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New Hampshire Assessment Summary for Reporting Year 2006

Description of this table

	Size of Water
	Rivers and Streams (Miles)	Lakes, Reservoirs, and Ponds (Acres)	Bays and Estuaries (Square Miles)	Ocean and Near Coastal (Square Miles)
Good Waters
Previously impaired waters       now attaining all uses
Threatened Waters
TMDL completed
TMDL alternative
Non-pollutant impairment
TMDL needed
Impaired Waters	9,627.7	185,877.6	17.9	70.2
TMDL completed
TMDL alternative
Non-pollutant impairment
TMDL needed	9,627.7	185,877.6	17.9	70.2
New TMDLs completed	7,524.0	150,309.6	.0	.0
Remaining TMDLs needed	2,103.7	35,568.0	17.9	70.2
Total Assessed Waters	9,627.7	185,877.6	17.9	70.2
Total Waters	10,881.0	187,728.7	21.3	70.2
Percent of Waters Assessed	88.5	99.0	84.0	100.0

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Summary of Water Quality Assessments for Each Waterbody Type
for Reporting Year 2006

New Hampshire Assessed Waters
Summary of Water Quality Attainment for Rivers and Streams
Reporting Year 2006

Description of this table Assessed Status Miles Assessed 9,627.7 Unassessed 1,253.3 Total Miles 10,881.0

Description of this table Attainment Status Miles Good .0 Threatened .0 Impaired 9,627.7 Total Miles Assessed 9,627.7

Description of this table TMDL Development Status Miles All TMDLs completed 7,524.0 TMDL alternative .0 Non-pollutant impairment .0 TMDL needed 2,103.7 Total Threatened and Impaired 9,627.7

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New Hampshire Assessed Waters
Designated Use Support for Rivers and Streams
Reporting Year 2006*

* Waters assessed for more than one designated use are included in multiple designated use groups below.

Description of this table

Designated Use	Miles Assessed	Percent Good	Percent Threatened	Percent Impaired	% Good
					% Threatened
					% Impaired
Aquatic Life	2,192.9	15.4	.4	84.2
Drinking Water Supply	9,627.7	100.0	.0	.0
Fish Consumption	9,627.7	.0	.0	100.0
Primary Contact Recreation	1,501.0	54.2	1.1	44.6
Secondary Contact Recreation	1,622.7	95.0	.0	5.0

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New Hampshire Causes of Impairment
for Threatened and Impaired Rivers and Streams
Reporting Year 2006

Description of this table

Cause of Impairment	Cause of Impairment Group	Miles Threatened or Impaired
Mercury	Mercury	9,627.7
pH	pH/Acidity/Caustic Conditions	1,571.0
Escherichia Coli (E. Coli)	Pathogens	657.3
Dissolved Oxygen	Organic Enrichment/Oxygen Depletion	283.4
Aluminum	Metals (other than Mercury)	209.2
Benthic Macroinvertebrates Bioassessments	Cause Unknown - Impaired Biota	199.2
Polychlorinated Biphenyls (PCBs)	Polychlorinated Biphenyls (PCBs)	176.1
Dissolved Oxygen Saturation	Organic Enrichment/Oxygen Depletion	162.3
Lead	Metals (other than Mercury)	120.2
Habitat Assessment (Streams)	Cause Unknown - Impaired Biota	81.1
Iron	Metals (other than Mercury)	47.7
Chloride	Salinity/Total Dissolved Solids/Chlorides/Sulfates	39.7
Non-Native Aquatic Plants	Nuisance Exotic Species	34.9
Copper	Metals (other than Mercury)	29.5
Chlorophyll-A	Algal Growth	23.6
Dioxin (Including 2,3,7,8-TCDD)	Dioxins	18.2
Other Flow Regime Alterations	Flow Alteration(s)	16.3
Phosphorus, Total	Nutrients	12.2
Zinc	Metals (other than Mercury)	11.4
Foam/Flocs/Scum/Oil Slicks	Other Cause	5.4
Creosote	Toxic Organics	3.5
Taste and Odor	Taste, Color and Odor	3.1
Manganese	Metals (other than Mercury)	3.0
Arsenic	Metals (other than Mercury)	1.5
Cadmium	Metals (other than Mercury)	1.0
DDD	Pesticides	.5
Chromium, Total	Metals (other than Mercury)	.5
Benzo[a]pyrene (PAHs)	Toxic Organics	.2

