Rainfall during Ground Water Assessment Year 2023-24 for Assam and District wise:
District | District wise Actual rainfall in mm | ||||||||||||||
For the calendar year 2023 | For the calendar year 2024 | ||||||||||||||
Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Jan | Feb | Mar | |
Baksa | 0 | 21.03 | 92.79 | 167.85 | 136.84 | 780.34 | 232.06 | 499.63 | 112.30 | 77.06 | 2.72 | 3.79 | 0.13 | 15.10 | 9.86 |
Barpeta | 0 | 11.2 | 94.51 | 185.50 | 152.28 | 668.98 | 243.98 | 489.08 | 147.40 | 126.48 | 1.09 | 2.75 | 1.55 | 7.14 | 6.32 |
Bongaigaon | 0 | 16.61 | 97.01 | 182.94 | 167.30 | 903.25 | 377.36 | 808.81 | 314.75 | 224.85 | 0.53 | 3.84 | 0.00 | 4.13 | 1.94 |
Cachar | 0 | 2.85 | 72.72 | 137.86 | 134.49 | 430.83 | 367.35 | 431.24 | 213.78 | 48.17 | 42.75 | 33.65 | 0.00 | 81.67 | 4.63 |
Chirang | 0 | 15.74 | 101.68 | 160.75 | 174.05 | 987.04 | 391.18 | 782.06 | 267.35 | 177.54 | 0.99 | 3.37 | 2.83 | 7.75 | 6.02 |
Darrang | 0 | 22.67 | 74.37 | 88.17 | 119.94 | 402.27 | 284.31 | 313.56 | 104.70 | 121.53 | 1.75 | 4.63 | 0.95 | 17.40 | 5.27 |
Dhemaji | 5.38 | 100 | 140.54 | 169.51 | 217.98 | 385.62 | 458.40 | 405.60 | 180.65 | 137.06 | 11.42 | 15.72 | 6.04 | 75.86 | 22.20 |
Dhubri | 0 | 6.2 | 118.44 | 95.35 | 198.83 | 825.89 | 331.13 | 471.19 | 263.01 | 129.96 | 4.97 | 11.94 | 0.06 | 2.78 | 10.25 |
Dibrugarh | 2.61 | 99.11 | 151.95 | 185.73 | 184.26 | 379.87 | 340.99 | 373.85 | 205.77 | 150.40 | 9.54 | 18.07 | 6.31 | 73.71 | 16.79 |
Dima Hasao | 0 | 4.21 | 65.89 | 87.51 | 108.16 | 361.53 | 238.78 | 233.04 | 85.83 | 55.17 | 32.53 | 33.68 | 0.17 | 56.33 | 4.24 |
Goalpara | 0 | 9.45 | 115.39 | 127.39 | 160.85 | 781.15 | 268.31 | 501.40 | 282.98 | 164.89 | 1.76 | 5.13 | 1.45 | 10.28 | 6.16 |
Golaghat | 0.05 | 21.98 | 73.82 | 99.68 | 174.43 | 364.28 | 308.38 | 288.79 | 183.41 | 125.20 | 23.37 | 34.26 | 0.68 | 30.61 | 0.73 |
Hailakandi | 0 | 0.67 | 79.3 | 163.38 | 149.63 | 426.62 | 385.29 | 432.14 | 287.60 | 69.90 | 80.97 | 38.02 | 0.00 | 86.30 | 1.94 |
Jorhat | 1.7 | 43.48 | 102.44 | 122.56 | 206.93 | 355.39 | 362.84 | 345.59 | 198.95 | 143.60 | 18.08 | 28.64 | 2.42 | 36.36 | 2.45 |
Kamrup | 0 | 5.25 | 110.98 | 93.24 | 125.03 | 426.79 | 291.28 | 259.78 | 130.63 | 163.15 | 2.01 | 9.88 | 4.02 | 8.30 | 3.68 |
Kamrup Metropolitan | 0 | 4.14 | 79.67 | 64.31 | 108.74 | 298.12 | 321.36 | 221.37 | 123.16 | 150.38 | 3.84 | 12.45 | 1.47 | 3.96 | 0.84 |
Karbi Anglong | 0.01 | 6.64 | 58.87 | 55.59 | 146.29 | 253.26 | 180.46 | 177.14 | 137.42 | 73.02 | 25.84 | 26.01 | 0.51 | 27.58 | 1.40 |
Karimganj | 0.22 | 3.11 | 73.88 | 174.66 | 180.64 | 528.64 | 365.09 | 408.75 | 237.17 | 82.06 | 81.42 | 35.08 | 0.00 | 89.58 | 1.92 |
Kakrajhar | 0 | 21.31 | 101.7 | 146.72 | 171.27 | 1241.66 | 361.83 | 560.02 | 346.37 | 170.39 | 0.14 | 6.80 | 0.58 | 3.86 | 8.00 |
Lakhimpur | 5.1 | 62.7 | 120.03 | 152.09 | 242.00 | 422.22 | 546.49 | 371.15 | 187.41 | 168.78 | 18.09 | 18.03 | 3.66 | 70.72 | 14.83 |
Marigaon | 0 | 29.7 | 79.98 | 84.89 | 154.01 | 318.34 | 301.65 | 252.05 | 127.95 | 95.09 | 4.50 | 5.81 | 1.18 | 28.53 | 6.29 |
Nagaon | 0 | 18.43 | 78.05 | 64.88 | 158.16 | 302.05 | 220.66 | 188.85 | 100.36 | 87.14 | 18.33 | 17.93 | 0.64 | 22.05 | 2.78 |
Nalbari | 0 | 4.56 | 77.82 | 112.15 | 117.67 | 483.83 | 165.52 | 293.09 | 92.39 | 107.23 | 0.36 | 3.00 | 1.61 | 8.14 | 4.13 |
Sivasagar | 2.84 | 81.72 | 144.9 | 194.29 | 201.74 | 388.80 | 359.79 | 356.75 | 233.65 | 153.56 | 12.81 | 19.76 | 5.33 | 59.74 | 9.85 |
Sonitpur | 0.51 | 42.08 | 90.95 | 99.14 | 230.29 | 497.21 | 441.91 | 312.56 | 118.44 | 177.59 | 10.57 | 10.37 | 2.82 | 18.47 | 5.73 |
Tinsukia | 2.39 | 95.36 | 128.52 | 165.84 | 180.07 | 394.99 | 426.53 | 390.84 | 156.74 | 122.87 | 9.90 | 22.11 | 14.18 | 80.40 | 21.90 |
Udalguri | 0 | 27.6 | 67.11 | 120.35 | 141.43 | 492.55 | 246.77 | 383.78 | 76.72 | 96.56 | 1.31 | 5.60 | 1.13 | 11.12 | 7.09 |
Average | 0.77 | 28.81 | 96.05 | 129.72 | 164.57 | 522.28 | 326.66 | 390.82 | 182.11 | 125.91 | 15.61 | 15.94 | 2.21 | 34.74 | 6.93 |
Contd.
