Comprehensive
Sabine Watershed Management Plan Report3.0 Existing Surface Water Supplies
4.0 Existing Ground Water Supplies
5.0 Comparison of Existing Supply and Projected Demand
6.0 Additional Supply from Water Conservation
7.0 Potential Surface Water Projects
8.0 Potential Ground Water Resources
9.0 Water and Wastewater Treatment Needs
10.0 Water Quality & Environmental Issues
11.0 Other Water Related Issues
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Click on a lake for the hydrologic data for that lake:
Lake Tawakoni
| LAKE
TAWAKONI OPERATION w/ new TWDB Area Capacity Data ADL 8/7/97 SUMMARY OF RUNOFF DATA (VALUES IN ACRE-FEET) |
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| YEAR | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | TOTAL |
| 1940 | 0. | 4500. | 5250. | 47830. | 21550. | 58460. | 28160. | 1400. | 12190. | 820. | 33350. | 133840. | 347350. |
| 1941 | 29860. | 31290. | 60800. | 26790. | 107890. | 148580. | 16730. | 10270. | 3660. | 4380. | 10500. | 29240. | 479990. |
| 1942 | 3720. | 19070. | 13690. | 258910. | 208870. | 49970. | 10. | 5080. | 6910. | 4890. | 10740. | 18660. | 600520. |
| 1943 | 21070. | 3240. | 15600. | 41060. | 19590. | 194300. | 91530. | 0. | 0. | 11620. | 210. | 5550. | 403770. |
| 1944 | 27360. | 51670. | 108630. | 27830. | 227790. | 49990. | 1870. | 0. | 1390. | 380. | 7650. | 54050. | 558610. |
| 1945 | 72170. | 36470. | 180080. | 430280. | 9550. | 65240. | 208620. | 2530. | 510. | 35050. | 13300. | 7320. | 1061120. |
| 1946 | 72220. | 136390. | 43460. | 26050. | 63340. | 199260. | 1880. | 2120. | 6360. | 1760. | 222610. | 48720. | 824170. |
| 1947 | 38590. | 4640. | 20760. | 56380. | 18310. | 11420. | 6640. | 560. | 13720. | 200. | 17890. | 77170. | 266280. |
| 1948 | 99570. | 52300. | 81340. | 6190. | 93760. | 2320. | 3090. | 980. | 0. | 0. | 750. | 1390. | 341690. |
| 1949 | 13330. | 73860. | 96140. | 17540. | 30900. | 19610. | 10680. | 5060. | 850. | 28340. | 34390. | 1830. | 332530. |
| 1950 | 68650. | 224020. | 20940. | 24480. | 127400. | 30690. | 4800. | 27910. | 15740. | 270. | 700. | 360. | 545960. |
| 1951 | 4250. | 26020. | 21510. | 1810. | 15120. | 55950. | 19000. | 0. | 0. | 100. | 390. | 760. | 144910. |
| 1952 | 1890. | 3210. | 9940. | 55810. | 112910. | 30860. | 100. | 0. | 0. | 0. | 590. | 25520. | 240830. |
| 1953 | 38850. | 2730. | 21580. | 19160. | 259900. | 0. | 9690. | 20. | 1100. | 0. | 2820. | 17650. | 373500. |
| 1954 | 48880. | 12270. | 1260. | 14560. | 22980. | 4550. | 0. | 0. | 0. | 1470. | 54140. | 2310. | 162420. |