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New Hampshire Probable Sources of Impairments
for Threatened and Impaired Rivers and Streams
Reporting Year 2006

Description of this table

Probable Source	Probable Source Group	Miles Threatened or Impaired
Atmospheric Deposition - Toxics	Atmospheric Deposition	9,627.7
Source Unknown	Unknown	2,040.2
Municipal Point Source Discharges	Municipal Dishcarges/Sewage	51.3
Combined Sewer Overflows	Municipal Dishcarges/Sewage	49.1
Municipal (Urbanized High Density Area)	Urban-Related Runoff/Stormwater	38.5
Illicit Connections/Hook-Ups To Storm Sewers	Municipal Dishcarges/Sewage	37.4
Industrial Point Source Discharge	Industrial	32.8
Landfills	Land Application/Waste Sites/Tanks	26.9
Highway/Road/Bridge Runoff (Non-Construction Related)	Urban-Related Runoff/Stormwater	23.8
Commerical Districts (Shopping/Office Complexes)	Urban-Related Runoff/Stormwater	23.4
Unspecified Urban Stormwater	Urban-Related Runoff/Stormwater	18.1
Contaminated Groundwater	Groundwater Loadings/Withdrawals	11.6
Streambank Modifications/Destablization	Hydromodification	9.4
Inappropriate Waste Disposal	Spills/Dumping	8.0
Livestock (Grazing Or Feeding Operations)	Agriculture	7.0
Impacts From Hydrostructure Flow Regulation/Modification	Hydromodification	6.9
Acid Mine Drainage	Resource Extraction	5.3
Airports	Industrial	4.1
Industrial/Commercial Site Stormwater Discharge (Permittted)	Urban-Related Runoff/Stormwater	4.1
Rcra Hazardous Waste Sites	Industrial	3.5
Unpermitted Discharge (Industrial/Commercial Wastes)	Spills/Dumping	2.7
Unpermitted Discharge (Domestic Wastes)	Municipal Dishcarges/Sewage	2.4
Wet Weather Discharges (Point Source And Combination Of Stormwater, Sso Or Cso)	Municipal Dishcarges/Sewage	2.0
Impervious Surface/Parking Lot Runoff	Urban-Related Runoff/Stormwater	1.3
Habitat Modification - Other Than Hydromodification	Habitat Alterations (Not Directly Related To Hydromodification)	1.3
Animal Feeding Operations (Nps)	Agriculture	.3
Petroleum/Natural Gas Activities	Resource Extraction	.2
Pollutants From Public Bathing Areas	Recreation And Tourism (Non-Boating)	.0

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New Hampshire Assessed Waters
Summary of Water Quality Attainment for Lakes, Reservoirs, and Ponds
Reporting Year 2006

Description of this table Assessed Status Acres Assessed 185,877.6 Unassessed 1,851.1 Total Acres 187,728.7

Description of this table Attainment Status Acres Good .0 Threatened .0 Impaired 185,877.6 Total Acres Assessed 185,877.6

Description of this table TMDL Development Status Acres All TMDLs completed 150,309.6 TMDL alternative .0 Non-pollutant impairment .0 TMDL needed 35,568.0 Total Threatened and Impaired 185,877.6

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New Hampshire Assessed Waters
Designated Use Support for Lakes, Reservoirs, and Ponds
Reporting Year 2006*

* Waters assessed for more than one designated use are included in multiple designated use groups below.