District | Annual rainfall in calendar year 2023 | Rainfall during Assessment year 2023-24 | Monsoon rainfall in Assessment year 2023-24 | Non-monsoon rainfall in Assessment year 2023-24 |
Baksa | 2126.41 | 2037.68 | 1701.39 | 336.29 |
Barpeta | 2123.25 | 2032.55 | 1675.92 | 356.63 |
Bongaigaon | 3097.25 | 2989.70 | 2629.02 | 360.68 |
Cachar | 1915.69 | 1926.42 | 1491.37 | 435.05 |
Chirang | 3061.75 | 2960.93 | 2605.17 | 355.76 |
Darrang | 1537.90 | 1464.48 | 1226.37 | 238.11 |
Dhemaji | 2227.88 | 2086.06 | 1567.33 | 518.73 |
Dhubri | 2456.91 | 2345.36 | 2021.18 | 324.18 |
Dibrugarh | 2102.15 | 1945.29 | 1450.88 | 494.41 |
Dima Hasao | 1306.33 | 1296.97 | 974.35 | 322.62 |
Goalpara | 2418.70 | 2311.75 | 1998.73 | 313.02 |
Golaghat | 1697.65 | 1633.82 | 1270.06 | 363.76 |
Hailakandi | 2113.52 | 2121.79 | 1601.55 | 520.24 |
Jorhat | 1930.20 | 1823.81 | 1406.37 | 417.44 |
Kamrup | 1618.02 | 1517.79 | 1271.63 | 246.16 |
Kamrup Metropolitan | 1387.54 | 1310.00 | 1114.39 | 195.61 |
Karbi Anglong | 1140.55 | 1104.52 | 821.30 | 283.22 |
Karimganj | 2170.72 | 2185.01 | 1621.71 | 563.30 |
Kakrajhar | 3128.21 | 3017.64 | 2680.27 | 337.37 |
Lakhimpur | 2314.09 | 2215.47 | 1696.05 | 519.42 |
Marigaon | 1453.97 | 1380.29 | 1095.08 | 285.21 |
Nagaon | 1254.84 | 1183.83 | 899.06 | 284.77 |
Nalbari | 1457.62 | 1389.12 | 1142.06 | 247.06 |
Sivasagar | 2150.61 | 1996.07 | 1492.55 | 503.52 |
Sonitpur | 2031.62 | 1925.10 | 1547.71 | 377.39 |
Tinsukia | 2096.16 | 1986.37 | 1491.97 | 494.40 |
Udalguri | 1659.78 | 1584.41 | 1296.38 | 288.03 |
Average | 2043.12 | 1917.49 | 1547.77 | 369.72 |
Source: Dynamic Ground Water Resources of Assam, 2024
District-wise Annual Ground Water Recharge in Assam, 2024:
Name of District | Annual Ground Water Recharge | ||||
Monsoon Season | Non-Monsoon Season | Annual Ground Water Recharge | |||
Recharge from rainfall | Recharge from other Sources | Recharge from Rainfall | Recharge from other Sources | ||
Baksa | 108627.73 | 4189.1 | 27266.79 | 6269.21 | 146352.83 |
Barpeta | 59076.65 | 5225.43 | 22901.18 | 3527.78 | 90731.04 |
Bongaigaon | 37424.13 | 2572.17 | 12847.54 | 2897.03 | 55740.87 |
Cachar | 64341.73 | 2250.95 | 23182.18 | 2896.86 | 92671.72 |
Chirang | 83302.01 | 413.42 | 25347.61 | 138.24 | 109201.28 |
Darrang | 41118.91 | 1500.03 | 14212.77 | 1052.21 | 57883.92 |
Dhemaji | 105039.67 | 302.56 | 38007 | 67.08 | 143416.31 |
Dhubri | 82305.99 | 4417.11 | 18117.49 | 5033.08 | 109873.67 |
Dibrugarh | 108809.42 | 2133.21 | 37792.02 | 1121.99 | 149856.64 |
Dima Hasao | 43723.76 | 144.95 | 19071.65 | 18.92 | 62959.28 |
Goalpara | 57216.7 | 2096.57 | 19326 | 2265.11 | 80904.38 |
Golaghat | 77427.93 | 1421.46 | 29903.35 | 856.9 | 109609.64 |
Hailakandi | 19091.47 | 1478.02 | 9513.41 | 340.65 | 30423.55 |
Jorhat | 80772.65 | 8154.45 | 32140.71 | 8577.14 | 129644.95 |
Kamrup | 62608.7 | 2015.27 | 22462.15 | 1392.37 | 88478.49 |
Kamrup (M) | 13360.41 | 7622.67 | 7023.53 | 1780.58 | 29787.19 |
Karbi Anglong | 105907.62 | 491.96 | 26988.64 | 107.63 | 133495.85 |
Karimganj | 40446.37 | 1096.05 | 19365.36 | 281.84 | 61189.62 |
Kokrajhar | 136436.66 | 1938.75 | 42129.04 | 1587.37 | 182091.82 |
Lakhimpur | 86992.59 | 788.66 | 30085.16 | 204.89 | 118071.3 |
Morigaon | 35858.02 | 2545.89 | 8474.76 | 2162.5 | 49041.17 |
Nagaon | 99592.56 | 8444.24 | 21452.74 | 10350.12 | 139839.66 |
Nalbari | 23855.97 | 155.72 | 8849.97 | 43.15 | 32904.81 |
Sibsagar | 78656.97 | 603.47 | 32055.39 | 187.06 | 111502.89 |
Sonitpur | 131621.88 | 1919.6 | 42220.16 | 1035.05 | 176796.69 |
Tinsukia | 111830.01 | 2578.92 | 40135.93 | 1772.98 | 156317.84 |
Udalguri | 49340.16 | 732.15 | 22147.2 | 126.3 | 72345.81 |
Total(Ham) | 1944786.67 | 67232.78 | 653019.73 | 56094.04 | 2721133.22 |
Total(Bcm) | 19.45 | 0.67 | 6.53 | 0.56 | 27.21 |
Source: Dynamic Ground Water Resources of Assam, 2024
District-wise annual extractable ground water recharge in Assam, 2024:
Name of District | Total Annual Ground Water Recharge | Total Natural Discharges | Annual Extractable Ground Water Resource |
Baksa | 146352.83 | 17058.02 | 129294.81 |
Barpeta | 90731.04 | 13518.91 | 77212.13 |
Bongaigaon | 55740.87 | 9798.71 | 45942.16 |
Cachar | 92671.72 | 48580.12 | 44091.6 |
Chirang | 109201.28 | 12691.64 | 96509.64 |
Darrang | 57883.92 | 5637.81 | 52246.11 |
Dhemaji | 143416.31 | 46560.16 | 96856.15 |
Dhubri | 109873.67 | 11413.48 | 98460.19 |
Dibrugarh | 149856.64 | 26396.73 | 123459.91 |
Dima Hasao | 62959.28 | 6295.92 | 56663.36 |
Goalpara | 80904.38 | 22460.57 | 58443.81 |
Golaghat | 109609.64 | 12614.02 | 96995.62 |
Hailakandi | 30423.55 | 9547.58 | 20875.97 |
Jorhat | 129644.95 | 72131.21 | 57513.74 |
Kamrup | 88478.49 | 20531.34 | 67947.15 |
Kamrup (M) | 29787.19 | 6418.72 | 23368.47 |
Karbi Anglong | 133495.85 | 26267.54 | 107228.31 |
Karimganj | 61189.62 | 29068.88 | 32120.74 |
Kokrajhar | 182091.82 | 24223.33 | 157868.49 |
Lakhimpur | 118071.3 | 46520.36 | 71550.94 |
Morigaon | 49041.17 | 11427.75 | 37613.42 |
Nagaon | 139839.66 | 39706.69 | 100132.97 |
Nalbari | 32904.81 | 3290.49 | 29614.32 |
Sibsagar | 111502.89 | 17066.36 | 94436.53 |
Sonitpur | 176796.69 | 41902.32 | 134894.37 |
Tinsukia | 156317.84 | 27820.9 | 128496.94 |
Udalguri | 72345.81 | 23052.83 | 49292.98 |
Total(Ham) | 2721133.22 | 632002.39 | 2089130.83 |
Total(Bcm) | 27.21 | 6.32 | 20.89 |
Source: Dynamic Ground Water Resources of Assam, 2024
District-wise Annual Total Ground Water Extraction in Assam:
Name of District | Current Annual Ground Water Extraction | |||
Irrigation | Industrial | Domestic | Total | |
Baksa | 2555.28 | 3.16 | 1995.31 | 4553.76 |
Barpeta | 24373.44 | 14.35 | 3990.62 | 28378.4 |