| 1955 | 3100. | 23920. | 27990. | 31170. | 2470. | 830. | 580. | 1610. | 1790. | 0. | 0. | 140. | 93600. |
| 1956 | 580. | 13620. | 700. | 290. | 31350. | 0. | 0. | 0. | 0. | 0. | 3390. | 670. | 50600. |
| 1957 | 1570. | 17980. | 16840. | 169380. | 440460. | 89180. | 520. | 70. | 70. | 69020. | 122910. | 13310. | 941310. |
| 1958 | 49440. | 4390. | 47590. | 40660. | 334220. | 11610. | 21420. | 0. | 4900. | 2590. | 2660. | 2070. | 521550. |
| 1959 | 1440. | 37510. | 17610. | 45680. | 35240. | 3330. | 7110. | 13490. | 220. | 98000. | 24890. | 101660. | 386180. |
| 1960 | 67540. | 39120. | 9240. | 22830. | 18070. | 5230. | 24100. | 4900. | 4330. | 19290. | 920. | 174900. | 390470. |
| 1961 | 62580. | 36890. | 84990. | 3070. | 5740. | 20430. | 1910. | 1060. | 5140. | 1760. | 27480. | 50320. | 301370. |
| 1962 | 13240. | 17720. | 16770. | 83270. | 17220. | 64750. | 17560. | 3580. | 87380. | 29260. | 62660. | 4240. | 417650. |
| 1963 | 7160. | 1320. | 5160. | 70210. | 63210. | 1820. | 27370. | 1920. | 1600. | 1880. | 1070. | 1150. | 183870. |
| 1964 | 1290. | 1340. | 25270. | 22810. | 49830. | 14230. | 870. | 2530. | 56090. | 1300. | 51210. | 2380. | 229150. |
| 1965 | 32690. | 151730. | 13750. | 3190. | 211890. | 3570. | 2450. | 2150. | 7190. | 1440. | 2720. | 1590. | 434360. |
| 1966 | 2750. | 36300. | 7280. | 316800. | 60970. | 3520. | 3000. | 5750. | 6890. | 11440. | 1400. | 1780. | 457880. |
| 1967 | 1510. | 1210. | 2750. | 48330. | 138990. | 19570. | 2670. | 1950. | 41170. | 106190. | 20560. | 55560. | 440460. |
| 1968 | 69770. | 24090. | 152650. | 49510. | 192120. | 39150. | 35310. | 3730. | 9520. | 4400. | 13740. | 24530. | 618520. |
| 1969 | 66300. | 68110. | 99010. | 25360. | 227660. | 1930. | 1910. | 1900. | 1390. | 10170. | 1480. | 46910. | 552130. |
| 1970 | 6860. | 132190. | 128850. | 80840. | 22790. | 12810. | 1760. | 4840. | 46730. | 75210. | 1640. | 1430. | 515950. |
| 1971 | 240. | 7830. | 2610. | 0. | 330. | 0. | 1490. | 18320. | 4480. | 238560. | 970. | 306470. | 581300. |
| 1972 | 10110. | 980. | 590. | 3570. | 460. | 460. | 220. | 290. | 360. | 4320. | 17640. | 8050. | 47050. |
| 1973 | 47070. | 58020. | 49590. | 143760. | 20140. | 147470. | 13450. | 2120. | 116930. | 244210. | 72150. | 52390. | 967300. |
| 1974 | 124650. | 5740. | 18530. | 113230. | 24740. | 107210. | 2280. | 32680. | 176980. | 59300. | 126810. | 41600. | 833750. |
| 1975 | 27920. | 152290. | 25090. | 43780. | 100530. | 71030. | 12540. | 1860. | 1890. | 1930. | 1650. | 1690. | 442200. |
| 1976 | 1730. | 1690. | 15170. | 117030. | 73230. | 9770. | 41890. | 2220. | 2310. | 19020. | 2150. | 54650. | 340860. |
