
- Commercial navigation			   208
- 	Total individual requirements	             30,385
- 	Actual number of stations required     18,330

## Number of Goals Met By Proposed Network Stations

-               (30,385 requirements; 18,330 stations)

- 1 Goal – 12,210 Sites

- 2 Goals – 4,170 Sites

- 3-4 Goals – 1,800 Sites

- 5-9 Goals – 149 Sites