EPA 440-9-76-027 SEWAGE FACILITIES CONSTRUCTION REPORT 1975 ------- SEWAGE FACILITIES CONSTRUCTION REPORT 1975 OFFICE OF WATER PLANNING AND STANDARDS MONITORING AND DATA SUPPORT DIVISION WASHINGTON, D.C. 20460 \ ------- CONTENTS INTRODUCTION 1 SUMMARY 2 CATEGORIES OF FACILITIES CONSTRUCTION 3 BASIC STATISTICS 4 NATIONAL TRENDS 4 AWARDS BY STATE 4 AWARDS BY BASIN 4 STATISTICAL VARIATIONS 5 FIGURES FIGURE 1. Annual contract award dollars by year, 1952-1975 6 2. Contract award categories (share of award dollars), 1971-1975 7 3. U.S. population density, by state, 1975 8 4. Per capita contract awards, by state, 1975 8 TABLES TABLE 1. Annual contract awards1952-1975 9 2. Contract award trends, 1957-1975 10 3. Contract awards for three 6-year periods, 1958-1975 10 4. Contract awards by state, 1975 11 5. Contract award dollars by basin, 1957-1975 12 6. Contract awards by basin, 1975 12 ------- APPENDIX A TABLE A-1. Percentage changeannual contract award dollars per capita, 1957-1975 (constant dollars) 14 A-2. Percentage changeannual contract award dollars per capita, 1957-1975 (current dollars) 14 A-3. Percentage changeannual contract award dollars, 1952-1975 (current dollars) 15 A-4. Percentage changeannual contract award dollars 1952-1975 (constant dollars) 15 A-5. Percentage changedistributed sewage treatment award dollars, 1952- 1975 (current dollars) 16 A-6. Percentage changedistributed collecting sewers award dollars, 1952- 1975 (current dollars) 16 A-7. Contract awards (distributed) by states for year 1975 17 A-8. Contract awards by population size group, 1975 18 A-9. Contract awards by size of contract, 1975 18 A-10. Annual contract awards for 1971-1975, by state 19 A-11. Annual contract awards for 1971-1975, by basin 20 A-12. Percentage change in total contract awards by state, 1971-1975 21 A-13. Percentage change in total contract awards by major basin, 1971-1975 _ 26 ------- ------- INTRODUCTION This publication contains a summary and analysis of contracts awarded during 1975 for constructing sewage facilities. Previous reports in this series were published annually for the years 1952 through 1971 and in a single report for the years 1972, 1973, and 1974. The basic information for this report was collected and recorded, under contract, by the F.W. Dodge Division of McGraw Hill Information Systems Company.* Due to financial limitations, the U.S. Environmental Protection Agency is not planning to continue this publication. This is the last report in this series. 'This material is disseminated under the auspices of the U.S. Environmental Protection Agency. No Offices of the United States Government assume any liability for its content or the use thereof. ------- SUMMARY Analysis of the contracts awarded in 1975 and comparison to those awarded in previous years, result in the following principal observations. The Number of Contracts Awarded in 1975 Showed a Continuing Increase in Actual Dollars for Facility Construction Since 1952 In 1975, contract awards for sewage facilities construction totaled 4.4 billion dollars. This represents 13.3 percent of the total dollars (33 billion) spent on sewage facilities construction since 1952. When the dollar is converted to a 1957-1959 base to adjust for inflation, the contract awards for sewage facility construction were 1.744 billion dollars. This amount accounted for 7.5 percent of the total constant dollars (23.101 billion) spent on facility construction since 1952. Since 1972, 14.4 billion dollars were spent on sewage facilities construction. This four-year figure represents 44 percent of the total dollars spent on sewage facilities construction since 1952. Using a constant dollar, 6.971 billion was spent since 1972. This four year value makes up 30.2 percent of the total constant dollars spent on facility construction since 1952. Since 1974, Per Capita Contract Awards Showed a Decline in Amount Spent for Sewage Facilities Construction The annual per capita contract awards measured in constant dollars (1957-1959 base) increased 129.1 percent from 1957 to 1975. In 1975 however, the total annual awards, as measured in constant dollars show an 8.6 percent decrease from 1974. Also, the annual per capita awards measured in constant dollars decreased 10.2 percent from 1974 to 1975 (Figure 1 and Tables A1-A4). This may be indicative of a stabilization in the amount spent on sewage facilities construction after population increases and inflation are accounted for. Sewage Facilities Construction Accounted for 60 Percent of All Contracts Awarded in the Previous Five Years Since 1971, sewage treatment facilities have comprised about 60 percent of all sewage facility construction (Figure 2). The remainder (40 percent) of the construction was for collecting sewers and combination projects. ------- CATEGORIES OF FACILITIES CONSTRUCTION Contract awards for sewage facilities construction in 1975 totaled 4.4 billion dollars (Tables 1 and 2). Of this total, 2.925 billion dollars or 66.5 percent was awarded for treatment facilities, 1.016 billion dollars or 23.1 percent for collecting sewers, and the remaining 10.4 percent, 459 million dollars, was for combination projects where the breakdown in costs between the two categories was not specified. Combination group costs (Tables 1, 2 and A-7) were apportioned between sewage treatment facilities and collecting sewers in the same ratio as those for which such descriptions are available, making the figures 3.204 billion dollars and 1.196 billion dollars, respectively. Sewage Treatment Facilities: This category which accounts for 67 percent of the total spending includes new plants (treatment plants, stabilization and oxidation ponds, lagoons and leeching systems, etc.) additions and/or replacements to existing plants, and an "other" classification which includes intercepting sewers, outfalls and pumping stations. Collecting Sewers: This category includes lateral sewers, trunk sewers, extension force mains, lift stations on collecting or trunk lines, and combined sewers. Storm sewers are not included. In cases where combined collecting and storm sewers were part of the same contract and the costs could not be separated, one half of the contract award was assigned to the collecting sewers category. Combinations: This category consists of projects where the breakdown in costs between sewage treatment facilities and collecting sewers was not specified. More detailed data within these categories are presented in Appendix A. ------- BASIC STATISTICS National Trends Annual contract awards for sewage facilities construction have increased steadily since 1957 on both a total dollar and per capita dollar basis. When the dollar is converted to a 1957-1959 base to adjust for inflation this trend is observed, except in 1975, where a decline is observed in terms of annual per capita awards