| 1977 | 22160. | 103940. | 286780. | 107750. | 9750. | 2970. | 2030. | 30650. | 2530. | 1430. | 14590. | 3960. | 588540. |
| 1978 | 10410. | 70950. | 29920. | 3970. | 9160. | 30300. | 3440. | 2710. | 2230. | 1900. | 3150. | 15190. | 183330. |
| 1979 | 125330. | 63450. | 207470. | 17730. | 341020. | 64230. | 5810. | 8780. | 7660. | 2170. | 1820. | 41010. | 886480. |
| 1980 | 109000. | 41660. | 1890. | 11230. | 44010. | 2880. | 2550. | 2570. | 13730. | 3910. | 1680. | 33460. | 268570. |
| AVG. | 34313. | 43797. | 48660. | 64150. | 93060. | 40231. | 15538. | 5064. | 16242. | 26780. | 24180. | 35743. | 447758. |
| LAKE
TAWAKONI OPERATION w/ new TWDB Area Capacity Data ADL 8/7/97 SUMMARY OF NET EVAPORATION DATA (VALUES IN FEET) |
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| YEAR | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | TOTAL |
| 1940 | .07 | .00 | .21 | .01 | .08 | .13 | .35 | .49 | .50 | .29 | -.27 | -.09 | 1.77 |
| 1941 | .08 | -.05 | .05 | -.06 | .17 | -.12 | .34 | .40 | .37 | .04 | .14 | .01 | 1.37 |
| 1942 | .10 | .13 | .18 | -.39 | .14 | .16 | .54 | .34 | .22 | .17 | .16 | -.06 | 1.69 |
| 1943 | .09 | .22 | .03 | .24 | -.04 | .25 | .57 | .72 | .31 | .16 | .23 | -.05 | 2.73 |
| 1944 | -.06 | -.14 | .03 | .13 | -.24 | .44 | .50 | .45 | .43 | .35 | -.06 | -.15 | 1.68 |
| 1945 | .03 | -.18 | -.46 | .08 | .27 | .07 | .14 | .37 | .37 | .09 | .19 | .12 | 1.09 |
| 1946 | -.14 | -.02 | .04 | .08 | -.22 | .32 | .56 | .28 | .30 | .29 | -.33 | .04 | 1.20 |
| 1947 | -.01 | .15 | .02 | -.04 | .16 | .27 | .64 | .43 | .40 | .31 | .06 | -.14 | 2.25 |
| 1948 | -.05 | -.10 | .05 | .26 | -.07 | .44 | .51 | .66 | .60 | .32 | .19 | .08 | 2.89 |
| 1949 | -.35 | -.11 | .03 | -.02 | .16 | .28 | .37 | .42 | .37 | -.25 | .29 | -.01 | 1.18 |
| 1950 | -.19 | -.23 | .22 | -.03 | -.12 | .32 | .10 | .39 | .07 | .33 | .31 | .22 | 1.39 |
| 1951 | .06 | -.12 | .21 | .21 | .21 | .03 | .50 | .70 | .07 | .23 | .16 | .09 | 2.35 |
| 1952 | .11 | .04 | .04 | -.19 | .05 | .47 | .50 | .83 | .67 | .59 | -.16 | -.12 | 2.83 |
| 1953 | .10 | .06 | -.03 | -.10 | .00 | .60 | .22 | .41 | .38 | .25 | .04 | -.02 | 1.91 |
| 1954 | -.08 | .20 | .24 | .07 | -.08 | .47 | .85 | .89 | .63 | -.04 | .15 | .14 | 3.44 |
| 1955 | .07 | -.08 | .06 | .06 | .12 | .38 | .47 | .17 | .19 | .45 | .37 | .16 | 2.42 |
| 1956 | .05 | -.11 | .29 | .20 | .21 | .45 | .86 | .84 | .71 | .37 | .14 | .13 | 4.14 |
| 1957 | .05 | -.01 | -.08 | -.62 | -.25 | .17 | .56 | .34 | .17 | .03 | -.19 | .12 | .29 |
| 1958 | .00 | .11 | -.02 | -.18 | .09 | .29 | .40 | .40 | .00 | .24 | .15 | .14 | 1.62 |