Bongaigaon | 10153.92 | 6.8 | 1675.55 | 11836.27 |
Cachar | 1.68 | 30.77 | 1413.36 | 1445.78 |
Chirang | 1518.72 | 4.82 | 946.19 | 2469.7 |
Darrang | 15523.2 | 56.52 | 2113.2 | 17692.92 |
Dhemaji | 3089.52 | 7.07 | 1510.12 | 4606.73 |
Dhubri | 23600.64 | 28.3 | 4664.78 | 28293.72 |
Dibrugarh | 5633.04 | 84.34 | 2689.97 | 8407.33 |
Dima Hasao | 336 | 1.19 | 236.38 | 573.55 |
Goalpara | 9972.48 | 47.29 | 2453.01 | 12472.77 |
Golaghat | 3833.76 | 117.15 | 1994.85 | 5945.79 |
Hailakandi | 5.04 | 0 | 536.22 | 541.26 |
Jorhat | 5722.08 | 28.04 | 1388.05 | 7138.18 |
Kamrup | 20233.92 | 282.7 | 3545.51 | 24062.15 |
Kamrup (M) | 1533.84 | 159.29 | 3615.69 | 5308.8 |
Karbi Anglong | 1058.4 | 32.98 | 1947.07 | 3038.47 |
Karimganj | 85.68 | 4.19 | 1325.94 | 1415.81 |
Kokrajhar | 6328.56 | 0 | 1730.24 | 8058.83 |
Lakhimpur | 4480.56 | 11.57 | 2433.85 | 6925.99 |
Morigaon | 10822.56 | 14.75 | 2320.45 | 13157.78 |
Nagaon | 27137.04 | 98.73 | 1805.12 | 29040.85 |
Nalbari | 7479.36 | 36.9 | 398.28 | 7914.57 |
Sibsagar | 2721.6 | 72.06 | 1759.44 | 4553.11 |
Sonitpur | 8942.64 | 104.12 | 4011.17 | 13057.93 |
Tinsukia | 4331.04 | 68.68 | 2070 | 6469.76 |
Udalguri | 4569.6 | 62.68 | 1528.69 | 6160.97 |
Total(Ham) | 206043.6 | 1378.45 | 56099.08 | 263521.18 |
Total(Bcm) | 2.06 | 0.01 | 0.56 | 2.64 |
Source: Dynamic Ground Water Resources of Assam, 2024
District-wise Stage of Ground Water Extraction in Assam:
Name of District | Annual GW Allocation for Domestic use as on 2025 | Net Ground Water Availability for future use | Stage of Ground Water Extraction (%) |
Baksa | 2042.59 | 124693.76 | 3.52 |
Barpeta | 4218.97 | 48605.37 | 36.75 |
Bongaigaon | 1766.22 | 34015.23 | 25.76 |
Cachar | 1487.81 | 42571.4 | 3.28 |
Chirang | 970.07 | 94016.07 | 2.56 |
Darrang | 2240.22 | 34426.18 | 33.86 |
Dhemaji | 1588.46 | 92171.08 | 4.76 |
Dhubri | 4986.54 | 69844.71 | 28.74 |
Dibrugarh | 2761.88 | 114980.67 | 6.81 |
Dima Hasao | 243.95 | 56082.24 | 1.01 |
Goalpara | 2604.68 | 45819.38 | 21.34 |
Golaghat | 2052.65 | 90992.02 | 6.13 |
Hailakandi | 566.95 | 20303.98 | 2.59 |
Jorhat | 1416.15 | 50347.46 | 12.41 |
Kamrup | 3696.96 | 43733.55 | 35.41 |
Kamrup (M) | 3639.11 | 18036.25 | 22.72 |
Karbi Anglong | 2032.03 | 104104.88 | 2.83 |
Karimganj | 1404.17 | 30626.7 | 4.41 |
Kokrajhar | 1750.75 | 149789.15 | 5.1 |
Lakhimpur | 2537.18 | 64521.62 | 9.68 |
Morigaon | 2470.27 | 24305.82 | 34.98 |
Nagaon | 1912.31 | 70984.95 | 29 |
Nalbari | 409 | 21689.03 | 26.73 |
Sibsagar | 1795.6 | 89847.27 | 4.82 |
Sonitpur | 4160.16 | 121687.45 | 9.68 |
Tinsukia | 2146.38 | 121950.81 | 5.03 |
Udalguri | 1560.71 | 43099.99 | 12.5 |
Total(Ham) | 58461.77 | 1823247.02 | 12.61 |
Total(Bcm) | 0.58 | 18.23 | 12.61 |
Source: Dynamic Ground Water Resources of Assam, 2024
District-wise ground water resources availability, utilization and stage of extraction (as in 2024):
Name of District | Ground Water Recharge | Total Natural Discharges | Annual Extractable Ground Water Resource | ||||
Monsoon Season | Non-Monsoon Season | Total Annual Ground Water Recharge | |||||
Recharge from rainfall | Recharge from other Sources | Recharge from Rainfall | Recharge from other Sources | ||||
Baksa | 108627.73 | 4189.1 | 27266.79 | 6269.21 | 146352.83 | 17058.02 | 129294.81 |
Barpeta | 59076.65 | 5225.43 | 22901.18 | 3527.78 | 90731.04 | 13518.91 | 77212.13 |
Bongaigaon | 37424.13 | 2572.17 | 12847.54 | 2897.03 | 55740.87 | 9798.71 | 45942.16 |
Cachar | 64341.73 | 2250.95 | 23182.18 | 2896.86 | 92671.72 | 48580.12 | 44091.6 |
Chirang | 83302.01 | 413.42 | 25347.61 | 138.24 | 109201.28 | 12691.64 | 96509.64 |
Darrang | 41118.91 | 1500.03 | 14212.77 | 1052.21 | 57883.92 | 5637.81 | 52246.11 |
Dhemaji | 105039.67 | 302.56 | 38007 | 67.08 | 143416.31 | 46560.16 | 96856.15 |
Dhubri | 82305.99 | 4417.11 | 18117.49 | 5033.08 | 109873.67 | 11413.48 | 98460.19 |
Dibrugarh | 108809.42 | 2133.21 | 37792.02 | 1121.99 | 149856.64 | 26396.73 | 123459.91 |
Dima Hasao | 43723.76 | 144.95 | 19071.65 | 18.92 | 62959.28 | 6295.92 | 56663.36 |
Goalpara | 57216.7 | 2096.57 | 19326 | 2265.11 | 80904.38 | 22460.57 | 58443.81 |
Golaghat | 77427.93 | 1421.46 | 29903.35 | 856.9 | 109609.64 | 12614.02 | 96995.62 |
Hailakandi | 19091.47 | 1478.02 | 9513.41 | 340.65 | 30423.55 | 9547.58 | 20875.97 |
Jorhat | 80772.65 | 8154.45 | 32140.71 | 8577.14 | 129644.95 | 72131.21 | 57513.74 |
Kamrup | 62608.7 | 2015.27 | 22462.15 | 1392.37 | 88478.49 | 20531.34 | 67947.15 |
Kamrup (M) | 13360.41 | 7622.67 | 7023.53 | 1780.58 | 29787.19 | 6418.72 | 23368.47 |
Karbi Anglong | 105907.62 | 491.96 | 26988.64 | 107.63 | 133495.85 | 26267.54 | 107228.31 |
Karimganj | 40446.37 | 1096.05 | 19365.36 | 281.84 | 61189.62 | 29068.88 | 32120.74 |
Kokrajhar | 136436.66 | 1938.75 | 42129.04 | 1587.37 | 182091.82 | 24223.33 | 157868.49 |
Lakhimpur | 86992.59 | 788.66 | 30085.16 | 204.89 | 118071.3 | 46520.36 | 71550.94 |
Morigaon | 35858.02 | 2545.89 | 8474.76 | 2162.5 | 49041.17 | 11427.75 | 37613.42 |
Nagaon | 99592.56 | 8444.24 | 21452.74 | 10350.12 | 139839.66 | 39706.69 | 100132.97 |
Nalbari | 23855.97 | 155.72 | 8849.97 | 43.15 | 32904.81 | 3290.49 | 29614.32 |
Sibsagar | 78656.97 | 603.47 | 32055.39 | 187.06 | 111502.89 | 17066.36 | 94436.53 |
Sonitpur | 131621.88 | 1919.6 | 42220.16 | 1035.05 | 176796.69 | 41902.32 | 134894.37 |
Tinsukia | 111830.01 | 2578.92 | 40135.93 | 1772.98 | 156317.84 | 27820.9 | 128496.94 |
Udalguri | 49340.16 | 732.15 | 22147.2 | 126.3 | 72345.81 | 23052.83 | 49292.98 |
Total(Ham) | 1944786.67 | 67232.78 | 653019.73 | 56094.04 | 2721133.22 | 632002.39 | 2089130.83 |
Total(Bcm) | 19.45 | 0.67 | 6.53 | 0.56 | 27.21 | 6.32 | 20.89 |
Contd.
