Skip common site navigation and headers
United States Environmental Protection Agency
Clean Watersheds Needs Survey (CWNS)
Contact Us | Print Version Search:
Begin Hierarchical Links EPA Home > Water > Wastewater > Clean Watersheds Needs Survey > Summary of 1996 Technical Information End Hierarchical Links

 

Summary of 1996 Technical Information

Appendix C:

NOTE: Some States did not update all of the technical data used to generate Tables C-1 through C-5.

Table C-1

1996 Clean Water Needs Survey

Number of Operational Treatment Facilities and

Collection Systems in 1996

Table C-1 summarizes the number of treatment facilities and collection systems in operation in 1996 in each State and U.S. Territory.

State Treatment

Facilities

 Collection

Systems

 State Treatment

Facilities

 Collection

Systems
Alabama 273 310 Nevada 55 58
Alaska 49 54 New Hampshire 84 115
Arizona 144 157 New Jersey 145 516
Arkansas 315 359 New Mexico 106 118
California 588 793 New York 517 929
Colorado 300 354 North Carolina 485 574
Connecticut 91 135 North Dakota 297 302
Delaware 17 35 Ohio 685 927
Dist. of Columbia 1 1 Oklahoma 497 514
Florida 268 317 Oregon 208 240
Georgia 379 486 Pennsylvania 740 1,410
Hawaii 25 25 Rhode Island 20 29
Idaho 166 191 South Carolina 207 246
Illinois 726 1,005 South Dakota 281 284
Indiana 393 447 Tennessee 246 310
Iowa 726 759 Texas 1,311 1,576
Kansas 576 608 Utah 108 182
Kentucky 236 288 Vermont 92 102
Louisiana 309 364 Virginia 242 345
Maine 141 174 Washington 258 329
Maryland 164 219 West Virginia 204 278
Massachusetts 122 216 Wisconsin 592 787
Michigan 391 645 Wyoming 103 120
Minnesota 511 634 Amer. Samoa 2 2
Mississippi 301 344 Guam 7 7
Missouri 652 708 No. Marianas 2 2
Montana 175 182 Puerto Rico 30 30
Nebraska 449 516 Virgin Islands 12 12
Total 16,024 20,670

Table C-2

1996 Clean Water Needs Survey

Number of Operational Treatment Facilities and Collection Systems

When All Documented Needs Are Met

Table C-2 summarizes the number of treatment facilities and collection systems planned to be in operation in each State and U.S. Territory when all documented needs are met.

State Treatment

Facilities

 Collection

Systems

 State Treatment

Facilities

 Collection

Systems
Alabama 436 483 Nevada 65 69
Alaska 58 61 New Hampshire 88 124
Arizona 184 206 New Jersey 153 553
Arkansas 370 430 New Mexico 116 132
California 643 869 New York 652 1,128
Colorado 315 382 North Carolina 543 741
Connecticut 104 161 North Dakota 297 302
Delaware 19 49 Ohio 797 1,137
Dist. of Columbia 1 1 Oklahoma 501 533
Florida 292 345 Oregon 216 253
Georgia 343 495 Pennsylvania 977 1,794
Hawaii 33 33 Rhode Island 22 33
Idaho 189 219 South Carolina 234 289
Illinois 819 1,125 South Dakota 290 293
Indiana 434 510 Tennessee 254 331
Iowa 739 773 Texas 1,540 1,849
Kansas 600 648 Utah 122 208
Kentucky 317 392 Vermont 96 110
Louisiana 426 492 Virginia 298 447
Maine 161 198 Washington 271 353
Maryland 189 322 West Virginia 452 631
Massachusetts 137 257 Wisconsin 644 982
Michigan 441 740 Wyoming 103 120
Minnesota 532 665 Amer. Samoa 2 2
Mississippi 373 470 Guam 6 7
Missouri 716 842 No. Marianas 4 4
Montana 193 211 Puerto Rico 30 30
Nebraska 454 525 Virgin Islands 12 12
Total 18,303 24,371

Table C-3

1996 Clean Water Needs Survey

Number of Treatment Facilities by Flow Range

Table C-3 shows, for five flow ranges, the number of treatment facilities in operation in 1996 and projected to be in operation when all documented needs are met. The number of facilities and their cumulative flow (in millions of gallons per day) are shown for each of the flow ranges.