Description of this table

Designated Use	Acres Assessed	Percent Good	Percent Threatened	Percent Impaired	% Good
					% Threatened
					% Impaired
Aquatic Life	110,746.4	8.1	.0	91.9
Drinking Water Supply	185,877.6	100.0	.0	.0
Fish Consumption	185,877.6	.0	.0	100.0
Primary Contact Recreation	130,888.9	92.0	.0	8.0
Secondary Contact Recreation	129,686.5	99.5	.0	.5

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New Hampshire Causes of Impairment
for Threatened and Impaired Lakes, Reservoirs, and Ponds
Reporting Year 2006

Description of this table

Cause of Impairment	Cause of Impairment Group	Acres Threatened or Impaired
Mercury	Mercury	185,877.6
pH	pH/Acidity/Caustic Conditions	93,052.4
Non-Native Aquatic Plants	Nuisance Exotic Species	68,934.1
Dissolved Oxygen Saturation	Organic Enrichment/Oxygen Depletion	16,182.7
Polychlorinated Biphenyls (PCBs)	Polychlorinated Biphenyls (PCBs)	14,717.9
Dissolved Oxygen	Organic Enrichment/Oxygen Depletion	8,578.3
Cyanobacteria Hepatotoxic Microcystins	Biotoxins	5,820.6
Escherichia Coli (E. Coli)	Pathogens	3,667.9
Chlorophyll-A	Algal Growth	3,015.0
Aluminum	Metals (other than Mercury)	653.2
Dioxin (Including 2,3,7,8-TCDD)	Dioxins	384.1
Chloride	Salinity/Total Dissolved Solids/Chlorides/Sulfates	109.2
Phosphorus, Total	Nutrients	20.0
Sedimentation/Siltation	Sediment	19.9
Benzo[b]fluoranthene	Toxic Organics	10.0
Benzo[a]anthracene	Toxic Organics	10.0
Dieldrin	Pesticides	10.0
Chrysene	Toxic Organics	10.0
Benzo[k]fluoranthene	Toxic Organics	10.0
Lindane	Pesticides	10.0
Heptachlor	Pesticides	10.0
DDD	Pesticides	10.0
Acenaphthene	Toxic Organics	10.0
Endrin	Pesticides	10.0
Pyrene	Toxic Organics	10.0
2-Methylnaphthalene	Pesticides	10.0
DDE	Pesticides	10.0
Indeno[1,2,3-Cd]Pyrene	Pesticides	10.0
Benzo[a]pyrene (PAHs)	Toxic Organics	10.0
Excess Algal Growth	Algal Growth	1.3

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New Hampshire Probable Sources of Impairments
for Threatened and Impaired Lakes, Reservoirs, and Ponds
Reporting Year 2006

Description of this table

Probable Source	Probable Source Group	Acres Threatened or Impaired
Atmospheric Deposition - Toxics	Atmospheric Deposition	185,877.6
Source Unknown	Unknown	93,848.2
Atmospheric Deposition - Acidity	Atmospheric Deposition	89,791.0
Municipal Point Source Discharges	Municipal Dishcarges/Sewage	568.9
Combined Sewer Overflows	Municipal Dishcarges/Sewage	562.0
Municipal (Urbanized High Density Area)	Urban-Related Runoff/Stormwater	434.6
Industrial Point Source Discharge	Industrial	415.5
Illicit Connections/Hook-Ups To Storm Sewers	Municipal Dishcarges/Sewage	359.1
Waterfowl	Natural/Wildlife	228.6
Unpermitted Discharge (Domestic Wastes)	Municipal Dishcarges/Sewage	223.3
On-Site Treatment Systems (Septic Systems And Similar Decencentralized Systems)	Municipal Dishcarges/Sewage	222.0
Package Plant Or Other Permitted Small Flows Discharges	Municipal Dishcarges/Sewage	142.2
Commerical Districts (Shopping/Office Complexes)	Urban-Related Runoff/Stormwater	109.2
Highway/Road/Bridge Runoff (Non-Construction Related)	Urban-Related Runoff/Stormwater	109.2
Residential Districts	Urban-Related Runoff/Stormwater	62.2
Flow Alterations From Water Diversions	Hydromodification	42.4
Pollutants From Public Bathing Areas	Recreation And Tourism (Non-Boating)	20.1
Discharges From Municipal Separate Storm Sewer Systems (Ms4)	Urban-Related Runoff/Stormwater	19.9
Animal Feeding Operations (Nps)	Agriculture	14.8
Wet Weather Discharges (Point Source And Combination Of Stormwater, Sso Or Cso)	Municipal Dishcarges/Sewage	4.6
Yard Maintenance	Urban-Related Runoff/Stormwater	.6

