Water Resources

More than 50% of the state falls in the top three high-quality stream watershed classes. While 46% of these watersheds are currently protected, the share of protected high-quality stream watersheds decreases dramatically with increasing population density.

Almost 20,000 acres of land over aquifers was converted from natural land cover to urban land uses from 2002 to 2010, with most of this change happening in southeast New Hampshire.

Only 13% of the land that overlays public wells and reservoirs is currently protected from development.

Favorable Gravel Well Analysis

Favorable Gravel Well Analysis (FGWA) data is included in the Water Resources reports below. A separate introduction to the FGWA data, a GeoPDF map, and FGWA-only reports are available here.

Municipalities

Click the first letter of the municipality below, then click the name in the list that appears.

Acworth – Albany – Alexandria – Allenstown – Alstead – Alton – Amherst – Andover – Antrim – Ashland – Atkinson – Atkinson & Gilmanton – Auburn

Barnstead – Barrington – Bartlett – Bath – Beans Grant – Beans Purchase – Bedford – Belmont – Bennington – Benton – Berlin – Bethlehem – Boscawen – Bow – Bradford – Brentwood – Bridgewater – Bristol – Brookfield – Brookline

Cambridge – Campton – Canaan – Candia – Canterbury – Carroll – Center Harbor – Chandlers Purchase – Charlestown – Chatham – Chester – Chesterfield – Chichester – Claremont – Clarksville – Colebrook – Columbia – Concord – Conway – Cornish – Crawfords Purchase – Croydon – Cutts Grant

Dalton – Danbury – Danville – Deerfield – Deering – Derry – Dixs Grant – Dixville – Dorchester – Dover – Dublin – Dummer – Dunbarton – Durham

East Kingston – Easton – Eaton – Effingham – Ellsworth – Enfield – Epping – Epsom – Errol – Ervings Location – Exeter

Farmington – Fitzwilliam – Francestown – Franconia – Franklin – Freedom – Fremont

Gilford – Gilmanton – Gilsum – Goffstown – Gorham – Goshen – Grafton – Grantham – Greenfield – Greenland – Greens Grant – Greenville – Groton

Hadleys Purchase – Hales Location – Hampstead – Hampton – Hampton Falls – Hancock – Hanover – Harrisville – Harts Location – Haverhill – Hebron – Henniker – Hill – Hillsborough – Hinsdale – Holderness – Hollis – Hooksett – Hopkinton – Hudson

Jackson – Jaffrey – Jefferson

Keene – Kensington – Kilkenny – Kingston

Laconia – Lancaster – Landaff – Langdon – Lebanon – Lee – Lempster – Lincoln – Lisbon – Litchfield – Littleton – Londonderry – Loudon – Low & Burbanks – Lyman – Lyme – Lyndeborough

Madbury – Madison – Manchester – Marlborough – Marlow – Martins Location – Mason – Meredith – Merrimack – Middleton – Milan – Milford – Millsfield – Milton – Monroe – Mont Vernon – Moultonborough

Nashua – Nelson – New Boston – New Castle – New Durham – New Hampton – New Ipswich – New London – Newbury – Newfields – Newington – Newmarket – Newport – Newton – North Hampton – Northfield – Northumberland – Northwood – Nottingham

Odell – Orange – Orford – Ossipee

Pelham – Pembroke – Peterborough – Piermont – Pinkham's Grant – Pittsburg – Pittsfield – Plainfield – Plaistow – Plymouth – Portsmouth

Randolph – Raymond – Richmond – Rindge – Rochester – Rollinsford – Roxbury – Rumney – Rye

Salem – Salisbury – Sanbornton – Sandown – Sandwich – Sargents Purchase – Seabrook – Second College – Sharon – Shelburne – Somersworth – South Hampton – Springfield – Stark – Stewartstown – Stoddard – Strafford – Stratford – Stratham – Success – Sugar Hill – Sullivan – Sunapee – Surry – Sutton – Swanzey

Tamworth – Temple – Thompson & Meserve – Thornton – Tilton – Troy – Tuftonboro

Unity – Unorganized Territory

Wakefield – Walpole – Warner – Warren – Washington – Waterville Valley – Weare – Webster – Wentworth – Wentworths Location – Westmoreland – Whitefield – Wilmot – Wilton – Winchester – Windham – Windsor – Wolfeboro – Woodstock

Counties

Belknap
Carroll
Cheshire
Coos
Grafton
Hillsborough
Merrimack
Rockingham
Strafford
Sullivan

State of New Hampshire