Name of District | Current Annual Ground Water Extraction | Annual GW Allocation for Domestic use as on 2025 | Net Ground Water Availability for future use | Stage of Ground Water Extraction (%) | |||
Irrigation | Industrial | Domestic | Total | ||||
Baksa | 2555.28 | 3.16 | 1995.31 | 4553.76 | 2042.59 | 124693.76 | 3.52 |
Barpeta | 24373.44 | 14.35 | 3990.62 | 28378.4 | 4218.97 | 48605.37 | 36.75 |
Bongaigaon | 10153.92 | 6.8 | 1675.55 | 11836.27 | 1766.22 | 34015.23 | 25.76 |
Cachar | 1.68 | 30.77 | 1413.36 | 1445.78 | 1487.81 | 42571.4 | 3.28 |
Chirang | 1518.72 | 4.82 | 946.19 | 2469.7 | 970.07 | 94016.07 | 2.56 |
Darrang | 15523.2 | 56.52 | 2113.2 | 17692.92 | 2240.22 | 34426.18 | 33.86 |
Dhemaji | 3089.52 | 7.07 | 1510.12 | 4606.73 | 1588.46 | 92171.08 | 4.76 |
Dhubri | 23600.64 | 28.3 | 4664.78 | 28293.72 | 4986.54 | 69844.71 | 28.74 |
Dibrugarh | 5633.04 | 84.34 | 2689.97 | 8407.33 | 2761.88 | 114980.67 | 6.81 |
Dima Hasao | 336 | 1.19 | 236.38 | 573.55 | 243.95 | 56082.24 | 1.01 |
Goalpara | 9972.48 | 47.29 | 2453.01 | 12472.77 | 2604.68 | 45819.38 | 21.34 |
Golaghat | 3833.76 | 117.15 | 1994.85 | 5945.79 | 2052.65 | 90992.02 | 6.13 |
Hailakandi | 5.04 | 0 | 536.22 | 541.26 | 566.95 | 20303.98 | 2.59 |
Jorhat | 5722.08 | 28.04 | 1388.05 | 7138.18 | 1416.15 | 50347.46 | 12.41 |
Kamrup | 20233.92 | 282.7 | 3545.51 | 24062.15 | 3696.96 | 43733.55 | 35.41 |
Kamrup (M) | 1533.84 | 159.29 | 3615.69 | 5308.8 | 3639.11 | 18036.25 | 22.72 |
Karbi Anglong | 1058.4 | 32.98 | 1947.07 | 3038.47 | 2032.03 | 104104.88 | 2.83 |
Karimganj | 85.68 | 4.19 | 1325.94 | 1415.81 | 1404.17 | 30626.7 | 4.41 |
Kokrajhar | 6328.56 | 0 | 1730.24 | 8058.83 | 1750.75 | 149789.15 | 5.1 |
Lakhimpur | 4480.56 | 11.57 | 2433.85 | 6925.99 | 2537.18 | 64521.62 | 9.68 |
Morigaon | 10822.56 | 14.75 | 2320.45 | 13157.78 | 2470.27 | 24305.82 | 34.98 |
Nagaon | 27137.04 | 98.73 | 1805.12 | 29040.85 | 1912.31 | 70984.95 | 29 |
Nalbari | 7479.36 | 36.9 | 398.28 | 7914.57 | 409 | 21689.03 | 26.73 |
Sibsagar | 2721.6 | 72.06 | 1759.44 | 4553.11 | 1795.6 | 89847.27 | 4.82 |
Sonitpur | 8942.64 | 104.12 | 4011.17 | 13057.93 | 4160.16 | 121687.45 | 9.68 |
Tinsukia | 4331.04 | 68.68 | 2070 | 6469.76 | 2146.38 | 121950.81 | 5.03 |
Udalguri | 4569.6 | 62.68 | 1528.69 | 6160.97 | 1560.71 | 43099.99 | 12.5 |
Total(Ham) | 206043.6 | 1378.45 | 56099.08 | 263521.18 | 58461.77 | 1823247.02 | 12.61 |
Total(Bcm) | 2.06 | 0.01 | 0.56 | 2.64 | 0.58 | 18.23 | 12.61 |
Source: Dynamic Ground Water Resources of Assam, 2024
District-wise Categorization of blocks for Assam (as in 2024):
Name of District | Total No. of Assessed Units | Safe | Semi-Critical | Critical | Over-Exploited | Saline | |||||
No | % | No. | % | No. | % | No. | % | No. | % | ||
Dhemaji | 5 | 5 | 100 | - | - | - | - | - | - | - | - |
Bongaigaon | 5 | 5 | 100 | - | - | - | - | - | - | - | - |
Jorhat | 8 | 8 | 100 | - | - | - | - | - | - | - | - |
Kamrup (M) | 4 | 3 | 75 | 1 | 25 | - | - | - | - | - | - |
Kokrajhar | 11 | 11 | 100 | - | - | - | - | - | - | - | - |
Darrang | 7 | 7 | 100 | - | - | - | - | - | - | - | - |
Hailakandi | 5 | 5 | 100 | - | - | - | - | - | - | - | - |
Kamrup | 14 | 14 | 100 | - | - | - | - | - | - | - | - |
Karbi Anglong | 11 | 11 | 100 | - | - | - | - | - | - | - | - |
Nalbari | 7 | 7 | 100 | - | - | - | - | - | - | - | - |
Sonitpur | 14 | 14 | 100 | - | - | - | - | - | - | - | - |
Tinsukia | 7 | 7 | 100 | - | - | - | - | - | - | - | - |
Sibsagar | 9 | 9 | 100 | - | - | - | - | - | - | - | - |
Lakhimpur | 9 | 9 | 100 | - | - | - | - | - | - | - | - |
Morigaon | 7 | 7 | 100 | - | - | - | - | - | - | - | - |
Dhubri | 15 | 15 | 100 | - | - | - | - | - | - | - | - |
Nagaon | 20 | 20 | 100 | - | - | - | - | - | - | - | - |
Dima Hasao | 5 | 5 | 100 | - | - | - | - | - | - | - | - |
Chirang | 5 | 5 | 100 | - | - | - | - | - | - | - | - |
Dibrugarh | 7 | 7 | 100 | - | - | - | - | - | - | - | - |
Goalpara | 8 | 8 | 100 | - | - | - | - | - | - | - | - |
Udalguri | 10 | 10 | 100 | - | - | - | - | - | - | - | - |
Baksa | 10 | 10 | 100 | - | - | - | - | - | - | - | - |
Cachar | 15 | 15 | 100 | - | - | - | - | - | - | - | - |
Golaghat | 8 | 8 | 100 | - | - | - | - | - | - | - | - |
Barpeta | 12 | 12 | 100 | - | - | - | - | - | - | - | - |
Karimganj | 7 | 7 | 100 | - | - | - | - | - | - | - | - |
Total | 245 | 244 | 99.59 | 1 | 0.41 | - | - | - | - | - | - |
Source: Dynamic Ground Water Resources of Assam, 2024
District Wise Annual Extractable Ground Water Resource of Assessment Units under Different Category for Assam (as in 2024):
Name of District | Total Annual Extractable Resource of Assessed Units (in mcm) | Safe | Semi-Critical | Critical | Over-Exploited | Saline | |||||
Total Annual Extractable Resource (in mcm) | % | Total Annual Extractable Resource (in mcm) | % | Total Annual Extractable Resource (in mcm) | % | Total Annual Extractable Resource (in mcm) | % | Total Annual Extractable Resource (in mcm) | % | ||
Dhemaji | 968.56 | 968.56 | 100 | - | - | - | - | - | - | - | - |
Bongaigaon | 459.42 | 459.42 | 100 | - | - | - | - | - | - | - | - |
Jorhat | 575.14 | 575.14 | 100 | - | - | - | - | - | - | - | - |
Kamrup (M) | 233.68 | 192.22 | 82.26 | 41.47 | 17.74 | - | - | - | - | - | - |
Kokrajhar | 1578.68 | 1578.68 | 100 | - | - | - | - | - | - | - | - |
Darrang | 522.46 | 522.46 | 100 | - | - | - | - | - | - | - | - |
Hailakandi | 208.76 | 208.76 | 100 | - | - | - | - | - | - | - | - |
Kamrup | 679.47 | 679.47 | 100 | - | - | - | - | - | - | - | - |
Karbi Anglong | 1072.28 | 1072.28 | 100 | - | - | - | - | - | - | - | - |