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New Hampshire Assessed Waters
Summary of Water Quality Attainment for Bays and Estuaries
Reporting Year 2006

Description of this table Assessed Status Square Miles Assessed 17.9 Unassessed 3.4 Total Square Miles 21.3

Description of this table Attainment Status Square Miles Good .0 Threatened .0 Impaired 17.9 Total Square Miles Assessed 17.9

Description of this table TMDL Development Status Square Miles All TMDLs completed .0 TMDL alternative .0 Non-pollutant impairment .0 TMDL needed 17.9 Total Threatened and Impaired 17.9

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New Hampshire Assessed Waters
Designated Use Support for Bays and Estuaries
Reporting Year 2006*

* Waters assessed for more than one designated use are included in multiple designated use groups below.

Description of this table

Designated Use	Square Miles Assessed	Percent Good	Percent Threatened	Percent Impaired	% Good
					% Threatened
					% Impaired
Aquatic Life	10.3	32.2	.6	67.2
Drinking Water Supply	17.9	100.0	.0	.0
Fish Consumption	17.9	.0	.0	100.0
Primary Contact Recreation	14.7	62.2	.0	37.8
Secondary Contact Recreation	14.1	91.3	.0	8.7
Shellfish Consumption	17.9	.0	.0	100.0

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New Hampshire Causes of Impairment
for Threatened and Impaired Bays and Estuaries
Reporting Year 2006

Description of this table

Cause of Impairment	Cause of Impairment Group	Square Miles Threatened or Impaired
Polychlorinated Biphenyls (PCBs)	Polychlorinated Biphenyls (PCBs)	17.9
Mercury	Mercury	17.9
Dioxin (Including 2,3,7,8-TCDD)	Dioxins	17.9
Fecal Coliform	Pathogens	9.3
Dissolved Oxygen	Organic Enrichment/Oxygen Depletion	6.7
Enterococcus Bacteria	Pathogens	5.5
Chlorophyll-A	Algal Growth	.9
Dissolved Oxygen Saturation	Organic Enrichment/Oxygen Depletion	.9
pH	pH/Acidity/Caustic Conditions	.4
Chrysene	Toxic Organics	.4
Dibenz[a,h]anthracene	Toxic Organics	.4
2-Methylnaphthalene	Pesticides	.4
DDT	Pesticides	.4
Fluoranthene	Toxic Organics	.4
DDD	Pesticides	.4
Naphthalene	Pesticides	.4
Fluorene	Toxic Organics	.4
Anthracene	Toxic Organics	.4
Pyrene	Toxic Organics	.4
Benzo[a]pyrene (PAHs)	Toxic Organics	.4
DDE	Pesticides	.4
Benzo[a]anthracene	Toxic Organics	.4
Acenaphthylene	Toxic Organics	.2
Phenanthrene	Toxic Organics	.2
Acenaphthene	Toxic Organics	.2
Benzo[g,h,i]perylene	Toxic Organics	.2
Indeno[1,2,3-Cd]Pyrene	Pesticides	.2
Dieldrin	Pesticides	.2
Biphenyl	Toxic Organics	.2

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New Hampshire Probable Sources of Impairments
for Threatened and Impaired Bays and Estuaries
Reporting Year 2006

Description of this table

Probable Source	Probable Source Group	Square Miles Threatened or Impaired
Atmospheric Deposition - Toxics	Atmospheric Deposition	17.9
Source Unknown	Unknown	17.9
Wet Weather Discharges (Point Source And Combination Of Stormwater, Sso Or Cso)	Municipal Dishcarges/Sewage	2.5
Combined Sewer Overflows	Municipal Dishcarges/Sewage	1.7
Unpermitted Discharge (Domestic Wastes)	Municipal Dishcarges/Sewage	.8
Animal Feeding Operations (Nps)	Agriculture	.5
Sanitary Sewer Overflows (Collection System Failures)	Municipal Dishcarges/Sewage	.4
Illicit Connections/Hook-Ups To Storm Sewers	Municipal Dishcarges/Sewage	.4

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New Hampshire Assessed Waters
Summary of Water Quality Attainment for Ocean and Near Coastal
Reporting Year 2006

Description of this table Assessed Status Square Miles Assessed 70.2 Unassessed .0 Total Square Miles 70.2

Description of this table Attainment Status Square Miles Good .0 Threatened .0 Impaired 70.2 Total Square Miles Assessed 70.2

Description of this table TMDL Development Status Square Miles All TMDLs completed .0 TMDL alternative .0 Non-pollutant impairment .0 TMDL needed 70.2 Total Threatened and Impaired 70.2

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New Hampshire Assessed Waters
Designated Use Support for Ocean and Near Coastal
Reporting Year 2006*

* Waters assessed for more than one designated use are included in multiple designated use groups below.