as measured in constant dollars. The total current dollars for contract awards increased 10.6 percent from 1974 to 1975. When these dollars were adjusted for inflation, however, the percentage change was a decrease of 8.6 percent (Table 1). The rate of increase in contract award dollars was higher over the last six years than it was in the preceding two six-year periods. This trend can be noted by taking the six year averages of the data for the last 18 years. The effects of year-to-year fluctuation are reduced by this method of analysis. The growth in per capita awards using constant dollars was 65.2 percent from the 1964-1969 period to the 1970- 1975 period, compared to a 10.5 percent growth from the 1958-1963 period to the 1964-1969 period (Table 3). Awards by State The State of New York had the highest total awards for 1975 ($624 million) and the highest awards for each of the two major categories: treatment facilities ($476 million) and collecting sewers ($113 million). Those states having contracts in excess of $200 million were: California $287 million), Florida ($256 million), Indiana ($243 million), Pennsylvania ($225 million) and Illinois ($212 million). Alaska had the highest total per capita awards in 1975 ($71.91) and the highest per capita awards ($71.20) for sewage treatment facilities. Rhode Island had the highest per capita awards ($16.76) for collecting sewers. With the exception of Alaska, a state with special technical problems, the states with the highest per capita total awards were as follows: Delaware ($59.35), Indiana ($45.84), Rhode Island ($45.33) and New Hampshire ($40.88). Indiana was the only state to rank in the top five states in the categories of both total contract award dollars and per capita award dollars. Figures 3 and 4 show a comparison between population density and per capita awards for sewage facilities construction by state. Awards by Basin Table 5 shows the contract awards for sewage treatment facilities construction by basin for 1957-1975. ------- The Northeast basin had the highest total awards in 1975 (1.067 billion) (Table 6). The per capita awards for each of the 19 United States drainage basins for 1975 were based on the 1971 population for these basins, since these populations were the latest available. The basin with the highest per capita awards in 1975 for sewage facility construction was Alaska with an annual per capita award of $84.38. Following Alaska, the basins with highest per capita awards in 1975 were Missouri ($47.80) and Hawaii ($40.47). Statistical Variations Thirteen tables presenting data in different formats are included in Appendix A. Of special interest are Tables A-1 through A-6 which show percentage changes in annual contract awards. Tables A-1 and A-2 show the percentage change in annual contract award dollars per capita for 1957-1975 as measured in constant (1957-1959 base) and current dollars. Tables A-3 and A-4 show the percentage change in annual contract award dollars for 1952-1975 as measured in current and constant dollars (1952-1959 base). Tables A--5 and A-6 indicate the percentage change in distributed sewage treatment and collecting sewers as measured in actual dollars. Table A-7 shows the total contract awards by state, broken down by sewage treatment facilities and collecting sewers after the costs of the combination category were apportioned in the same ratio as those for which descriptions were available. Tables A-8 and A-9 show contract awards for 1975 arranged by population size and dollar size groups for sewage treatment, collecting sewers and combinations. Table A-10 shows the annual total contract awards by state since 1971. Table A-11 shows the annual total contract awards by major basin since 1971. Tables A-12 and A-13 show the annual percentage change in the dollars spent on sewage facilities construction by state and major basin since 1971. ------- 4800 Figure 1 ANNUAL CONTRACT AWARD DOLLARS BY YEAR, 1952-1975 4400 4000 3600 3200 2800 2400 2000 Actual Dollars 1952-1975 Total $33,047,000,000 1600 1200 800 400 /- " Adjusted for Inflation (1957-1959 Dollars) 1952-1975 Total $23,101,000,000 J I I 1 J L i i I I I I ' I CM *> en S en LO LO en to LO CD LO en oo LO en en LO CD o ID en to en CM CD en ro CO en 5t LO CO IO en en en CD en CO CO O) en CO en o r-- en i- (N 1^. (^ en en ro 01 CD ------- FIGURE 2 CONTRACT AWARD CATEGORIES (Share of award dollars) 1971-1975 LATERALS TRUNKS / COMBINATIONS LIFT STATIONS 13.90/ NEW PLANTS, ADDITIONS AND REPLACEMENTS INTERCEPTING SEWERS, OUTFALLS AND PUMPING STATIONS ,/' 1971 NEW PLANTS, ADDITIONS AND REPLACEMENTS INTERCEPTING SEWERS, OUTFALLS AND PUMPING STATIONS / 1972 NEW PUNTS, ADDITIONS AND REPLACEMENTS x INTERCEPTING SEWERS, OUTFALLS \ AND PUMPING STATIONS / 1973 / \ / COMBINATIONS \ 14.3% NEW PLANTS, ADDITIONS AND REPLACEMENTS INTERCEPTING SEWERS, OUTFALLS AND PUMPING STATIONS / 1974 NEW PLANTS, ADDITIONS AND REPLACEMENTS INTERCEPTING SEWERS, OUTFALLS AND PUMPING STATIONS ------- Figure 3 DEPOPULATION DENSITY, BY STATE, 1975 POPULATION DENSITY PER SQUARE MILE II 0-25 %% 2575 75-150 OVER 150 Figure 4 PER CAPITA CONTRACT AWARDS, BY STATE, 1975 PER CAPITA CONTRACT AWARDS (Dollars) CD 0-10 '///// 10-22 '': 22-34 OVER 34 ------- TABLE 1 Annual contract awards1952-1975 (Millions of dollars! Year 1952__. 1953 . . 1954 1955 1956 1957 1958 __ 1959 1960. 1961 . .. 1962 1963 1964 1965 1966 1967 1968 . 1969 1970 _ 1971 1 972 ..... 1973 1974 ... 1975__. Grand Total Sewage treatment Current 137 187 229 201 354 351 389 349 359 449 545 679 514 522 553 597 867 825 1,085 1,453 2,016 2,305 2,904 3,204 21,074 1957- 1959 178 231 276 232 385 362 385 336 339 419 505 612 459 458 469 497 694 611 755 909 1,172 1,262 1,421 1,282 14,249 Collecting sewers Current 225 286 244 301 305 247 310 336 359 380 320 405 396 356 399 448 582 684 738 674 747 962 1,073 1,196 11,973 1957- 1959 296 353 294 345 331 254 310 320 339 352 291 358 244 304 330 360 449 492 493 403 402 482 488 462 8,752 Total 1957- Current 1959 362 473 473 502 659 598 699 685 718 829 865 1,084 910 878 952 1,045 1,449 1,509 1,823 2 127 2,763 3,267 3,977 4,400 33,047 474 584 570 577 716 616 695 656 678 771 796 970 803 762 799 857 1,143 1,103 1.248 1,312 1,574 1.744 1.909 1,744 23,101 NOTES 1 Constant dollars on a 1957-1959 base were computed as follows Sewers from PHS Sewer Construction Cost Index (PHS Publication 113?i sewage treatment trorn PHS Sewage Treatment Plan! Construction Cost Index (PHS Publication 1069i 2 The Public Health Service sewage treatment data prior to 1957 are composed of identified contracts only Beginning with 1957 the figures include an amount apportioned to sewage treatment works trorn the combination c.ontracts 3 Data on collecting sewers pnoi tu 1957 are obtained by subtracting Public Health Service sewage treatment data from the U S Department of Commerce