Nalbari | 296.14 | 296.14 | 100 | - | - | - | - | - | - | - | - |
Sonitpur | 1348.94 | 1348.94 | 100 | - | - | - | - | - | - | - | - |
Tinsukia | 1284.97 | 1284.97 | 100 | - | - | - | - | - | - | - | - |
Sibsagar | 944.37 | 944.37 | 100 | - | - | - | - | - | - | - | - |
Lakhimpur | 715.51 | 715.51 | 100 | - | - | - | - | - | - | - | - |
Morigaon | 376.13 | 376.13 | 100 | - | - | - | - | - | - | - | - |
Dhubri | 984.6 | 984.6 | 100 | - | - | - | - | - | - | - | - |
Nagaon | 1001.33 | 1001.33 | 100 | - | - | - | - | - | - | - | - |
Dima Hasao | 566.63 | 566.63 | 100 | - | - | - | - | - | - | - | - |
Chirang | 965.1 | 965.1 | 100 | - | - | - | - | - | - | - | - |
Dibrugarh | 1234.6 | 1234.6 | 100 | - | - | - | - | - | - | - | - |
Goalpara | 584.44 | 584.44 | 100 | - | - | - | - | - | - | - | - |
Udalguri | 492.93 | 492.93 | 100 | - | - | - | - | - | - | - | - |
Baksa | 1292.95 | 1292.95 | 100 | - | - | - | - | - | - | - | - |
Cachar | 440.92 | 440.92 | 100 | - | - | - | - | - | - | - | - |
Golaghat | 969.96 | 969.96 | 100 | - | - | - | - | - | - | - | - |
Barpeta | 772.12 | 772.12 | 100 | - | - | - | - | - | - | - | - |
Karimganj | 321.21 | 321.21 | 100 | - | - | - | - | - | - | - | - |
Total | 20891.31 | 20849.84 | 99.8 | 41.47 | 0.2 | - | - | - | - |
|
|
Grand Total | 20891.31 | 20849.84 | 99.8 | 41.47 | 0.2 | - | - | - | - |
|
|
Source: Dynamic Ground Water Resources of Assam, 2024
District Wise Recharge Worthy Area of Assessment unit under Different Category for Assam (as in 2024):
Name of District | Total Recharge Worthy Area of Assessed Units (in sq.km) | Safe | Semi-Critical | Critical | Over-Exploited | Saline | |||||
Recharge Worthy Area of Assessed Units (in sq.km) | % | Recharge Worthy Area of Assessed Units (in sq.km) | % | Recharge Worthy Area of Assessed Units (in sq.km) | % | Recharge Worthy Area of Assessed Units (in sq.km) | % | Recharge Worthy Area of Assessed Units (in sq.km) | % | ||
Dhemaji | 3151.56 | 3151.56 | 100 | - | - | - | - | - | - | - | - |
Bongaigaon | 997.3 | 997.3 | 100 | - | - | - | - | - | - | - | - |
Jorhat | 2794.08 | 2794.08 | 100 | - | - | - | - | - | - | - | - |
Kamrup (M) | 659.12 | 458.7 | 69.59 | 200.42 | 30.41 | - | - | - | - | - | - |
Kokrajhar | 3270.3 | 3270.3 | 100 | - | - | - | - | - | - | - | - |
Darrang | 1576.54 | 1576.54 | 100 | - | - | - | - | - | - | - | - |
Hailakandi | 1049.81 | 1049.81 | 100 | - | - | - | - | - | - | - | - |
Kamrup | 2630.24 | 2630.24 | 100 | - | - | - | - | - | - | - | - |
Karbi Anglong | 6560.9 | 6560.9 | 100 | - | - | - | - | - | - | - | - |
Nalbari | 1036.3 | 1036.3 | 100 | - | - | - | - | - | - | - | - |
Sonitpur | 5132.24 | 5132.24 | 100 | - | - | - | - | - | - | - | - |
Tinsukia | 3717.57 | 3717.57 | 100 | - | - | - | - | - | - | - | - |
Sibsagar | 2644.59 | 2644.59 | 100 | - | - | - | - | - | - | - | - |
Lakhimpur | 2249.3 | 2249.3 | 100 | - | - | - | - | - | - | - | - |
Morigaon | 1490.66 | 1490.66 | 100 | - | - | - | - | - | - | - | - |
Dhubri | 2143.92 | 2143.92 | 100 | - | - | - | - | - | - | - | - |
Nagaon | 3773.41 | 3773.41 | 100 | - | - | - | - | - | - | - | - |
Dima Hasao | 2343 | 2343 | 100 | - | - | - | - | - | - | - | - |
Chirang | 1917.94 | 1917.94 | 100 | - | - | - | - | - | - | - | - |
Dibrugarh | 3346.88 | 3346.88 | 100 | - | - | - | - | - | - | - | - |
Goalpara | 1719.83 | 1719.83 | 100 | - | - | - | - | - | - | - | - |
Udalguri | 2001.69 | 2001.69 | 100 | - | - | - | - | - | - | - | - |
Baksa | 2448.73 | 2448.73 | 100 | - | - | - | - | - | - | - | - |
Cachar | 2733.58 | 2733.58 | 100 | - | - | - | - | - | - | - | - |
Golaghat | 3481.4 | 3481.4 | 100 | - | - | - | - | - | - | - | - |
Barpeta | 2270.56 | 2270.56 | 100 | - | - | - | - | - | - | - | - |
Karimganj | 1676.48 | 1676.48 | 100 | - | - | - | - | - | - | - | - |
Total | 68817.93 | 68617.51 | 99.71 | 200.42 | 0.29 | - | - | - | - | - | - |
Source: Dynamic Ground Water Resources of Assam, 2024
Water Quality of Brahmaputra River at Different Locations in Assam during the period from Jan 2023 to Dec 2023:
(Based on Monthly Monitoring Data)
(Range: Min-Max)
Parameters Stations | No. of Observation in the Year | pH | Conductance (µmho/cm) | DO (mg./Itr.) | BOD (mg./Itr.) | Nitrate-N (mg./Itr.) | Faecal Coliform (MPN/100 ml) | Total Coliform (MPN/100 ml) |
Brahmaputra River at Maijan | 12 | 6.8-7.5 | 102-152 | 5.0 - 7.5 | 2.0 - 2.7 | 0.7 - 1.6 | 360 -1100 | 730 -2100 |
Brahmaputra River at Nimatighat | 12 | 7.0-7.6 | 124-186 | 6.3 - 8.4 | 2.0 - 2.5 | 0.6 - 1.4 | 300 -730 | 600 -2000 |
Brahmaputra River at Dhenukhanapahar | 12 | 6.8-7.6 | 120-146 | 7.0 - 7.7 | 2.0 - 2.5 | 0.7 - 1.7 | 360 -1100 | 910 -2000 |
Brahmaputra River at Chandrapur | 12 | 6.8-8.0 | 128-178 | 6.9 - 9.7 | 2.0 - 2.6 | 0.6 - 1.7 | 610 -2800 | 1500 -3600 |
Brahmaputra River at Kacharighat | 12 | 7.2-7.9 | 132-214 | 5.4 - 8.9 | 2.1 - 2.6 | 0.6 - 1.8 | 360 -1100 | 910 -2700 |
Brahmaputra River at Pandu | 12 | 6.7-7.8 | 126 -166 | 6.1 - 8.7 | 2.0 - 2.7 | 0.6 - 1.5 | 730 -1100 | 1500 -2100 |
Brahmaputra River at Sualkuchi | 12 | 7.1-7.9 | 115 - 130 | 5.0 - 8.2 | 2.1 - 2.8 | 0.7 - 1.7 | 360 -1500 | 1100 -2100 |
Brahmaputra River at Jogighopa | 12 | 7.0-7.8 | 146 - 170 | 5.4 - 6.5 | 2.0 - 2.6 | 0.7 - 1.9 | 360 -1100 | 1100 -2000 |
Brahmaputra River at Dhubri | 12 | 6.9-7.6 | 130 -168 | 5.2 - 5.7 | 2.0 - 2.5 | 0.7 - 1.7 | 360 -1100 | 910 -2100 |
Brahmaputra River at Bogibeel, near Bridge | 12 | 7.0-7.4 | 120 - 146 | 5.0 - 7.3 | 2.0 - 2.5 | 0.6 - 1.4 | 300 -910 | 730 -2000 |
Brahmaputra River at Biswanath Ghat | 12 | 6.8-7.8 | 108 - 176 | 7.0 - 7.3 | 2.0 - 2.7 | 0.7 - 1.5 | 610 -1100 | 1400 -2100 |