Description of this table

Designated Use	Square Miles Assessed	Percent Good	Percent Threatened	Percent Impaired	% Good
					% Threatened
					% Impaired
Aquatic Life	.3	100.0	.0	.0
Drinking Water Supply	70.2	100.0	.0	.0
Fish Consumption	70.2	.0	.0	100.0
Primary Contact Recreation	4.3	13.0	.0	87.0
Secondary Contact Recreation	.8	74.9	.0	25.1
Shellfish Consumption	70.2	.0	.0	100.0

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New Hampshire Causes of Impairment
for Threatened and Impaired Ocean and Near Coastal
Reporting Year 2006

Description of this table

Cause of Impairment	Cause of Impairment Group	Square Miles Threatened or Impaired
Polychlorinated Biphenyls (PCBs)	Polychlorinated Biphenyls (PCBs)	70.2
Mercury	Mercury	70.2
Dioxin (Including 2,3,7,8-TCDD)	Dioxins	70.2
Enterococcus Bacteria	Pathogens	3.7
Fecal Coliform	Pathogens	1.9

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New Hampshire Probable Sources of Impairments
for Threatened and Impaired Ocean and Near Coastal
Reporting Year 2006

Description of this table

Probable Source	Probable Source Group	Square Miles Threatened or Impaired
Atmospheric Deposition - Toxics	Atmospheric Deposition	70.2
Source Unknown	Unknown	70.2
Forced Drainage Pumping	Hydromodification	1.8
Wet Weather Discharges (Point Source And Combination Of Stormwater, Sso Or Cso)	Municipal Dishcarges/Sewage	1.5
Waterfowl	Natural/Wildlife	.1
Unpermitted Discharge (Domestic Wastes)	Municipal Dishcarges/Sewage	.1
Sewage Discharges In Unsewered Areas	Municipal Dishcarges/Sewage	.0

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New Hampshire Causes of Impairment for Reporting Year 2006

Description of this table

NOTE: Click on the underlined Cause of Impairment Group to see a list of specific state causes of impairment making up the Cause of Impairment Group.
Cause of Impairment Group	Size of Assessed Waters with Listed Causes of Impairment
	Rivers and Streams (Miles)	Lakes, Reservoirs, and Ponds (Acres)	Bays and Estuaries (Square Miles)	Ocean and Near Coastal (Square Miles)
Algal Growth	23.6	3,016.2	.9
Biotoxins		5,820.6
Cause Unknown - Impaired Biota	200.3
Dioxins	18.2	384.1	17.9	70.2
Flow Alteration(s)	16.3
Mercury	9,627.7	185,877.6	17.9	70.2
Metals (other than Mercury)	325.2	653.2
Nuisance Exotic Species	34.9	68,934.1
Nutrients	12.2	20.0
Organic Enrichment/Oxygen Depletion	326.7	16,337.5	6.7
Other Cause	5.4
Pathogens	657.3	3,667.9	14.1	3.9
Pesticides	.5	10.0	.4
pH/Acidity/Caustic Conditions	1,571.0	93,052.4	.4
Polychlorinated Biphenyls (PCBs)	176.1	14,717.9	17.9	70.2
Salinity/Total Dissolved Solids/Chlorides/Sulfates	39.7	109.2
Sediment		19.9
Taste, Color and Odor	3.1
Toxic Organics	3.7	10.0	.4

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New Hampshire Probable Sources Contributing to Impairments
for Reporting Year 2006