sewer data which includes sanitary and storm systems as well 3s sewage treatment works Beginning with 1957 the data to< collecting sewers were assembled bv the Public Health Seivice and do not include storm sewers ------- TABLE 2 Contract award trends, 1957-75 Total number of awards ' Total award dollars (millions) Total award dollars (millions, 1957-1959 base) Award dollars per capita Award dollars per capita (1957-1959 base) __ Sewage treatment award dollars (millions) New plant award dollars (millions) 2 Collecting sewers award dollars (millions) 1957 3.521 598 616 3.47 3.57 351 130 247 1958 4,208 699 695 3.99 397 389 128 310 1959 4,320 685 656 3.84 3.68 349 95 336 1960 4,542 718 678 3.96 3 74 359 97 359 1961 4,733 829 771 4.50 4 19 449 101 380 1962 4,794 865 796 4.62 4.25 545 117 320 1963 5,307 1,084 970 5.73 5.13 679 216 405 1964 5,301 910 803 4.73 4.17 514 144 396 Total number of awards 1 _._ Total award dollars (millions) Total award dollars (millions, 1957-1959 base) Award dollars per capita __-_ . Award dollars per capita (1957-1959 base) Sewage treatment award dollars (millions) New plant award dollars (millions) 2 Collecting sewers award dollars (millions) 1965 5,211 878 762 4.52 392 522 125 356 1966 5,202 952 799 4.85 4.07 553 145 399 1967 5,278 1,045 857 5.25 4.31 597 133 448 1968 5,622 1 449 1,143 7.20 5.68 867 194 582 1969 6,258 1,509 1,103 743 5.43 825 234 684 1970 5,140 1,823 1,248 8.89 6.09 1,085 277 738 1971 5.210 2,127 1,312 10.33 6.37 1.453 364 674 1972 5,321 2,763 1 574 13.27 7,56 2,016 460 747 Total number of awards 1 .__ Total award dollars (millions) _. Total award dollars (millions, 1957-1959 base) Award dollars per capita .. Award dollars per capita (1957-1959 base) Sewage treatment award dollars (millions) New plant award dollars (millions) 2 Collecting sewers award dollars (millions) 1973 6,648 3,267 1 744 15 56 8 31 2,305 626 962 1974 6,429 3,977 1,909 18.95 9.11 2,904 970 1,073 1975 6,257 4,400 1.744 2065 8.18 3,204 1,386 1,196 99.302 30,578 20,180 Total TABLE 3 Contract awards for three 6-year periods, 1958-1975 Average award dollars (millions) Percentage change from previous period Average award dollars (million, 1957-1959 base) Percentage change from previous period Average per capita award dollars Percentage change from previous period Average per capita award dollars (1957-1959 base) Percentaae chanae from orevious oeriod 1958-1963 813 761 4.44 4 16 1964-1969 1,124 38.0% 911 19.7% 5.66 27.5% 4 60 10.5% 1970-1975 3,060 172.2% 1,588 74.3% 14 61 158.1% 7 60 65.2% 10 ------- TABLE 4 Contract awards by state, 1975 Alabama Alaska Arizona Arkansas California Colorado Connecticut Delaware District of Columbia Florida Georgia Hawaii Idaho Illinois Indiana Iowa __ Kansas Kentucky Louisiana Maine _ Maryland Massachusetts Michigan Minnesota Mississippi Missouri. Montana Nebraska Nevada _. New Hampshire New Jersey New Mexico New York North Carolina North Dakota Ohio _. Oklahoma Oregon Pennsylvania Rhode Island South Carolina South Dakota Tennessee Texas Utah Vermont. Virginia Washington West Virginia Wisconsin Wyoming TOTALS STATE ia No 38 7 48 54 408 69 178 45 7 205 118 24 10 280 152 138 133 / 3 86 55 247 164 233 Total Dollars 49.149.528 25.315,065 36.855.714 29.836241 286.610 978 56,086,680 60.280.869 34.365 860 Per capita 1359 71 91 16.57 14 10 Sewage Treatment No 13 6 7 15 1352 109 2213: 26 19 47 : 20 59 35 4 12.339.437 17 23 3 256.272.769 3066 74 48.737.590 9 89 35 32,383,686 37 43 9,305,441 11 34 212,000.722 ' 19 02 243 495.857 45 84 49.475.433 26.519.273 59595.942 39.073.301 26 304.224 145.788.714 111.724.357 196 760.928 277 i 153,427.610 56 36.728.858 138 ! 125.029.482 17 23 11 69 1754 10 30 24 83 35 57 19 17 21 48 39 07 15 65 2625 9 5204.807 695 114 16 35 182 24 342 129 54 287 51 / / 358 31 46 45 97 372 9 17 216 79 36 378 10 6257 14,954 539: 9 67 9.086 706 15 34 33.442.750 40 88 199 525.829 27 27 13.562 974 11 82 624 490 951 : 34 46 50948,368 934 8 264.409 13 01 164.148.351 |15 25 26809068; 988 22.064.391 I 964 225 458 519 19 06 42 022.898 45 33 9.480.905 3 36 3.422.060 5 01 64 542.767 165.175,795 6 443.805 10.502,524 120568,579 73.662 965 31.020.225 104 406.079 7.724.174 4 400 398.997 15 41 13 49 Dollars 43 839.478 25.064 356 Per capita 12 13 71 20 27.279.362 12 26 21.553.486 10 18 219.660 873 10 36 45323.664 17 88 17.018 770 17,811.941 12 185.400 203.551 775 17 816,405 16 21.827.000 549 30 76 17 01 24 35 Collecting Sewers No 23 1 36 Dollars 5.149.891 250 709 Per capita 1 42 71 Combinations No. '2 0 6811.966 306 5 26 7.235.953 341 13 Dollars 160.159 0 2.764 386 1,046.802 Per capita ~04~ 00 1 24 49 269 -56.971.022 268 30 9,979083,' 47 31 8.368.024 330 12 2.394.992 94 151 40024916 12 93 7 3 237,183 1 04 35 ' 9.272.530 16 01 6 7.281 389 12 57 4 154,037 ,21 , 0 ! 0 00 112 46790.965 3 61 67 20 583 167 2523 5 7 858.308 9 58 94 3 / 128.336,649 212.266.550 ^ 5 59 19 5.930.029 70 4 17 16 10 338,018 2 09 10 325.000, 11 93 1 231.686 ' 26 3 720. 770 1 87 2 726,363 11 51 156 40 118.886 359 , 30 43.545.187 39 96 101 22.084.1271 4.15 : 14 9.145.180 36 40 100.156 13 97 ] 88 7 449 285 14 16.120839 7 11 11 28351.420 834 108 i 8 162 401 51 12.866916 12 19 608 258 5 17 57 16 242.848 17 17.054.888 22 . 103,894 052 35 34 79 840.235 82.075.907 19 69 881 934 11 : 25.218 773 45 105.355.515 1 4 351 322 24 ; 8 692 562 7 5.026.676 11 16.881.557 59 ! 149.724.037 2 96 29 ^ 282.040 476420.902 18 152 336 4 455.330 49 90,293,918 9 20.252,396 18 108 11 8 3 16 74 5 34 6 22 29 24 27 20 78 1720 2266 2065 20 64 6 38 24 14 49 5 1.394 14.039.997 119.312.005 26.198 732 2 123 996 358,277 25.007364 16 10 25 35 13 69 8 96 17 79 10 74 22 11 581 5 62 849 2063 20.46 24 2629 3 33 7 01 839 7 46 6 13 10 08 28 26 -?£- 52 5 97 99.915 655, 8 16 4.830.189 3 901 134 84.717.143 48.167 657 15.493.224 72.751.178 5 162.035 2.925.407.656 4 00 8 28 17 05 13 59 8 59 15.79 13 80 13 72 35 178 5.674.816 26 276.931 114 27.742.440 170 104,054,862 176 14,738.845 29 2586.684 83 : 16.206.570 6 : 664.592 83 ; 5 495.698 5 1 218 480 17 10.088693 2 59 14 1,925 992 3 60 11 2.236 033 3 78 11 4 28 17 18.377.606 88 3 90 1 72 .67 98 541 3222.195 84 535 3 3,574.520 337 641 47 15,617731 3.81 4 76 i 15 4 141 682 71 11 36 29 3 75 82 1 10 16 3 40 10 88 2 3 55 7 2 05 4 12 33 7 116 29,987105 409 9 216 ^f 37 218 34 50 205 19 32 32 63 214 3 8 157 42 13 258 4 4.029 3 945.653 3 43 113,316.694 625 / 13 30 17 068.936 3 13 23 3.131.7721 4 93 10 69255.185 643 3,948 817 1 45 6 450.744 2 81 69.601.364 588 15.539.272 16 76 5.063.833' 1 79 1,832.354 268 22 593,995 5 39 41 825,242! 