N.B.: pH(A scale for measuring acidity/alkalinity) AL: 6.5-8.5; DO(Dissolved Oxygen) AL:4mg/l; BOD(Biochemical Oxygen Demand) AL: 3mg/l; Nitrate-N(Nitrate nitrogen) AL:50mg/l; Faecal Coliform(MPN/100ml) AL:2500;
Total Coliform (MPN/100ml) AL:5000; MPN= Most Probable Number; µ: An abbreviation of micrometer(s) or micron(s); mho/cm: is an older unit of electrical conductivity.
Source: Statistical Handbook, Assam - 2024
Water Quality of some Tributaries of Brahmaputra River and Barak River at Different Locations in Assam during the period from Jan 2023 to Dec 2023:
(Based on Monthly Monitoring Data)
(Range: Min-Max)
Stations/Parameters | No. of Observation in the year | pH | Conductance (µmho/cm) | DO (mg./Itr.) | BOD (mg./Itr.) | Nitrate-N (mg./Itr.) | Faecal Coliform (MPN/100 ml) | Total Coliform (MPN/100 ml) |
1. Jhanji River at Jorhat | 12 | 6.6-7.4 | 110 - 132 | 5.5 - 8.1 | 2.1 - 2.6 | 0.6 - 1.4 | 300 - 360 | 720 - 2100 |
2. Dhansiri river at Golaghat | 12 | 7.0-7.9 | 136 - 172 | 5.0 - 10.5 | 2.0 - 2.6 | 0.7 - 2.0 | 300 - 940 | 720 - 2000 |
3 . Subansiri river at Gerukamukh | 12 | 7.0-7.6 | 108 - 138 | 6.2 - 8.3 | 2.0 - 2.4 | 0.4 - 1.6 | 360 - 940 | 910 - 2100 |
4. Disang River at Gudamghat | 12 | 6.9-7.9 | 98 - 126 | 5.7 - 6.9 | 1.8 - 2.3 | 0.6 - 1.2 | 360 - 910 | 730 - 2300 |
5. Buridihing at Margherita | 12 | 7.0-7.9 | 106 - 148 | 5.2 - 8.2 | 2.0 - 2.5 | 0.6 - 1.4 | 360 - 730 | 910 - 1500 |
6. Bhogdoi River at Jorhat | 12 | 6.6-7.3 | 140 - 258 | 5.2 - 8.5 | 1.9 - 2.5 | 0.6 - 1.4 | 360 - 910 | 910 - 2000 |
7. Bharalu river at Guwahati | 12 | 6.9-7.6 | 520 - 610 | 0.5 - 1.0 | 30.8 - 37.9 | 2.0 - 3.8 | 2300 - 2900 | 4200 - 5300 |
8. Digboi River at Lakhipathar Reserve Forests | 12 | 6.8-8.5 | 236 - 332 | 5.1 - 10.8 | 5.0 - 5.8 | 0.6 - 2.9 | 360 - 930 | 1100 - 2000 |
9. Mora Bharali at Tezpur | 12 | 6.9-7.4 | 148 - 242 | 3.8 - 5.4 | 3.0 - 3.3 | 0.9 - 2.0 | 360 - 940 | 1100 - 2000 |
10. Disang River at Dillighat | 12 | 7.0-7.5 | 120 - 188 | 5.3 - 10.5 | 1.8 - 2.4 | 0.4 - 1.6 | 360 - 1100 | 910 - 2100 |
11. Kolong River at Morigaon | 12 | 6.9-7.8 | 140 - 176 | 5.0 - 8.4 | 2.0 - 2.5 | 0.7 - 1.5 | 360 - 930 | 910 - 2000 |
12. Manas river at NH-31 crossing Barpeta | 12 | 6.9-7.7 | 132 -168 | 5.1 - 5.7 | 1.9 - 2.7 | 0.6 - 2.2 | 600 - 730 | 1100 - 1500 |
13. Kharsang River before confl. with Buridhing near Kharsang | 12 | 6.9-7.6 | 128 - 166 | 5.1 - 8.1 | 2.0 - 2.6 | 0.4 - 1.0 | 300 - 730 | 720 - 1600 |
14. Burdihing near Duliajan at D/S, Tinsukia | 12 | 6.7-7.7 | 128 - 188 | 5.1 - 9.0 | 2.1 - 2.7 | 0.6 - 1.9 | 720 - 1100 | 1500 - 2100 |
15. Jia Bharali river at Biswanath Charali | 12 | 7.0-7.5 | 126 - 142 | 6.8 - 7.0 | 2.0 - 2.5 | 0.7 - 1.8 | 360 - 730 | 910 - 2000 |
16. Pagladia river near Nalbari Town | 12 | 7.0-8.0 | 142 - 230 | 5.8 - 8.1 | 2.0 - 2.8 | 0.6 - 1.8 | 610 - 1500 | 1100 - 2100 |
17. Barak river at Panchgrann | 12 | 6.8-7.4 | 102 - 134 | 6.0 - 6.3 | 2.1- 2.7 | 0.6 - 1.2 | 620 - 940 | 1400 - 2000 |
18. U/s. of Kathakal at Matijuri Dist. Hailakandi | 12 | 6.8-7.2 | 104 - 134 | 5.3 - 6.2 | 2.0 - 2.4 | 0.7 - 1.1 | 610 - 1500 | 1100 - 2100 |
19. Kundil River at Sapakhowa | 12 | 7.0-7.7 | 126 - 172 | 5.0 - 8.4 | 2.0 - 2.6 | 0.6 - 1.6 | 300 - 910 | 300 - 910 |
20. Buridihing river at Duliajan | 12 | 6.9-7.7 | 126 - 178 | 5.0 - 8.0 | 2.0 - 2.6 | 0..7 - 1.4 | 610 - 1100 | 1600 - 2800 |
21. Dikhow river at Dikhow Bridge, Sivasagar | 12 | 6.8-7.5 | 122 - 172 | 6.0 - 8.0 | 1.8 - 2.5 | 0.8 - 1.6 | 360 - 900 | 720 - 2100 |
22. Gelabeel at Dergaon | 12 | 6.8-7.4 | 106 - 176 | 3.7 - 9.2 | 2.0 - 2.4 | 0.7 - 2.0 | 360 - 1100 | 1100 - 2100 |
23. Kohora river at NH Crossing | 12 | 7.2-7.9 | 112 - 136 | 5.5 - 6.3 | 2.0 - 2.4 | 0.5 - 2.0 | 620 - 930 | 1300 - 2000 |
24. Boginadi river near Bridge at NH-52 | 12 | 7.2-7.9 | 112 - 136 | 5.5 - 6.3 | 2.0 - 2.4 | 0.5 - 2.0 | 620 - 930 | 1300 - 2000 |
25. Ranga Nadi D/S of Hyde! Project | 12 | 6.9-8.0 | 122 - 168 | 5.4 - 6.2 | 2.0 - 2.6 | 0.6 - 1.4 | 300 - 730 | 730 - 1600 |
26. Panchnai river at NH-52,Orang | 12 | 6.8- 7.2 | 102 -144 | 5.0 - 6.2 | 2.2 - 2.7 | 0.8 - 1.7 | 620 - 940 | 1300 - 2100 |
27. Kapili river at Dharamtul Bridge | 12 | 6.8- 7.5 | 120 - 176 | 5.0 - 9.2 | 2.1 - 2.5 | 0.7 - 1.7 | 360 - 930 | 910 - 1600 |
28. Kolong at D/S of ADP Bridge | 12 | 6.8- 7.5 | 118 - 180 | 5.0 - 7.4 | 2.0 - 2.5 | 0.8 - 1.9 | 620 - 1100 | 1500 - 2200 |
29. Beki at NH-37 cross at Barpeta | 12 | 6.8 - 7.6 | 138 - 168 | 5.3- 5.6 | 2.0- 2.7 | 0.7- 2.1 | 360 - 730 | 1100 - 1500 |
30. Sankosh riverat Dhubri | 12 | 6.9 - 7.7 | 126 - 152 | 5.2- 5.4 | 2.0- 2.5 | 0.6- 1.8 | 300 - 910 | 620 - 2000 |
31. Borak at D/S of Silchar | 12 | 7.0 - 7.3 | 90 - 116 | 5.0- 5.6 | 2.0- 2.8 | 0.6- 1.2 | 300 - 1100 | 730 - 2800 |
32. Sonai river at Sonai | 12 | 7.2 - 7.4 | 88 - 120 | 5.0- 5.6 | 2.2- 2.5 | 0.7- 1.1 | 600 - 1100 | 1100 - 2000 |
33. Kushiara at Sribhumi | 12 | 7.0 - 7.3 | 84 - 108 | 5.2- 6.8 | 2.0- 2.5 | 0.6- 1.3 | 360 - 730 | 910 - 1600 |
34. Dikrong River near Bridge at NH-52, Bandardowa | 12 | 7.0 - 7.9 | 120 -166 | 5.5- 6.3 | 1.8- 2.6 | 0.5- 2.1 | 300 - 730 | 910 - 1600 |
35. Baroi River near Bridge at NH-52,Biswanath | 12 | 7.0 - 7.9 | 102 - 144 | 5.3- 7.0 | 1.9- 2.6 | 0.4- 4.0 | 300 - 1100 | 620 - 2000 |
36. Gabharu river near Bridge at NH-52 near Tumiuki | 12 | 6.8 - 7.8 | 106 - 132 | 5.0- 6.3 | 2.1- 2.5 | 0.7- 1.3 | 360 - 730 | 1100 - 1500 |
37. Dhansiri River near Bridge at NH-15, Dhansiri | 12 | 6.9 - 7.6 | 112 - 136 | 5.6- 6.4 | 1.9- 2.4 | 0.7- 1.8 | 300 - 730 | 730 - 1500 |