| 1959 | .21 | -.02 | .18 | .06 | -.01 | .01 | .13 | .40 | .32 | -.02 | .27 | -.12 | 1.41 |
| 1960 | -.06 | .02 | .12 | .23 | .27 | .19 | .30 | .30 | .30 | .11 | .17 | -.36 | 1.59 |
| 1961 | -.08 | -.03 | -.05 | .28 | .19 | -.01 | .34 | .50 | .26 | .30 | -.05 | .00 | 1.65 |
| 1962 | .01 | .03 | .14 | -.04 | .34 | -.05 | .33 | .54 | -.02 | .06 | .02 | .12 | 1.48 |
| 1963 | .11 | .15 | .11 | -.11 | .11 | .34 | .43 | .66 | .45 | .58 | .26 | .08 | 3.17 |
| 1964 | .13 | .05 | -.02 | .03 | .07 | .37 | .74 | .45 | .03 | .41 | .02 | .12 | 2.40 |
| 1965 | .04 | -.20 | .06 | .23 | -.32 | .25 | .63 | .55 | .14 | .29 | .07 | .04 | 1.78 |
| 1966 | .00 | -.04 | .13 | -.20 | .09 | .35 | .41 | .22 | .03 | .28 | .24 | .10 | 1.61 |
| 1967 | .12 | .08 | .16 | -.10 | -.06 | .39 | .30 | .43 | .03 | .13 | .13 | .03 | 1.64 |
| 1968 | .01 | .04 | -.02 | .00 | -.02 | .22 | .30 | .54 | .19 | .25 | .14 | .11 | 1.76 |
| 1969 | .00 | -.02 | .02 | -.02 | -.22 | .36 | .66 | .52 | .28 | .28 | .19 | .02 | 2.07 |
| 1970 | .05 | -.10 | -.03 | -.17 | .05 | .41 | .60 | .57 | .15 | .10 | .23 | .06 | 1.92 |
| 1971 | .18 | .05 | .27 | .25 | .25 | .56 | .45 | .26 | .32 | .07 | .16 | -.12 | 2.70 |
| 1972 | .01 | .18 | .26 | .21 | .34 | .36 | .56 | .53 | .28 | .16 | .00 | .03 | 2.92 |
| 1973 | -.08 | -.02 | .05 | -.03 | .27 | .17 | .33 | .59 | .10 | .08 | .07 | .12 | 1.65 |
| 1974 | -.08 | .15 | .22 | .22 | .22 | .31 | .65 | .27 | .00 | .12 | .00 | -.01 | 2.07 |
| 1975 | .02 | -.04 | .03 | .10 | .09 | .28 | .43 | .55 | .44 | .42 | .21 | .06 | 2.59 |
| 1976 | .18 | .21 | .10 | .06 | .12 | .28 | .26 | .55 | .12 | .09 | .16 | .04 | 2.17 |
| 1977 | -.08 | .04 | .09 | .12 | .32 | .43 | .66 | .43 | .44 | .39 | .07 | .20 | 3.11 |
| 1978 | -.05 | -.07 | .12 | .26 | .19 | .47 | .77 | .59 | .37 | .49 | -.03 | .05 | 3.16 |
| 1979 | -.09 | -.05 | .06 | .13 | .14 | .40 | .39 | .38 | .33 | .36 | .21 | .01 | 2.27 |
| 1980 | -.04 | .07 | .18 | .18 | .19 | .49 | .83 | .80 | .43 | .33 | .16 | .07 | 3.69 |
| AVG. | .01 | .01 | .08 | .03 | .08 | .29 | .48 | .49 | .29 | .23 | .10 | .03 | 2.12 |
| LAKE
TAWAKONI OPERATION w/ new TWDB Area Capacity Data ADL 8/7/97 There are 63 Area/Capacity/Elevation points. |
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| AREA
(ACRES) |
CAPACITY
(ACRE-FEET) |
ELEVATION
(FEET) |
| 0. | 0. | 373.0 |
| 1. | 1. | 374.0 |
| 2. | 2. | 375.0 |
| 3. | 5. | 376.0 |
| 4. | 9. | 377.0 |
| 6. | 14. | 378.0 |
| 8. | 21. | 379.0 |
| 11. | 31. | 380.0 |
| 14. | 43. | 381.0 |
| 22. | 61. | 382.0 |
| 50. | 94. | 383.0 |
| 169. | 197. | 384.0 |
| 434. | 476. | 385.0 |
| 797. | 1097. | 386.0 |