3 41 1,613,6161 1 33 1 232,630 27,594.014 14 256.612 9.730,103 21 123,640 2.087 853 1,015.531.458 2 61 5 55 4 02 5 39 4 58 558 4 76 20 8 9 45 1 6 10 18 84 0 3 21 13 9 71 1 834 10,630 159 1 16 68.806,831 1752 8.923.401 3.467,397 188,893 766 279 2841.550 6,472.500 19 814 687 9.335,281 34,753 355 15,727.096 677,307 4,599,248 380 72 25 49 4 79 791 2 70 8 13 1.91 2 88 1 06 42 2.607,855 96 1,573650 68 36.545.150 308 284 894 : 30 2,293.076 1 231,429 81 1 80 16 941 408 4 04 23.434.898 1 91 0' 00 5368,760 8 257 422 11.39 1 66 11.238.696 317 5 796.898 10.531,261 474286 459.459.883 3 21 2 28 1 26 2 15 PERCENTAGE OF TOTAL 66 48% 10 44% ------- - TABLES Contract award dollars by basin, 1957-1975* Basin Northeast North Atlantic Southeast Tennessee River Ohio River Lake Erie Upper Mississippi Western Great Lakes Missouri River Southwest-Lower Mississippi __ Colorado River Western Gulf Pacific Northwest _ California Great Basin Alaska^ _ Hawaii TOTALS 1957 10 59 22 4 54 14 3fi 14 11 16 4 9 8 59 8 328 1958 35 63 31 7 57 7 37 22 14 23 4 18 11 28 2 359 1959 20 50 35 6 62 7 47 22 13 14 3 9 9 25 3 1 326 1960 23 70 32 6 47 9 28 21 17 18 4 16 9 23 5 1 2 331 961 14 fifi 30 5 60 11) 28 28 28 18 3 11 17 55 3 ? 1 381 1962 38 77 35 3 55 5 4? 74 77 4 16 30 51 2 < 1 6 3 463 1963 60 116 57 6 58 1? 85 34 2? 48 12 19 39 18 7 <- 1 R 595 1964 37 87 53 11 48 11 40 30 41 28 7 21 20 15 6 1 5 461 1965 66 48 56 11 56 14 67 24 26 15 6 22 27 ?8 4 1 3 474 1966 66 58 47 6 41 10 74 42 32 28 6 18 22 54 8 < 1 5 517 1967 81 99 60 9 46 17 75 16 19 29 6 18 19 36 12 < 1 4 546, 1968 182 100 76 14 87 20 85 47 36 30 6 23 17 39 6 4 3 775 1969 ?66 59 69 11 38 26 79 80 19 33 15 28 15 31 2 5 776 1970 280 109 73 10 62 26 104 129 12 35 6 31 16 58 4 8 < 1 963 1971 426 94 118 10 117 35 128 163 16 36 < 1 22 48 88 3 3 1,307 1972 829 97 142 4 117 29 142 202 37 19 2 51 45 33 2 3 < 1 1.754 1973 614 190 167 29 175 56 147 79 40 63 22 75 44 145 5 13 32 1.896 1974 504 292 273 16 206 156 249 146 155 70 21 80 n 250 5 1 21 2.519^ 1975 758 334 302 20 296 93 212 175 167 93 36 96 70 199 30 25 22 2,928 Grand Total 4,309 2,070 1,672 188 1,682 557 1,705 1,348 727 620 179 597 561 1,186 115 68 115 17,699 *Sewage treatment facilities only. TABLE 6 Contract awards by basin, 1975 Drainage Basin Northeast North Atlantic Southeast Tennessee River . Ohio River . _ Lake Erie Upper Mississippi 'Western Great Lakes .__ Lake Michigan Lake Huron Lake Superior Missouri River South Central Lower Mississippi Colorado River Western Gulf Pacific Northwest California Great Basin Alaska . _ - - Hawaii TOTALS No. 930 789 575 57 524 276 844 411 355 40 16 410 370 83 369 166 392 30 7 24 6,257 Total Dollars 1,067,126,672 517,045,982 438,613,142 44,118,355 432,044,703 216,216,343 389,547,460 250,201,189 187,456,449 10.583,809 52,160,931 205,576,509 156,733,620 53,106,985 170.195,253 105,032,797 262,059,189 35,082,047 25.315,065 32,383,686 4 400,398,997 Per" capita 25.71 2707 17.40 13.78 21.17 2275 21.05 19.85 .00 00 .00 47,80 12.84 23.08 15.33 1641 19 55 26.98 8438 40.47 21.77 No 236 138 168 14 118 51 168 60 49 9 2 97 66 21 69 47 107 12 6 16 1,394 Sewage Treatment Dollars 758,493,240 333,992,261 301,899,078 19,944 500 295,603,255 92,739,086 211.591.651 174,677 091 119,688,321 6,104,031 48,884,739 166,539,982 92,651,676 35,916,401 95,545,658 70,065,962 199,336,409 29,520,050 25,064,356 21,827,000 2,925,407,656 Per capita 18.27 17.48 11.98 6.23 14 49 9.76 11.43 13.86 .00 .00 .00 38.73 7.59 15.61 8.60 10.94 14.87 22.70 83.54 27.28 14.47 No. 629 536 332 32 349 203 520 284 246 27 11 270 242 49 208 95 255 17 1 7 4,029 Coilecting Sewers Dollars 235,527,662 117,840,303 94,653,344 16,386,404 93,953,582 116,409,772 62,444,536 58.798.234 54,454,963 3,903,949 439,322 31,159,308 45,135,881 10,043,250 43,118,301 21,428.126 52,743,697 5,313,349 250,709 10.325,000 1,015,531,458 Per capita 5.67 6.16 3.75 5.12 4.60 12.25 3.37 4.66 .00 .00 .00 7.24 3.69 4.36 3.88 3.34 3.93 4.08 .83 12.90 5.02 No. 65 115 75 11 57 22 156 67 60 4 3 43 62 13 92 24 30 1 0 1 834 Combinations Dollars 73,105,770 65,213,418 42,060,720 7.787,451 42,487,866 7,067,485 115,511,273 16,725,864 13,313,165 575,829 2,836,870 7,877,219 18,946,063 7,147,334 31,531,294 13,538,709 9,979,083 248,648 0 231,686 459,459,883 Per capita 1.76 341 1.66 2.43 2.08 .74 6.24 1.32 .00 .00 .00 1.83 1.55 3.10 2.84 2.11 .74 .19 .00 .28 2.27 PERCENTAGE OF TOTAL 'Aggregate of lakes Michigan, Huron, and Superior. "Based on 1971 basin population 66.48°" 23.07° 10.44°' ------- APPENDIX A 13 ------- TABLE A-1 Percentage changeannual contract award dollars per capita, 1957-1975 (constant dollars) 1957 1958 1959 1960 1961 1962 1963 1964 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974 1975 1957 _ 1958 11 2 1959 3 1 - 7.3 1960 48 -5 8 1 6 1961 174 5 5 13.8 12 0 1962 19 0 7 n 1S S 13 fi 1 4 1962 19 0 7.0 15 5 13 6 1.4 1963 43.7 292 394 37.2 22 4 : 20.7 1964 16.8 5.0 13 3 11.5 - .5 1.9 18 7 1965 9.8 -1.2 6.5 48 -65 - 7.8 23.6 6.0 1966 14 0 2.5 10.6 8.8 2.9 -42 20.7 2.4 3.8 1967 207 8.5 17 1 15.2 29 1.4 160 34 9.9 5.9 1968 59.1 43 1 54.3 51 9 35.6 33.6 108 36.2 44 9 395 31.8 1969 52.1 36 8 47.5 452 29.6 278 5.8 30.2 38.5 33.4 26.0 -4.4 1970 70.6 534 655 62.8 45.3 43.3 18.7 46.0 553 49 6 41.3 72 12.2 1971 784 60 4 73 1 70.3 52.0 49.9 24.2 528 62 5 56.5 47 8 12.1 17 3 4.6 1972 111.8 90 4 105.4 102.1 80.4 77.8 47.4 81.3 929 85.8 754 33.1 39.2 24.1 18.7 1973 132.8 109.3 125.8 122.2 98.3 95.5 62.0 99.3 1120 104.2 62.8 46.3 3.0 36.5 30.5 9.9 1974 155 2 129.5 147 6 143.6 117.4 114 4 77.6 118.5 132.4 123.8 1114 60.4 67.8 49.6 43.0 20 5 9.6 1975 129.1 1060 122.3 118.7 952 92.5 59.5 96.2 108.7 101.0 89.8 44 0 50.6 34.3 28.4 8.2 -1.6 -102 TABLE A-2 Percentage changeannual contract award dollars per capita, 1957-1975 (current dollars) 1957 1958 1959 1960 1961 1962 1963 1964 1965 1966 1967 1968 1969 1970 . . .... 1971 1972 1973 1974 1975 1957 1958 158 1959 105 3.7 1960 14 1 7.5 31 1961 297 12.8 152 136 1962 33.1 15.8 20 3 166 2 7 1963 65.1 436 492 44 7 27.3 24.0 1964 363 185 23.2 194 5.1 23.8 17.5 1965 30.3 13.3 17 7 14.1 4 4 2 2 21 1 4 4 1966 388 21 6 263 22.5 78 50 15.4 2.5 7.3 1967 51.2 31.6 367 32 6 16.7 13.6 84 11.0 16.1 8.2 1968 107.5 804 875 81 8 60.0 55.8 25 7 52.2 59.3 48 4 37.1 1969 114.1 86.2 93.4 876 65.1 608 29.7 57 1 64 4 53.1 41.5 -3.2 1970 156 2 122.8 131.5 124.5 97.5 924 55.1 87 9 96.7 833 693 23.4 19.7 1971 197 7 158 9 1690 60,8 129.5 123 6 803 118 4 128.5 112.9 968 43.5 39.0 16.2 1972 282.4 232.6 245.6 235.1 194.8 187.2 131.6 1805 193.6 1736 152.7 84.3 786 49.3 285 1973 348.4 290.0 305.2 292.9 245.8 236.8 171.8 228.9 244.2 220.8 196.4 116.1 109.4 75.0 50.6 17.3 1974 446.1 374.9 393.5 378.5 321.1 310.2 230 7 300.6 319.2 290.7 261.0 163.2 155.0 113.2 83.4 42.8 22.8 1975 495.1 417.5 437.8 421.5 358.9 3470 260.4 336.6 356.9 325.8 293.3 186.8 177 9 132.3 99.9 55.6 32.7 9.0 ------- TABLE A-3 Percentage changeannual contract award dollars, 1952-1975 (current dollars) 1952 _.. 1953 _. 1954 1955. 1956 1957 1958 1959 1960 1961 1962 1963 . 