38. Bega River, MG Road, Mangoldoi | 12 | 7.0 - 7.6 | 90 - 122 | 5.0- 6.2 | 3.0- 3.4 | 0.7- 1.7 | 600 -1100 | 1200 - 2800 |
39. Nuwa Noi River near Bridge, Boinaoja Para | 12 | 6.8 - 7.4 | 106 - 128 | 5.4- 6.3 | 2.0- 2.6 | 0.8- 1.5 | 360 - 720 | 1100 - 1400 |
40. Kakodonga River at NH-37 Crossing | 12 | 6.5 - 7.9 | 105 - 138 | 4.8- 5.8 | 2.0- 2.4 | 0.6- 1.3 | 360 - 730 | 730 - 1500 |
41. Bhogdoi River at Intake Point of Urban Water Supply, Jorhat | 12 | 6.6 - 7.7 | 138 - 228 | 6.0- 8.0 | 1.6- 2.8 | 0.6- 1.4 | 300 - 730 | 700 - 1100 |
42. Towkak River at Sonari | 12 | 6.9 - 7.8 | 101- 128 | 5.9- 7.9 | 1.4- 2.6 | 0.6- 1.2 | 360 - 730 | 730 - 2100 |
43. Suffry River at Maibella | 12 | 6.5 - 7.1 | 144 - 212 | 5.5- 7.9 | '1.8- 2.3 | 0.6- 1.4 | 300 - 360 | 600 - 910 |
44. Dikhow River at Nagini mora | 12 | 6.7 - 7.5 | 126 - 166 | 5.7- 8.0 | 1.7- 2.6 | 0.6- 1.0 | 360 - 910 | 1100 - 2100 |
45. Dorika River near MSW Dumping site, Sivasagar | 12 | 6.6 - 7.6 | 108 - 208 | 4.2- 5.8 | 1.9- 2.8 | 0.6- 1.3 | 720 - 1100 | 1500 - 2800 |
46. Dikhow River at Dikhowmukh Confluence with Brahmaputra | 12 | 6.7 - 7.6 | 138 - 209 | 5.8- 7.9 | 1.8- 2.5 | 0.8- 1.1 | 300 - 730 | 730 - 2800 |
47. Sessa River near Sessa Tiniali, NH Bridge, Dibrugarh | 12 | 7.0 - 7.6 | 110 - 182 | 5.0- 7.5 | 2.0- 2.5 | 0.9- 1.7 | 300 - 730 | 910 - 1900 |
48. Tingrai River near Tinsukia MSW Dumping site | 12 | 6.8 - 7.8 | 114 - 184 | 5.3- 7.8 | 2.0- 2.8 | 0.6- 2.0 | 620 - 1100 | 1300 - 2000 |
49. Gai Nadi River at Somarajan, Dhemaji | 12 | 6.9 - 7.8 | 140 - 174 | 5.2- 7.8 | 2.0- 2.6 | 0.6- 1.0 | 360 - 720 | 910 - 1400 |
50. Jiadhal River/Kumatia River near Jiadhal Bridge | 12 | 6.8 - 7.8 | 120 - 192 | 5.0- 8.3 | 2.1- 2.5 | 0.6- 1.7 | 360 - 730 | 1100 - 1500 |
51. Kaliani River near Kanaighat Bridge | 12 | 7.0 - 7.7 | 120 - 148 | 5.8 - 9.8 | 2.0 - 2.6 | 0.5 - 2.0 | 360 - 730 | 910 - 1500 |
52. Dhansiri River at Jahajghat | 12 | 6.8 - 7.4 | 122 - 154 | 5.6 - 9.5 | 2.0 - 2.5 | 0.6 - 1.7 | 360 - 1400 | 910 - 2100 |
53. Kuji River near Water Intake Point at New Bongaigaon | 12 | 6.8 - 7.3 | 140 - 182 | 5.2 - 6.1 | 2.0 - 2.6 | 0.6 - 2.0 | 360 - 1100 | 1100 - 2100 |
54. Manas River (at Santoshpur) near Lengtisinga | 11 | 6.8 - 7.6 | 132 - 182 | 5.2 - 6.1 | 2.0 - 2.7 | 0.6 - 2.0 | 600 - 1100 | 1100 - 2100 |
55. Killing River at Morigaon District | 12 | 6.9 - 7.4 | 84 - 108 | 5.2 - 10.9 | 1.8 - 2.5 | 0.6 - 1.9 | 300 - 1100 | 910 - 2100 |
56. Madhura River at Madhuraghat, Cachar District | 12 | 7.0 - 7.3 | 98 - 132 | 5.0 - 5.5 | 2.0 - 2.9 | 0.6 - 1.2 | 360 - 940 | 900 - 2000 |
57. Digaru River at NH Crossing | 12 | 7.0 - 7.6 | 101 - 136 | 4.2 - 9.8 | 2.0 - 2.5 | 0.6 - 1.3 | 620 - 1100 | 1200 - 2000 |
58. Kulsi River at Chaygaon near NH 37 Crossing | 12 | 7.1- 7.8 | 96 - 122 | 5.9 - 9.1 | 2.3 - 2.7 | 0.7 - 2.0 | 610 - 1100 | 1100 - 2100 |
59. Puthimari River near Puthinari Chawk at NH Crossing | 12 | 7.0 - 8.0 | 140 - 178 | 5.7 - 8.3 | 2.1- 2.7 | 0.6 - 1.2 | 620 - 930 | 1400 - 2300 |
60. Disang River at NH Crossing | 12 | 7.0 - 7.7 | 110 - 138 | 5.5 - 7.3 | 1.6 - 2.6 | 0.7 - 1.1 | 360 - 720 | 730 - 1500 |
61. Tocklai River near Bridge at Jorhat | 12 | 6.6 - 7.8 | 188 - 272 | 5.0 - 6.8 | 2.0 - 2.8 | 0.8 - 1.3 | 720 - 1100 | 1400 - 2800 |
62. Tunia River at D/S of BRPL | 12 | 6.8 - 7.7 | 138 - 164 | 5.1 - 5.4 | 1.9 - 2.6 | 0.7 - 2.0 | 620 - 940 | 1200 - 1900 |
63. Larsing River near IOCL Depo at Moinarbond | 12 | 7.0 - 7.3 | 92 - 133 | 5.0 - 5.4 | 2.0 - 2.3 | 0.7 - 1.0 | 360 - 730 | 910 - 1500 |
64. River Dhateshwari D/S of Hailakandi | 12 | 6.6 - 7.2 | 128 - 162 | 4.2 - 5.7 | 2.0 - 2.8 | 0.9 - 1.3 | 620 - 910 | 1300 - 2000 |
65. River Demow at Demow Town | 12 | 6.8 - 7.5 | 108 - 132 | 5.5 - 7.8 | 1.9 - 2.6 | 0.8 - 1.2 | 360 - 910 | 1100 - 2300 |
66. River Borsila at Borsila, Deopani, Namti | 12 | 6.6 - 7.4 | 83 - 102 | 5.0 - 7.9 | 1.8 - 2.4 | 0.6 - 1.0 | 360 - 730 | 720 - 2100 |
67. River Barnadi near Bridge, NH-52, Dumunichowki, Kamrup | 12 | 7.0 - 7.8 | 120 - 148 | 5.5 - 9.3 | 2.0 - 2.4 | 0.5 - 1.3 | 360 - 910 | 910 - 2000 |
68. River Baralia (near Chatpuja Ghat) Rangia, Kamrup | 12 | 7.2 - 7.9 | 136 - 176 | 5.9 - 8.5 | 2.2 - 2.7 | 0.6 - 1.4 | 620 - 1100 | 1100 - 2100 |
69. River Burulia (near Bridge along NH-31) Nalbari | 12 | 7.0 - 8.0 | 116 - 140 | 5.1 - 9.5 | 2.1 - 2.6 | 0.8 - 1.8 | 600 - 910 | 1200 - 2000 |
70. River Tihu (near Bridge along NH-31), Tihu, Nalbari | 12 | 6.8 - 7.7 | 105 -146 | 5.0 - 8.7 | 2.0 - 2.5 | 0.6 - 1.0 | 610 - 930 | 1400 - 2000 |
71. River Singra (near Bridge along NH-37), Boko, Kamrup | 12 | 6.9 - 7.3 | 102 - 118 | 5.5 - 10.4 | 2.0 - 2.5 | 0.6 - 1.8 | 360 - 940 | 910 - 2100 |
72. River Aie near Rakhaldubi, Bongaigaon | 12 | 6.8 - 7.4 | 130 - 178 | 5.1 - 5.5 | 2.0 - 2.6 | 0.6 - 1.3 | 360 - 730 | 1100 - 1500 |
73. River Tunia U/S BRPL, Dhaligaon, Chirang | 12 | 6.9 - 7.5 | 130 - 168 | 4.4 - 5.4 | 2.0 - 2.7 | 0.6 - 2.1 | 360 - 720 | 910 - 1600 |
74. River Jamuna at Doboka near Brdg, Hojai | 12 | 6.9 - 7.6 | 128 - 164 | 5.0 - 6.9 | 2.1 - 2.4 | 0.6 - 1.6 | 360 - 940 | 1100 - 2000 |
75. River Bondajan, Sluice Gate, Birkuchi, Narengi Tiniali, Kharghuli No.2 Kamrup(M) | 12 | 6.9 - 7.4 | 116 - 178 | 4.5 - 5.4 | 2.0 - 2.6 | 0.6 - 2.0 | 1500 - 2100 | 3400 - 3600 |
76. River Basistha, Basistha Charali, Guwahati | 12 | 6.9 - 7.8 | 130 - 168 | 4.8 - 7.5 | 2.0 - 2.6 | 0.4 - 1.4 | 1500 - 2100 | 2800 - 3600 |
77. River Pamohi Garchuk, Pamohi Road, Guwahati | 12 | 7.0 - 7.5 | 190 - 278 | 4.3 - 5.4 | 2.0 - 2.7 | 0.6 - 2.2 | 1400 - 2000 | 2400 - 3500 |
78. River Kalanadi near Bamunjuli Bridge Crossing at Mangaldoi Bhutiach | 1 | 7.2 | 194 | 8.6 | 2.1 | 0.9 | 910 | 2000 |