TREATMENT FACILITIES IN OPERATION IN 1996
Existing Flow Range (mgd) Number of

Facilities

 Total Existing Flow

(mgd)
0.000 to 0.100 6,444 287
0.101 to 1.000 6,476 2,323
1.001 to 10.000 2,573 7,780
10.001 to 100.000 446 11,666
100.001 and greater 47 10,119
Other* 38 ­
Total 16,024 32,175
TREATMENT FACILITIES IN OPERATION WHEN ALL DOCUMENTED NEEDS ARE MET
Design Flow Range (mgd) Number of

Facilities

 Total Future Design

Flow Capacity (mgd)
0.000 to 0.100 6,449 320
0.101 to 1.000 7,522 2,794
1.001 to 10.000 3,528 11,478
10.001 to 100.000 727 19,093
100.001 and greater 69 15,102
Other* 8 ­
Total 18,303 48,787

*Note: Flow data were unavailable for these facilities.

Table C-4

1996 Clean Water Needs Survey

Number of Treatment Facilities by Level of Treatment

Table C-4 shows, by level of treatment, the number of treatment facilities in operation in 1996 and projected to be in operation when all documented needs are met. The number of facilities, their cumulative capacities (in millions of gallons per day), and the population served are shown for each level of treatment.

TREATMENT FACILITIES IN OPERATION IN 1996
Level of Treatment Number

of

Facilities

 Present

Design

Capacity

(mgd)

 Number of

People

Served

 Percent of

U.S.

Population
Less than Secondary Treatment 176 3,054 17,177,492 6.5
Secondary Treatment 9,388 17,734 81,944,349 31.0
Greater than Secondary Treatment 4,428 20,016 82,928,182 31.4
No Discharge 2,032 1,421 7,660,876 2.9
Total 16,024 42,225 189,710,899 71.8
TREATMENT FACILITIES IN OPERATION WHEN ALL DOCUMENTED NEEDS ARE MET
Level of Treatment Number

of

Facilities

 Future

Design

Capacity

(mgd)

 Number

of People

Served

 Percent of

U.S.

Population
Less than Secondary Treatment 61 601 5,513,147 1.8
Secondary Treatment 9,738 17,795 102,321,429 32.9
Greater than Secondary Treatment 6,135 28,588 152,724,017 49.0
No Discharge 2,369 1,803 14,163,722 4.5
Total 18,303 48,787 274,722,315 88.2

Table C-5

1996 Clean Water Needs Survey

Number of Combined Sewer Facilities

Table C-5 presents the number of combined sewer facilities identified during the 1996 CWNS.

State Number of

Facilities

 State Number of

Facilities
Alabama 0 Nevada 0
Alaska 1 New Hampshire 5
Arizona 0 New Jersey 37
Arkansas 0 New Mexico 0
California 4 New York 64
Colorado 1 North Carolina 1
Connecticut 10 North Dakota 0
Delaware 2 Ohio 110
Dist. of Columbia 1 Oklahoma 0
Florida 0 Oregon 5
Georgia 6 Pennsylvania 110
Hawaii 0 Rhode Island 3
Idaho 0 South Carolina 0
Illinois 104 South Dakota 3
Indiana 119 Tennessee 3
Iowa 16 Texas 0
Kansas 3 Utah 0
Kentucky 24 Vermont 20
Louisiana 0 Virginia 4
Maine 46 Washington 16
Maryland 8 West Virginia 57
Massachusetts 28 Wisconsin 3
Michigan 48 Wyoming 0
Minnesota 2 Amer. Samoa 0
Mississippi 0 Guam 0
Missouri 12 No. Marianas 0
Montana 1 Puerto Rico 0
Nebraska 3 Virgin Islands 0
Total 880

Back to the Table of Contents

 
Begin Site Footer

EPA Home | Privacy and Security Notice | Contact Us