1964 1965 __ 1966 1967 1968 1969 1970 1971 1972 1973 1974 1975 1952 1953 307 1954 30.7 0.0 1955 38.7 6.1 6.1 1956 82.0 39.3 393 31.3 1957 65.2 264 26.4 19.1 -9.3 1958 93.1 47.8 478 392 1 169 1959 89.2 44 8 44.8 36.5 3.9 14 6 -2.0 1960 98.3 51.8 51.8 430 90 20 .1 2.7 48 1961 129.0 75.3 75 3 65.1 -25.8 38.6 18.6 21 0 15.5 1962 139.0 82.9 82.9 72.3 31.3 44.6 237 263 20.4 4.3 1963 199.4 129.2 129.2 115.9 64 4 81.3 55.1 58.2 51 0 30 8 253 1964 151.4 924 92.4 81.3 38.1 52 2 30.2 328 26.7 9.8 5.2 -16.1 1965 142.6 85.6 85.6 74.9 332 46.8 25.6 28.2 22.3 5.9 1.5 -19.0 3.5 1966 163.0 101.3 101.3 89.6 44 5 59.2 36.2 39.0 32.6 14.8 10 1 -12.2 4.6 8.4 1967 188.7 121.0 121.0 108.2 58.6 74 7 49.5 52 6 45.5 26.1 208 -3.6 14.8 190 9.8 1968 217 4 142.9 142.9 128 9 74.4 92.1 64.4 67.7 60.0 38.6 32.8 6.0 26 3 30.9 20 7 100 1969 316.9 219.0 219.0 200.6 129.0 152.3 115.9 120.3 110.2 82.0 74.5 392 65.8 71.9 58.5 44 4 31.3 1970 403.6 285.4 285.4 263.1 176.6 204.8 160.8 166.1 153.9 119.0 110.8 68.2 100.3 107.6 91.5 74.4 58.7 20.8 1971 487.6 349.7 349.7 323.7 222.8 255.7 204.3 210.5 196.2 156.6 115.9 96.2 133.7 142.3 1234 103.5 85.1 41 0 16.7 1972 663.3 484.1 484.1 450.4 319.3 3620 295.3 303.4 284.8 233.3 219.4 154.9 203.6 214.7 190.2 164.4 140.5 83.1 51.6 29.9 1973 802.5 590.7 590.7 550.8 395.8 446.3 367.4 376.9 3550 294.1 272.7 201.4 259.0 272.1 243.2 212.6 184.3 116 5 79.2 53.6 18.2 1974 998.6 7408 740.8 692.2 503.5 565.1 4690 480.6 453.9 379.7 359.8 266.9 337.0 353.0 317.8 280.6 174.5 163.6 118.2 87.0 44 9 21 7 1975 115.5 830.2 830.2 776.5 567.7 635,8 529.5 5423 5128 430.8 408.7 305.9 383.5 401.1 362.2 321.1 282.9 191.6 141.4 106.9 59.2 34.7 10.6 TABLE A-4 Percentage changeannual contract award dollars, 1952-1975 (constant dollars) 1952_ 1953 1954 1955 1956 1957 1958 _ 1959 1960 1961 1962 1963 1964 1965 1966 1967 1968 1969_ 1970 1971 1972 1973 _. 1974 1975 1952 1953 53 3.2 1954 20.3 -24 1955 21.7 -1.2 1.2 1956 51.1 22.6 256 24 1 1957 30.0 5.5 8.1 6.8 14.0 1958 46.6 19 0 21 9 20 4 -2.9 128 1959 384 12 3 15.1 13.7 -84 6.5 -56 1960 43.0 16.1 189 17.5 5.3 10.1 24 3.4 . 1961 62 7 32.0 35.3 33.6 7 7 25.2 109 17 5 137 1962 679 366 396 380 11 2 292 145 21.3 17 4 3.2 1963 04.6 66 1 70.2 68 1 35.5 575 39.5 47.9 43 1 25.8 21.9 1964 69.4 375 40.9 39.2 12.2 30.4 15.5 22 4 184 4.2 9 17.2 1965 60 8 305 337 32.1 6.4 23.7 9.6 16.2 12.4 12 -4.3 21.4 5.1 1966 68 6 368 40.2 385 11.6 29.7 15.0 21.8 178 36 4 -17 6 -0.5 4.9 1967 80.8 46 7 504 48 5 19 7 39.1 23.3 30.6 264 11.2 7.7 -11.6 6.7 12.5 7.3 1968 141 1 95.7 100.5 98 1 59.6 85.6 64.4 74.2 68.6 48.2 43.6 17.8 42.3 50.0 43.1 33 0 1969 132.7 88.9 93.5 91 2 54.1 79.1 58.7 68.1 627 43.1 386 137 37.4 44 8 38.0 28.7 3.5 1970 163.3 113 7 118.9 1163 74.3 102.6 79.6 90.2 84 1 61.9 568 287 55.4 63.8 56.2 45.6 9.2 13.1 1971 176.8 124.7 130.2 127.4 83.2 113.0 88.8 1000 93.5 70.2 64.8 35.3 63.4 72.2 642 53.1 14.8 18,9 5.1 1972 232.1 169.5 176.1 172.8 1198 155.5 126.4 139.9 1322 104.2 97.7 623 96.0 106.6 97.0 83.7 37.7 42.7 26.1 20.0 1973 267.9 198.6 206.0 202.3 143.6 183.1 150.9 165.9 157.2 126.2 119.1 79.8 117.2 128.9 118.3 103.5 52.6 58.1 39.7 32.9 10.8 1974 302.7 226.9 2349 230.8 166.6 209.9 174.7 191.0 181.6 147.6 139.8 968 137.7 150.5 138.9 122.8 67.0 73.1 53.0 45.5 21 3 9.5 1975 267.9 198.6 206.0 202 2 143.6 183.1 150.9 165.9 157.2 126.2 119.1 79.8 117.2 128.9 118.3 103.5 52.6 58.1 39.7 32.9 10.8 0 -8.6 ------- o> TABLE A-5 Percentage changedistributed sewage treatment award dollars, 1952-1975 (current dollars) 1952 _. 1953 _ 1954.. 1955 __ 1956 __ 1957 __ 1958 __ 1959 _. 1960 _ 1961 _. 1962 _ 1963 __ 1964 _ 1965 __ 1966 __ 1967 _. 1968 __ 1969 , 1970 _ 1971 _ 1972 __ 1973 ._ 1974 1975 1952 1953 36.5 1954 67.4 22.5 1955 46.7 7,5 -12.2 1956 58.4 89.3 54.6 76.1 1957 56.2 87.7 53.3 74.6 -0.8 1958 184.0 108.0 699 93.5 9.9 10.8 1959 154.7 86.6 52.4 73.6 -1 4 -0.5 10.3 1960 162.0 92.0 56.8 78.6 1.4 2.3 -7.7 2.9 1961 227.7 140.1 96.1 123.4 26.8 28.0 15.4 28.7 25.1 1962 297.8 191.4 138.0 171.1 54.0 55.3 40.1 56.2 51.8 21.4 1963 395.6 263.1 196.5 237.8 91.8 93.4 74.6 94.6 89.1 51.8 24.6 1964 275.2 174.8 124.5 155.7 45.2 46.4 32.1 47.3 43.2 14.5 -5.7 -243 1965 281.0 179.1 128.0 159.7 47 2 48.7 34.2 49.6 45.4 16.3 -4 2 -23.1 1.6 1966 303.6 195.1 141 5 175.1 56.2 57.5 42.1 58.4 54.0 23.2 1.5 1-18.6 7.6 5.9 1967 335.8 219.2 160.7 197.0 68.6 70.1 53.5 71.1 66.3 33.0 9.5 -12.1 16.1 14.4 8.0 1968 532.8 363.6 278.6 331.3 144.9 147 0 122.9 148.4 141.5 93.1 59.1 27.7 68.7 66.1 56.8 45.2 1969 502.2 341.2 260.3 310.4 133.0 135.0 112.1 136.4 129.8 83.5 51.4 21.5 60.5 58.0 49.2 38.2 -4.8 1970 692.0 480.2 373.8 439.8 206.5 209.1 179.0 210.9 202.2 141.6 99.1 59.8 111.1 107.9 96.2 81.7 25.1 31.5 1971 960.0 677.0 534.5 622.9 310.5 314.0 273.5 316.3 304.7 223.6 166.6 144 0 182.7 178.4 162.7 143.3 676 76.1 34.0 1972 371.5 978.1 780.3 903.0 469.5 474.4 418.2 477.7 461.6 349.0 270.0 197.0 292.2 286.2 264.6 237.7 132.5 144.4 85.8 38.7 1973 1582.5 1132.6 906.5 1046.8 551.1 556.7 492.5 560.5 542.1 413.4 323.0 239.5 348.4 341.6 316.8 286.1 165.6 179.4 112.4 58.6 14.3 1974 2019.7 1452.9 1168.1 1344.8 720.3 727.4 646.5 732.1 708.9 546.8 432.8 327.7 465.0 456.3 425.1 386.4 234.9 252.0 167.6 99.9 44.0 26.0 1975 2238.7 1613.4 1299.1 1494 0 805.1 812.8 723.7 818.1 792.5 613.6 487.9 371.9 523.3 513.8 479.4 436.7 269.6 288.4 195.3 120.5 58.9 39.0 10.3 TABLE A-6 Percentage changedistributed collecting sewers award dollars, 1952-1975 (current dollars) 1952 ^ 1953 .. 1954 __ 1955 .. 1956 __ 1957 _. 1958__ 1959 _ 1960 __ 1961 __ 1962 __ 1963 __ 1964 __ 1965 __ 1966 _ 1967 __ 1968 _ 1969__ 1970 __ 1971 1972 _ 1973 ._ 1974 1975 _ 1952 1953 27.1 1954 8.4 -14.7 1955 33.8 5.2 23.4 1956 35.6 6.6 25.0 1.3 1957 9.8 -13.6 1.2 -17.9 -19.0 1958 37.8 8.4 27.0 3.0 1.6 25.5 1959 49.3 17.5 37.7 11.6 10.2 36.0 8.3 1960 59.6 25.5 47.1 19.2 17.7 45.3 15.8 6.8 1961 68.9 32.9 55.7 26.2 24.6 53.8 22.6 13.1 5.8 1962 42.2 11.9 31.1 6.3 5.0 29.6 3.2 -4.8 -10.9 -15.8 1963 80.0 41.6 66.0 34.5 32.8 64.0 30.6 20.5 12.8 6.6 26.6 1964 76.0 38.5 62.3 31.5 29.8 60.3 27.7 17.8 10.3 4.2 23.8 -2.2 1965 58.2 24.5 45.9 18.2 16.7 44.1 14 4 6.0 -8.4 -6.3 11.3 -12.1 -10 1 1966 77.3 395 63.5 32.6 30.8 61.5 28 7 18.8 11.1 5.0 24.7 -1.5 .8 12.1 1967 99.1 56.0 83.6 48.8 46.9 81,4 44.5 33.3 24.8 17.9 40.0 10.6 13.1 25.9 12.3 1968 158.7 103.5 138.5 93.4 90.8 135.6 87.7 73.2 62.1 53.2 81.9 43.7 47.0 63.5 45.9 30.0 1969 204.0 139.2 180.3 127.2 124.3 176.9 120.6 103.6 90.5 80.0 113.8 68.9 72.8 92.1 71.4 52.7 17.5 1970 228.0 158.0 202.5 145.2 141.9 198.8 138.1 119.6 105.6 94.2 130.6 82.2 86.4 107.3 85.0 64.7 26.8 7.9 1971 199.6 135.7 176.2 123.9 121.0 172.9 117.4 100.6 87.7 77.4 110.6 66.4 70.2 89.3 69.0 50.4 15.8 -1.5 -8.7 1972 232.0 161.2 206.1 148.2 144.9 202.4 141.0 122.3 108.1 96.6 133.4 84.4 88.6 109.8 87.2 66.7 28.4 9.2 1.2 10.8 1973 327.6 236.4 294.3 219.6 215.4 289.5 210.3 186.3 168.0 153.2 200.6 137.5 143.0 170.2 141.1 114.7 65.3 40.6 30.3 42.7 28.8 1974 376.9 275.2 339.8 256.5 251.8 334.4 246.1 219.3 198.9 182.4 235.3 164.9 171.0 201.4 168.9 139.5 84.4 56.9 45 4 59.2 43.6 11.5 1975 431.6 318.2 390.2 297.3 292.1 384.2 285.8 256.0 233 1 214.7 