Description of this table

NOTE: Click on the underlined Probable Source Group to see a list of specific state Probable Sources making up the Probable Source Group.
Probable Source Group	Size of Assessed Waters with Probable Sources of Impairments
	Rivers and Streams (Miles)	Lakes, Reservoirs, and Ponds (Acres)	Bays and Estuaries (Square Miles)	Ocean and Near Coastal (Square Miles)
Agriculture	7.3	14.8	.5
Atmospheric Deposition	9,627.7	185,877.6	17.9	70.2
Groundwater Loadings/Withdrawals	11.6
Habitat Alterations (Not Directly Related To Hydromodification)	1.3
Hydromodification	16.3	42.4		1.8
Industrial	40.3	415.5
Land Application/Waste Sites/Tanks	26.9
Municipal Dishcarges/Sewage	139.6	1,810.0	4.6	1.6
Natural/Wildlife		228.6		.1
Recreation And Tourism (Non-Boating)	.0	20.1
Resource Extraction	5.5
Spills/Dumping	10.8
Unknown	2,040.2	93,848.2	17.9	70.2
Urban-Related Runoff/Stormwater	42.5	497.4

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New Hampshire TMDL Alternatives by Cause of Impairment 2006

Description of this table

NOTE: Click on the underlined "Number of TMDL Alternatives by Cause of Impairment " value to see a listing of those Causes of Impairment.
Cause of Impairment	Number of TMDL Alternatives	Rivers and Streams (Miles)	Lakes, Reservoirs, and Ponds (Acres)
Escherichia Coli (E. Coli)	28	42	218
Dioxin (Including 2,3,7,8-TCDD)	18	18	384
Iron	3	10
Copper	2	13
Dissolved Oxygen	1	4
Zinc	1	4
pH	1	5

Total: 54 TMDL Alternatives

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New Hampshire Previously Impaired Waters Now Attaining All Uses

No previously impaired waters reported as attaining all uses.

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New Hampshire Causes of Impairment for 303(d) Listed Waters

Description of this table

NOTE: Click on a cause of impairment (e.g. pathogens) to see the specific state-reported causes that are grouped to make up this category. Click on the "Number of Causes of Impairment Reported" to see a list of waters with that cause of impairment.
Cause of Impairment Group Name	Number of Causes of Impairment Reported
Mercury	5,211
pH/Acidity/Caustic Conditions	717
Pathogens	295
Organic Enrichment/Oxygen Depletion	234
Metals (other than Mercury)	128
Polychlorinated Biphenyls (PCBs)	119
Dioxins	83
Algal Growth	46
Cause Unknown - Impaired Biota	41
Toxic Organics	30
Pesticides	21
Salinity/Total Dissolved Solids/Chlorides/Sulfates	21
Nutrients	9
Other Cause	2
Sediment	2
Taste, Color and Odor	1

Total: 6,960 Causes of Impairment

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New Hampshire Cumulative TMDLs by Pollutant

This chart includes TMDLs since October 1, 1995.

Description of this table

NOTE: Click on the underlined "Pollutant" value to see associated listed waters for which a TMDL was developed. Click on the underlined "Number of TMDLs" value to see a listing of those TMDLs for the pollutant.
Pollutant	Number of TMDLs	Number of Causes of Impairment Addressed
Mercury	5,124	5,124
pH	356	357
Fecal Coliform	11	11
Chloride	4	4
pH, Low	3	6
Carbonaceous Bod	2	2
Escherichia Coli (E. Coli)	2	2
NH3-N	2	2
Phosphorus, Total	2	3
Biochemical Oxygen Demand (BOD)	1	2
Enterococcus Bacteria	1	1
Iron	1	1
NH3	1	2

Total: 5,510 TMDLs; 5,517 Causes of Impairment Addressed

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New Hampshire Cumulative Number of TMDLs

EPA Fiscal Year starts October 1 and ends September 30.

Description of this table

NOTE: Click on the underlined "Number of TMDLs Completed" value for a detailed list of the TMDLs for the fiscal year.
Fiscal Year	Number of TMDLs	Number of Causes of Impairment Addressed
2000	5	8
2001	3	3
2002	1	1
2003	2	2
2004	53	53
2005	20	20
2006	23	26
2007	160	160
2008	5,238	5,238
2009	4	4
2010	1	2

Total: 5,510 TMDLs; 5,517 Causes of Impairment Addressed

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