273.8 195.3 202.0 236.0 199.7 167.0 105.5 74.9 62.1 774 60.1 24 3 11.5 ------- TABLE A-7 Contract awards (distributed) by states lor year 1975 State Alabama Alaska Arizona Arkansas California Colorado _. . Connecticut Delaware District of Columbia Florida Georgia Hawaii Idaho Illinois Indiana Iowa Kansas Kentucky Louisiana Maine Maryland Massachusetts . Michigan Minnesota Mississippi Missouri Montana Nebraska Nevada New Hampshire New Jersey ___ New Mexico New York North Carolina North Dakota . . __ Ohio Oklahoma Oregon Pennsylvania Rhode Island South Carolina South Dakota Tennessee Texas Utah Vermont Virginia Washington West Virginia _ .. Wisconsin Wyoming TOTALS Total 49 149 527 25 315 066 36 855 713 29 836 240 286 610 977 56,086,679 60.280 868 34 365 859 12,339 437 256 272 768 48,737 589 32,383 685 9,305 440 212 000 721 243,495 856 49 475 432 26 519 272 59,595 941 39,073 300 26 304 223 145,788,713 111,724 356 196,760,927 153,427,609 36,728,857 125.029 481 5,204,806 14,954 538 9,086 705 33,442 749 199,525.828 13 562 973 624,490,950 50,945 367 8,264,408 164.148,350 26,809,067 22,064,390 225,455,518 42,022,897 9,480,904 3,422,059 64.542 766 165,175,794 6,443 805 10.502,523 120.568 578 73,662,964 31,020,224 104,406 078 7,724 173 4,400,395,949 Sewage Treatment 43 936 806 25 064 356 28 959 279 22 189 627 225 725 161 46.779.100 18 986 006 22 236 841 12 185 400 207 155 453 24 098 818 21 967 795 8 299 718 154 799 059 217 824075 41 270 581 17 479 676 39 519 491 21 566.385 19 227 123 113 384,947 82,357,135 88.535.854 111,695,845 30,641,523 107 462 652 4,466.112 9 158.229 6 753.485 20 814.895 161,765.422 5 955 090 497,540,515 27 709.692 4.866,929 93 088.881 21 837 189 14,996.304 141,520,492 26,371,862 3,517,498 1.106,616 35 302,657 114,157,042 4 830,189 7,163,729 89,735,178 54,997,412 19,015,998 79 151,025 5.450.258 3,204.621,405 Collecting Sewers 5 212 721 250 709 7 896 434 7 646 613 60 885 816 9,307 579 41 294 862 12 129 018 154 037 49 117 315 24 638 771 10 415 890 1 005 722 57 201 662 25 671 781 8 204 851 9 039 596 20 076 450 17,506 915 7 077 100 32,403 766 29,367,221 108,225,073 41 731 764 6,087,334 17 566 829 738,694 5 796 309 2.333,220 12,627 854 37,760.406 7 607 883 126.950,435 23.238 675 3.397.479 71.059 649 4,971.878 7,068.086 83.938,026 15.651.035 5.963,406 2.315,443 29.240,109 51,018.752 1 613 616 3,338,794 30,833,400 18.665,552 12.004,226 25,255,053 2,273.915 1.195,777,544 NOTE The costs ot the combination group were apportioned between sewage treatment facilities and collecting sewers in the same ratio as those for which such descriptions are available. ------- 00 TABLE A-8 Contract awards by population size group, 1975 Population Size Group Under 500 500-999 1 ,000-2 499 2 500-4 999 5,000-9,999 10,000-24 999 25 000-49 999 50 000-99 999 100,000-249,999 Over 250 000 TOTALS Total Number 808 309 520 493 748 946 631 508 475 819 6,257 Dollars 508,564,403 131,851,782 193,360,988 208,751.806 366,842,753 537,090,113 396.269,960 516,445,593 651,048.383 890,173,216 4,400,398,997 Sewage Treatment Number 199 103 143 115 164 187 118 114 108 143 1,394 Dollars 337,148,166 74,566.932 104,782,165 109.898,756 212.369,678 300.641,418 242,316,300 394,226,575 515,256.746 634 200.920 2,925.407,656 Collecting Sewers Number 469 147 294 307 473 658 442 350 311 578 4,029 Dollars 94,931,418 32,948.597 57,149,318 56,605,535 118,854 503 206.948,921 92,424,976 99,762,801 93,423.031 162,482,358 1,015,531,458 Combinations Number 140 59 83 71 111 101 71 44 56 98 834 Dollars 76,484,819 24,336,253 31,429.505 42.247.515 35,618,572 29.499 774 61,528,684 22,456.217 42.368,606 93,489,938 459,459,883 TABLE A-9 Contract awards by size of contract, 1975 Dollar Size Group Under 10 000 10,000-25,000 25,000-49,999 50,000-99,999 100,000-249999 250,000-499,999 500,000-999,999 1,000,000-4,999,999 Over 5,000 000 TOTALS Total Number 600 805 845 925 1 104 694 565 553 166 6,257 Dollars 3,712,107 13,612,850 30,860,255 66,961,599 178,785,131 248,028,286 391,948,712 1,172,804.884 2.293,685,173 4,400,398,997 Sewage Treatment Number 43 63 100 127 249 195 195 287 135 1,394 Dollars 275,635 1,045,883 3,675.308 9,485,193 41,818,330 70,850,415 135,745,649 667,545,951 1,994.965,292 2,925,407,656 Collecting Sewers Number 527 685 636 668 686 358 265 181 23 4.029 Dollars 3,220,576 11,561,676 23.093,734 48,299,165 109,836,679 126,847,660 185,506,741 345,894,529 161,270,698 1,015,531.458 Combinations Number 30 57 109 130 169 141 105 85 8 834 Dollars 215,896 1,005,291 4,091,213 9,177.241 27,130,122 50,330,211 70,696,322 159,364,404 137,449,183 459,459.883 ------- TABLE A-10 Annual contract awards for 1971-1975, by state State Alabama Alaska Arizona Arkansas California Colorado Connecticut Delaware District of Columbia __ Florida Georgia __ .__ Hawaii Idaho _ . Illinois Indiana Iowa Kansas __ Kentucky Louisiana __ Maine Maryland Massachusetts Michigan Minnesota Mississippi Missouri ___ Montana Nebraska Nevada __. __. New Hampshire New Jersey New Mexico .__ ___ _ New York North Carolina ___ . North Dakota ___ ___ . __ Ohio Oklahoma . Oregon Pennsylvania- ___ ___ __. Rhode Island South Carolina . ___ .. South Dakota Tennessee__- ___ ___ .. Texas Utah 1 Vermont Virginia __. Washington ___ West Virginia Wisconsin _ _ Wyoming . __ TOTALS Number 33 28 33 33 350 3 114 18 3 132 112 20 223 133 135 103 56 82 41 392 173 309 248 43 122 8 95 4 24 159 19 273 104 34 293 62 95 336 15 28 26 78 319 10 95 98 17 429 1 5.561 1971 Amount 8 359 444 8 393 568 3 366 658 7 875 893 121 079 365 518 820 107 167 852 12 277 951 15.417,971 42 083 381 73 116706 3 123 169 126 954 138 56,341.866 19 864 221 10,534.217 16 547 091 10,808,608 22 587 441 39,971.987 59,256.836 195 103 445 57 364 781 26 689 464 13 485 611 - 1 769 158 20 877 802 165 258 10.381,029 51 046 499 2,989,657 378 221 948 33,687403 1,218,673 118 621 128 13.211,661 32 252 914 128,356.747 5 257 533 15.056.142 2 149 626 52,900,295 60 611 362 2 075 451 26,300.199 29.682.399 4.792.647 77 223.619 28,216 2 127 167 850 Number 32 22 39 39 277 40 114 10 4 161 117 7 10 228 119 136 122 58 69 43 295 129 305 247 50 116 8 136 6 27 159 16 263 108 42 221 63 80 270 16 47 26 86 341 6 21 114 118 9 344 5 5 321 2 Amount 16,971 767 13,379 792 10,096.608 9.582,374 68.271.938 8,593,019 56,810,121 10,446.992 16.826,194 66,271,376 81,364,697 Number 69 16 60 48 418 62 164 27 7 224 130 912.000 19 5,596,012 15 142,612.786 295 46,700.653 137 27.360 902 13.231.635 71,996.649 9,999.169 19.933,438 39,328,913 34,765,889 240,937.340 50,807,147 13.089,449 21,364,185 923,570 15.953,042 933.619 24,007,667 48,723,164 7 416 449 962,748,817 44.086,803 6,482,382 65,781,692 15,788.056 26,479,973 116,444 380 4.091 259 25.721,159 2.276,219 39,140,438 98.860.324 1.266.633 9.370.375 24,120,802 44,303.677 1,545,916 77.549,205 2.178 232 763,444,898 160 109 80 115 39 356 192 286 326 42 141 9 153 14 8 190 15 329 88 64 343 67 62 343 28 45 31 147 432 24 11 200 97 16 392 3 6,648 1973 Amount 21.606,768 19,706.675 28.881 164 18,122.253 225,589.282 Number 59 16 46 61 437 18 143.742 65 85,445,278 9,733.342 7,128.602 128.101.602 78.505,799 39.555,000 12.836,148 172,369,607 66,268,380 28.370,277 8.590,745 16,998,382 50.181,372 37,469.810 133.561,951 180,675.051 60.684,476 56,692.427 32.409,771 40,175.975 11.601,592 15.717.772 9.295,674 23.093.938 60.703.614 16.918.644 526,210996 33,673,840 5,657,239 214,864,039 15,833,666 33,397,822 155,604,324 24,039.010 26,896,988 6,055,734 72,270,885 146.385,432 8,705,160 5,000,594 137,585,899 37.305.441 6.807,600 96,383.556 426,161 3,267.239,499 137 25 6 226 115 16 18 261 113 168 135 86 130 50 285 163 284 307 47 136 18 146 15 22 217 12 308 108 60 318 76 81 333 21 47 43 106 373 6 9 212 105 23 375 3 6,429 1974 Amount 27,624,065 15.547,604 24.567.190 27.440.554 312,006,890 54.202,088 57,908.924 11.413.620 85,493.813 246.629.573 Number 38 7 48 54 408 69 178 45 7 205 68,081.725 118 25.754.000 12,075,015 174,840,298 76,724.752 77,949,553 23,734,849 55,231,896 64,893,462 26,159,600 87,415,164 100,007,109 235,206,312 157,784,174 11,219,786 59,499,896 17,437,131 53,753,496 2.594,354 16,914.331 354.564,060 1.777.879 251.829,436 70.273,026 6,183,993 194,448.754 31,856,722 49.447.004 187.169.174 17.762,473 35,046,284 3.797,310 62,596,216 180.674,948 4 443 407 4,247.491 147,971,097 54.074,934 10.484,819 94.232,334 3,746.645 3,976,740,230 24 10 280 152 138 133 73 86 55 247 164 233 277 56 138 9 114 16 35 182 24 342 129 54 287 51 77 358 31 46 45 97 372 9 17 216 79 36 378 10 6,257 1975 Amount 49,149.528 25.315.065 36 855.714 29.836.241 286,610,978 56,086,680 60,280,869 34,365,860 12,339,437 256,272,769 48,737,590 32,383,686 9,305,441 212,000,722 243,495,857 49,475,433 26,519,273 59,595,942 39,073,301 26,304,224 145,788,714 111,724,357 196,760,928 153,427,610 36,728,858 125,029,482 5,204,807 14,954,539 9,086,706 33,442,750 199,525,829 13,562,974 624,490,951 50,948,368 8,264,409 164,148,351 26,809,068 22,064,391 225,458,519 42.022,898 9,480,905 3,422,060 64,542,767 165,175,795 6,443,805 10,502,524 120,568,579 73,662,965 31,020,225 104,406,079 7 724,174 4,400,398,997 CD ------- TABLE A-11 Annual contract awards for 1971-1975, by basin Contract Basin Northeast North Atlantic Southeast Tennessee River Ohio River Lake Erie Upper Mississippi "Western Great Lakes Lake Michigan Lake Huron Lake Superior Missouri South Central Lower Mississippi __ Colorado River Western Gulf Pacific Northwest California Great Basin _. Alaska Hawaii _ __ ._. TOTALS "Aggregate of Lakes Michigan. Huron, and Superior. Number 752 770 438 46 482 146 760 605 605 285 325 42 317 216 335 14 28 5,561 1971 Amount 603,002,883 195 703,807 189,088,621 29,733,824 191,577,932 67 858,70 220,031,911 260,892,958 260,892.958 41,170.402 71 111,717 4,227,499 58,147.750 65.218.346 116 857,785 4 149.877 8,393.568 2.127,167,850 Number 710 635 503 41 399 161 753 502 486 15 1 369 337 55 330 212 258 27 22 7 5,321 1972 Amount 1.141,593,522 194,908,490 244,032,950 19,364,925 177,731,960 55,963.017 228,587,799 302.468,139 276,213,662 26,234,879 19,598 67,697,580 56,392,608 13,519,111 99,741,934 76,842,927 62,203.176 8,104.968 13,379,792 912.000 2.763,444,898 Number 887 843 576 74 598 258 953 469 379 64 26 408 406 91 427 174 389 60 16 19 6,648 1973 Amount 923,867,543 373,846,620 344,526,710 46,336,963 276,125,760 105,128,254 278,914,829 140,204 948 117,588,195 17,131,478 5.485,275 75,557,230 122,284,321 38,619,487 154,492,584 85,037,988 216,656,816 26,377,771 19,706,675 39,555,000 3,267,239,499 Number 881 751 586 51 536 287 885 429 342 63 24 447 448 81 362 206 419 28 16 16 6,429 1974 Amount 812,237,631 469,646,045 457,655,685 30,259,555 323,656,443 211,417,552 387,956,236 251,991,793 132,807,379 67,870,424 51,313,990 193.694,124 152,700,782 29,948,213 181,151,136 115,834,426 308,108,702 9,180,303 15,547,604 25.754,000 3,976,740,230 Number 930 789 575 57 524 276 844 411 355 40 16 410 370 83 369 166 392 30 7 24 6.257 1975 Amount 1,067,126,672 517,045,982 438,613,142 44,118,355 432,044,703 216,216,343 389,547,460 250,201,189 187,456,449 10,583,809 52,160,931 205,576,509 156,733,620 53,106,985 170,195,253 105.032,797 262,059,189 35,082,047 25,315,065 32,383,686 4.400 398.997 ------- TABLE A-12 Percentage change in total contract awards by state, 1971-1975 Alabama 1971 1972 1973 .. ... 1974 1975 1971 1972 + 03 0 1973 + 58.5 -27 3 1974 + 30,5 + 62.8 + 27 8 1975 + 88.0 + 89.6 + 27.5 -779 Alaska 1971 1972 ___. 1973 1974 1975 1971 " 1972 | 1973 + 594 I -348 - -473 ! 1974 -85 2 162 -21.0 1975 + 01.6 -89.2 + 28.5 t62 8 Arizona 1971 1972 1973 .. 1974 1975 ... 1971 1972 + 999 1973 + 579 + 86 0 1974 + 29.7 + 433 14 8 1975 -94.7 -65 0 -276 -50 0 Arkansas 1971 1972 1973 1974 1975 California 1971 1972 1973 1974 1975 Colorado 1971 1972 1973 1974 1975 1971 1971 1971 _ 1972 + 21 7 1972 -43 5 1972 + 56.3 1973 + 30 1 + 89.1 1973 + 86 3 + 30 4 1973 + 97.1 1974 + 484 + 864 .51 4 1974 -57.7 + 57 0 + 38.3 1974 + 47.2 + 30.8 + 98.7 1975 + 78 8 + 114 + 64 6 + 8.7 1975 -36.7 + 19 8 + 27 0 -8 0 1975 + 10.4 + 52.7 + 09.1 3.5 Connecticut 1971 _ 1972 1973 1974 1975 1971 1972 -46.9 1973 -202 + 50.4 1974 -45.9 + 1 9 -32.1 1975 43.7 + 6.1 -29.4 + 4 1 Delaware 1971 1971 1972 1973 1974 1975 __ 1 1972 14.8 1973 -20.6 -67 1974 -6.9 + 9.3 + 173 ~ 1975 + 79.9 -29 0 + 53.1 + 01 1 District of Columbia 1971 1972 1973 1974 1975 1971 1972 + 91 1973 -537 57.5 1974 + 54.5 -08 .1 -99.3 1975 -19.9 26.6 + 73.1 -85.5 Florida 1971 1972 1973 . 1974 1975 .. 1971 1972 + 575 1973 + 04.4 -93 3 1974 + 86.0 + 72.2 + 92.5 1975 + 09.0 + 86.7 + 00.1 + 3.9 Georgia 1971 1972 __. . . . 1973 1974 1975 1971 1972 + 113 1973 + 7 4 3.4 1974 -6.8 -16.2 -13.2 1975 -33.2 -40.0 -37.8 -28.3 Hawaii 1971 1972 1973 1974 1975 1971 _ 1972 + 0,0 1973 + 0.0 + 37 2 1974 + 0.0 + 23.9 34.8 1975 + 00 + 50.8 -18.0 + 25.7 ------- ro ro TABLE A-12Continued Percentage change in total contract awards by state, 1971-1975 (continued) Idaho 1971 1972 1973 ... _ 1974 , 1975 ... ] Illinois 1971 1972 1973 1974 1975 Indiana 1971 1972 1973 1974 1975 1971 _ 1971 1971 1972 + 79.2 1972 + 12.3 I i 1972 -170 1973 + 11.0 + 29 4 1973 + 35.8 + 20.9 1973 -17.6 + 41 9 1974 + 86.6 + 15 8 -5.8 1974 + 37 7 + 22 6 + 1 4 1974 + 36 .2 + 64 3 + 15.8 1975 + 97.9 + 66 3 -27.4 -22.8 1975 + 67.0 + 48 7 + 23.0 + 21.3 1975 + 322 + 21 4 + 67.4 + 17.4 Iowa 1971 1972 1973 1974 1975 1971 1972 + 37.7 1973 + 42.8 + 37 1974 + 92 4 + 84.9 + 74 8 1975 + 49.1 80.8 + 74 4 + 36.4 Kansas 1971 1972 1973 1974 1975 1971 _ 1972 + 256 1973 -18.3 -35.0 1974 + 25.3 + 79.4 + 76.3 1975 + 51.7 + 00.4 + 08.7 + 11 7 Kentucky 1971 1972 1973 1974 1975 .. 1971 1972 + 35.1 1973 + 2.7 -76.3 1974 + 33.8 -23.2 + 24.9 1975 + 60.2 -17 1 + 50.6 + 7.9 Louisiana 1971 1972 __ 1973 1974 1975 1971 __ 1972 -7.4 1973 + 64 3 + 01.9 1974 + 00.4 + 49.0 + 29 3 1975 + 61.5 + 90.8 -22 0 -39.7 Maine 1971 1972 1973 . 1974 1975 1971 1972 - 11.6 1973 + 65.9 + 88 0 1974 + 15.8 31 2 -30.1 1975 + 16.5 + 32 0 -29.7 + 0.6 Maryland 1971 .. 1972 _. 1973 _ 1974 1975 . 1971 _ 1972 -1.5 1973 + 34.1 + 39.6 1974 + 187 + 22.3 -34.5 1975 + 64.7 + 70.7 + 9.2 + 66.8 Massachusetts 1971 ___ 1972 1973 _. 1974 1975 1971 1972 41.2 1973 + 04.9 + 197 1974 + 68.8 + 87.7 -44.5 1975 + 88.5 + 21.4 -38.1 + 11 7 Michigan 1971 1972 1973 1974 1975 1971 _ 1972 + 23 5 1973 -68.8 -74.7 1974 + 20.6 -2.3 + 87,6 1975 + 08 -18.2 + 24 2 -16 2 Minnesota 1971 1972 1973 1974 ___ 1975 _ 1971 1972 -11 3 1973 -1 1 + 11.6 1974 + 75 1 + 10.6 + 78.3 1975 + 67.5 + 02.0 + 70 6 -2.7 ------- TABLE A-12Continued Percentage change in total contract awards by state, 1971-1975 (continued) Mississippi 1971 .._ 1972 1973 1974 ___ 1975 1971 1972 -509 1973 + 21.4 47.6 1974 -57.9 14 2 -653 1975 + 37.6 + 806 + 13.3 + 27 4 Missouri 1971 ___ 1972 1973 1974 . 1975 ^ 1971 1972 58 4 1973 -979 + 88 1 1974 -41.2 -785 + 48.1 1975 -27 1 -85 2 112 + 10 1 Montana 1971 1972 1973 _. 1974 1975 .. 1971 1972 -47.7 1973 -558 + 56 2 1974 -85.6 -88.0 -50 3 1975 -94.2 + 63 6 -55 0 -70 1 Nebraska 1971 _ 1972 ___ 1973 1974 1975 1971 1972 -23.5 1973 -24.6 -1.4 1974 + 575 -369 -42 0 1975 28.3 6.2 -4.8 -72 .1 Nevada 1971 . 1972 1973 _. 1974 1975 1971 " 1972 + 64.9 1973 + 24 9 -95.7 1974 *69.9 77.9 -72.0 1975 -98.5 + 73.3 2 1 502 New Hampshire ro co 1971 1972 1973 1974 1975 J 1971 1972 + 31 3 1973 22.5 -3.7 1974 + 62.9 -29.4 -26.7 1975 + 22.2 + 39.3 + 44.8 + 977 New Jersey 1971 ___ 1972 1973 1974 1975 1971 1972 -4.5 1973 + 18.9 + 24 6 1974 + 94 6 1 + 27 7 + 84.1 1975 + 90.9 + 09.5 + 287 43 6 New Mexico 1971 1972 1973 ____ 1974 1975 1971 1972 + 48 1 1973 *659 + 28 1 1974 -40 4 -75 9 894 1975 t53.7 + 82.9 -19.7 + 62.9 New York 1971 1972 1973 . 1974 1975 ____ 1971 1972 -54.5 1973 + 39.1 -45.2 1974 33.3 -73.7 -52.0 1975 + 65.1 -35.0 -187 + 48 0 North Carolina 1971 1972 __. 1973 1974 __ 1975 1971 1972 + 309 _ 1973 + 00 -23.5 ~ 1974 + 08.6 -594 -08 7 1975 -51.2 + 15.6 + 51.3 - 27.4 _ North Dakota 1971 1972 1973 1974 __. 1975 Ohio 1971 1972 -31.9 1973 -64 .2 12.6 1974 07.4 4.5 + 93 1975 + 78 1 -27 5 -46 1 + 33.6 1971 1972 1973 1974 1975 1971 1972 -44.4 1973 + 81.1 -26.6 1974 + 63.9 -95 6 -9.4 1975 -38.4 -49.5 -23.5 -15.5 ------- TABLE A-12- Continued Percentage change in total contract awards by state, 1971-1975 (continued) Oklahoma 1971 1972 1973 1974 1975 1971 _ 1972 + 19 5 1973 + 19.8 + 0.3 1974 + 41 1 + 01.8 +01.2 1975 + 02.9 + 69.8 + 69.3 -15 7 Oregon 1971 1972 1973 . .. 1974 1975 1971 1972 -178 1973 + 35 + 26 1 1974 + 53.3 + 867 + 48 1 1975 -31.5 -166 33.8 -55.3 Pennsylvania 1971 1972 1973 1974 1975 1971 _ 1972 -9.2 1973 + 21 2 + 33 6 1974 + 45 8 -60 7 *20.3 1975 + 75.6 + 936 -44 9 + 205 Rhode Island 1971 1972 .. 1973 1974 1975 ... 1971 _ 1972 -22 1 1973 + 57 2 + 876 1974 + 37.8 + 34 2 26.0 1975 + 99.3 -27 1 + 74 8 -36.6 South Carolina 1971 1972 1973 1974 1975 1971 _ 1972 + 70.8 1973 + 78.6 + 4.6 1974 + 32.8 + 363 + 30.3 1975 -36.9 -63.0 -64.7 -72.8 South Dakota 1971 1972 1973 1974 1975 .. 1971 1972 + 5.9 1973 + 35.2 + 22.1 1974 + 76.6 + 66.8 24 8 1975 + 59.2 + 50.3 -32.2 -9.8 Tennessee 1971 1972 1973 1974 1975 1971 1972 -25.9 1973 + 36.6 + 84 6 1974 + 18.3 + 59.9 -13 3 1975 + 22.0 + 64.9 -10 6 + 3 1 Texas 1971 1972 1973 1974 1975 1971 1972 + 63.1 1973 + 41 5 + 48 1 1974 + 98 1 + 82.8 + 23 4 1975 + 72.5 + 67.1 + 12 8 -8 5 Utah 1971 1972 1973 ... 1974 1975 .. 1971 1972 + 0.0 1973 + 00 -+87 3 1974 + 0.0 + 50.8 -489 1975 + 00 + 08 .7 -25.9 + 450 Vermont 1971 __.. 1972 ... 1973 _ 1974 ... 1975 ___ 1971 1972 + 51.5 1973 + 40.9 -46.5 1974 -04.7 54.6 -150 1975 + 06.0 + 12 1 + 10.0 + 47.3 Virginia 1971 .... 1972 1973 __ 1974 1975 1971 1972 8.2 1973 + 23.1 + 70 4 1974 + 62.6 + 13.5 + 7.5 1975 + 58.4 + 99 9 -12.3 -18 4 Washington 1971 1972 1973 1974 1975 . 1971 1972 -49 3 1973 + 25 7 -15.7 1974 + 82.2 + 22 1 + 45 0 1975 + 48.2 + 66.3 + 97 5 + 36.2 ------- West Virginia Wyoming 1974 1971 1972 1973 1974 1975 Wisconsin 1971 1972 1973 1974 1975 1975 .47.2 «06.6 .55 7 ^ 95 9 1971 1972 . 1973 1974 1975 1973 10 4 80.3 1974 -78 4 720 -79.2 1975 75.2 + 54 6 -12.5 -06 2 1973 ~~T 1974 I 1975 -248 24 3 220 - 35 2 215 21 ' -346 *8 3 -108 en ------- 0> TABLE A-13 Percentage change in total contract awards by major basin, 1971-1975 Alaska Lake Huron 1971 1972 1973 1974 1975 1971 1972 (59.4 1973 . 34.8 + 47 3 1974 *85 2 . 16 2 21 0 1975 + 01 6 -89.2 -28 .5 + 62.8 California 1971 ___ ___ 1972 1973 1974 .__. 1975 1971 1972 46.7 1973 + 85 4 48.3 1974 + 637 + 95 3 -42 2 1975 -24.3 21.3 -21 0 -14.8 1971 _ 1972 __ 1973 1974 1975 _. ._ Lake Michigan 1971 1972 + 00 1973 + 0.0 -34.6 1974 + 00 + 58.7 + 962 r 1975 -0.0 -59.6 38.1 -84 3 1971 1972 1973 1974 1975 1971 1972 + 5.9 1973 54.8 57.3 1974 -49.0 51.8 + 12.9 1975 -28.0 32.0 + 59.4 + 41.1 Colorado River 1971 1972 1973 1974 1975 1971 1972 -19 8 1973 | 1974 . 135 -85.7 .084 .21 5 22.4 ~ 1975 + 56 2 + 92 .8 -375 77.3 Lake Superior 1971 1972 1973 1974 1975 1971 1972 .00 1973 -00 + 89.0 1974 + 00 + 32 8 + 355 ~ 1975 + 00 -54.4 -509 -17 Great Basin Missouri 1971 1972 1973 1974 1975 ._ 1971 _ 1972 + 95 3 1973 + 35 6 + 25 5 1974 21.2 + 13 .3 -65 1 1975 45 4 + 32 8 + 33 0 + 82.1 1971 1972 1973 _. 1974 .. .___ 1975 __ ____ 1971 1972 + 64 4 1973 -83 5 + 11.6 1974 + 70 5 + 86 1 + 56 4 1975 ' +99.3 + 03.7 -72 .1 + 6.1 Hawaii 1971 1972 1973 1974 1975 1971 1972 + 00 1973 + 0.0 -37.2 1974 + 0.0 23.9 34.8 1975 + 00 + 50.8 -180 -25.7 - North Atlantic 1971 1972 _ 1973 1974 __ .___ 1975 . 1971 1972 -0 3 1973 + 91 0 + 91 8 1974 + 40 0 + 41 0 + 25 6 1975 + 64 2 + 65 3 + 38 3 + 10.1 Lake Erie Northeast 1971 1972 1973 _, 1974 1975 J 1971 1972 -17.4 1973 + 549 + 87.9 1974 + 11.6 + 77 8 + 01.1 1975 + 18.6 + 864 + 05.7 + 2.3 1971 1972 1973 1974 1975 __ ___ .___ 1971 1972 + 89 3 1973 + 53 2 -190 1974 +-34 7 -28 8 -1 20 1975 + 77 0 -6 4 -15 5 + 31 4 ------- Ohio River Tennessee River 1971 1972 ___ 1973 1974 1975 Pacific Northwest 1971 1973 + 44 1 55.4. 1974 -689 -82.1 -172 1975 *25.5 + 43.1 + 56.5 -33 5 1971 . 1972 1973 1974 1975 1971 1972 -178 1973 30 4 -10 7 1974 + 77 6 -507 -36 2 1975 -61.0 ,36 7 23.5 9.2 South Central Lower Mississippi 1971 1972 1973 . 1974 1975 ____ 1971 1972 -206 19 -7 - 1 72.0 16.8 1974 14 7 70.8 249 1975 204 "77 9 -282 -2 6 1971 1972 1973 1974 1975 Upper Mississippi 1971 1972 1973 1974 1975 Western Great Lakes 1971 1972 1973 1974 1975 1971 1972 -348 1973 + 55.8 39.3 1974 -1,8 + 56 3 -34.6 __~ 1975 + 48 4 .278 4.7 -45.8 1972 + 3.9 ,26.8 ,22.0 1974 76 3 -69.7 t39.1 1975 770 70.4 -397 -04 1971 1972 + 159 1973 -46.2 53.5 1974 3.3 16.6 -797 ~ 1975 -40 -17 2 -78.5 -0.6 Southeast Western Gulf 1971 1972 1973 1974 __. 1975 1971 1972 29 1 1973 -82 2 41 2 1974 -42 0 -87 5 -32 8 1975 -320 79 7 273 4 1 1971 1972 1973 1974 1975 1972 -71 5 1973 -65 7 -549 1974 + 11.5 + 81.6 -173 1975 + 92 7 + 70.6 10 2 5.9 ro ------- |