79. River Gadadhar at Golakganj Bridge | 9 | 6.8 - 7.4 | 120 - 140 | 5.3 - 5.6 | 2.0 - 2.3 | 0.6 - 1.0 | 360 - 1100 | 1100 - 2000 |
80. River Namdang near bridge at hati patty geleky | 9 | 6.5 - 7.0 | 132 - 208 | 5.0 - 6.6 | 1.7 - 2.5 | 0.6 - 1.1 | 300 - 360 | 720 - 910 |
81. River Namdang At Kalugaon | 9 | 6.5 - 7.2 | 118 -188 | 5.1 - 7.2 | 2.1 - 2.6 | 0.7 - 1.0 | 300 - 720 | 730 - 1400 |
82. River Kapili at Kheroni Ghat Near Bridge, West Karbi Anglong, Kheroni | 9 | 6.8 - 7.6 | 118 - 142 | 5.3 - 8.0 | 2.2 - 2.5 | 0.6 - 0.9 | 720 - 930 | 1400 - 2000 |
83. River Daloo at Daloo, Cachar | 9 | 7.2 - 7.6 | 128 - 142 | 5.0 - 8.0 | 2.1 - 2.7 | 0.6 - 1.0 | 300 - 930 | 620 - 2000 |
84. River Ego (Simen) Near Simenchapori Bridge, Dhemaji | 9 | 7.0 - 8.0 | 142 - 198 | 5.8 - 8.6 | 2.0 - 2.7 | 0.6 - 1.0 | 300 - 930 | 620 - 2000 |
85. River Disang at Nangalmara Ghat | 9 | 7.0 - 8.0 | 126 - 198 | 5.5 - 8.6 | 1.8 - 2.7 | 0.7 - 1.1 | 360 - 930 | 730 - 2800 |
86. River Dikhow at Simaluguri | 8 | 7.0 - 8.0 | 120 - 198 | 5.5 - 8.6 | 1.6 - 2.7 | 0.6 - 1.1 | 360 - 1100 | 730 - 2800 |
87. River Tihuat D/S of Industrial Area Near Helochapara Shiva Temple | 9 | 7.0 - 8.0 | 116 - 198 | 5.1 - 8.6 | 2.0 - 2.7 | 0.7 - 1.1 | 360 - 1500 | 910 - 3500 |
88. River Kulsi At Kukurmara | 9 | 6.8 - 8.0 | 90 - 198 | 5.3 - 9.2 | 2.0 - 2.7 | 0.6 - 1.1 | 360 - 1500 | 1400 - 3500 |
89. River Tunia at New Bongaigaon Railway Station | 9 | 7.0 - 8.0 | 132 - 198 | 5.0 - 9.2 | 2.0 - 2.7 | 0.6 - 1.2 | 300 - 1500 | 1100 - 3500 |
90. River Mornoi at Mornoi Ghat | 9 | 7.0 - 8.0 | 90 - 198 | 5.2 - 9.2 | 2.0 - 2.7 | 0.6 - 1.2 | 300 - 1500 | 610 - 3500 |
91. River Doomdooma at D/sof Doomdooma Town at Hansara | 9 | 6.8 - 8.1 | 122 - 198 | 5.1 - 9.2 | 2.0 - 2.7 | 0.6 - 1.2 | 300 - 1500 | 720 - 3500 |
92. River Bega at D/S of Mangoldoi Town | 9 | 7.02 - 8.1 | 92 - 198 | 5.0 - 9.2 | 2.4 - 3.4 | 0.6 - 1.2 | 730 - 1900 | 1500 - 3500 |
93. River Ghogra Near ITI, Srikona Main Block | 10 | 7.0 - 7.2 | 103 - 134 | 5.5 - 6.3 | 2.0 - 2.5 | 0.6 - 0.9 | 360 - 2000 | 910 - 3500 |
94. River Tunia at NH near BGR | 9 | 7.0 - 7.5 | 126 - 150 | 4.3 - 5.6 | 2.1 - 2.7 | 0.7 - 1.0 | 730 - 1500 | 1500 - 13500 |
N.B.: pH(A scale for measuring acidity/alkalinity) AL: 6.5-8.5; DO(Dissolved Oxygen) AL:4mg/I; BOD(Biochemical Oxygen Demand) AL:3mg/I;
Nitrate-N(Nitrate Nitrogen) AL:50mg/l; Total Coliform (MPN/100ml) AL:5000; Faecal Coliform (MPN/100ml) AL:2500;
Source: Statistical Handbook, Assam - 2024
Water Quality of some of the Beels/Ponds/Tank at Different Locations in Assam during the period from Jan 2023 to Dec 2023:
(Based on Monthly Monitoring Data)
(Range: Min-Max)
Stations/Parameters | No. of Observation in the year | pH | Conductance (µmho/cm) | DO (mg./Itr.) | BOD (mg./Itr.) | Nitrate-N (mg./Itr.) | Faecal Coliform (MPN/100 ml) | Total Coliform (MPN/100 ml) |
1. Elenga Beel at Jagiroad | 12 | 7.0 - 7.5 | 236 - 280 | 4.3- 5.5 | 2.3- 2.8 | 1.0- 2.2 | 300- 730 | 720- 2000 |
2. Deepar Beel at hati | 12 | 6.8 - 8.5 | 236 - 332 | 5.1- 10.8 | 5.0- 5.8 | 0.6- 2.9 | 300- 930 | 1100- 2000 |
3. Joysagar Tank at Sibasagar | 12 | 6.9 - 7.6 | 102 - 122 | 5.1- 7.6 | 1.8- 2.6 | 0.6- 1.0 | 300- 360 | 600- 910 |
4. Mer Beel at Madhabpur | 12 | 6.8 - 7.3 | 120 - 154 | 5.0- 7.1 | 2.0- 2.4 | 0.6- 1.8 | 300- 620 | 720- 1500 |
5. Daloni Beel near Jogighopa | 12 | 7.0 - 7.5 | 144 -166 | 5.1- 5.7 | 2.0- 2.7 | 0.7- 2.1 | 300- 360 | 910- 1200 |
6. Bor Beel at Jakai | 12 | 6.9 - 7.3 | 118 - 142 | 4.3- 6.8 | 2.0- 2.8 | 0.5- 1.9 | 300- 720 | 600- 1200 |
7. Borpukhuri at Nazira | 12 | 6.8 - 7.5 | 92 - 114 | 5.2- 7.9 | 1.9- 2.8 | 0.7- 1.2 | 300- 360 | 700- 910 |
8. Gaurisagar Tank at Gaurisagar | 12 | 6.7 - 7.5 | 97 - 128 | 5.0- 7.5 | 1.6- 2.7 | 0.7- 1.5 | 360- 910 | 730- 1500 |
9. Rajmaw Pukhuri at Jorhat | 12 | 6.9 - 7.9 | 90 - 130 | 5.3- 7.9 | 2.0- 2.7 | 0.6- 1.4 | 300- 730 | 720- 1100 |
10. Padum Pukhuri at Tezpur | 12 | 6.9 - 7.6 | 186 - 240 | 6.8- 7.2 | 2.2- 2.7 | 0.6- 1.6 | 300- 730 | 600- 1500 |
11. Gohpur Tank at Gohpur | 12 | 6.8 - 7.6 | 138 - 192 | 6.8- 7.3 | 2.0- 2.7 | 0.6- 1.7 | 300- 620 | 910- 1200 |
12. Jaipal Pukhuri at Sipajhar | 12 | 6.8 - 7.5 | 136 - 178 | 7.0- 7.3 | 2.0- 2.5 | 0.9- 1.7 | 300- 920 | 730- 1600 |
13. Botodrowa Satra Pond at Nagaon | 12 | 6.7 - 7.8 | 81- 112 | 5.0- 7.6 | 1.8- 2.7 | 0.8- 1.9 | 300- 360 | 730- 1200 |
14. Saran Beel | 12 | 6.8 - 8.0 | 84 - 128 | 5.3- 9.3 | 1.8- 2.5 | 0.4- 1.6 | 300- 360 | 620- 1100 |
15. Dighali Pukhuri at Guwahati | 12 | 7.9 - 8.2 | 168 - 192 | 5.1- 10.0 | 2.3- 2.8 | 0.6- 1.6 | 360- 730 | 1400- 1600 |
16. Subhagya Kunda Pond at Kamakhya | 12 | 6.8 - 7.6 | 240 - 278 | 5.0- 8.5 | 2.2- 2.8 | 0.6- 1.8 | 300-910 | 1100- 2000 |
17. Deepar Beel near IASST | 12 | 6.8 - 9.0 | 246 - 336 | 4.1- 10.5 | 4.9- 8.0 | 1.3- 2.7 | 360- 730 | 910- 1600 |
18. Bishnu Puskar Pukhuri at Abhayapuri | 12 | 6.8 - 7.8 | 174 - 262 | 6.1- 10.9 | 2.0- 2.6 | 0.5- 1.8 | 300- 730 | 720- 2000 |
19. Chand Dubi Beel at Chanddubi | 12 | 6.8 - 7.5 | 112 - 138 | 5.3- 8.8 | 2.1- 2.7 | 0.6- 1.9 | 300- 920 | 720- 1600 |
20. Ganga Pukhuri at Nalbari | 12 | 7.0 - 7.9 | 102 - 130 | 5.4- 10.1 | 2.0- 2.6 | 0.5- 1.7 | 300- 360 | 600- 1400 |
21. Rajadinia Pukhuri at Abhayapuri | 12 | 6.9 - 7.5 | 132 - 156 | 5.1- 5.4 | 2.0- 2.5 | 0.7- 2.0 | 300- 620 | 910- 1300 |
22. Mahamaya Mandir Pukhuri | 12 | 6.9 - 7.6 | 94 - 126 | 5.0- 5.4 | 1.8- 2.5 | 0.7- 1.7 | 300- 620 | 720- 1600 |
23. Rajapukhuri at Gauripur | 12 | 6.9 - 7.4 | 110 - 150 | 5.0- 5.5 | 2.0- 2.6 | 0.7- 1.8 | 300- 620 | 730- 1400 |
24. Baskandi Pond at Baskandi | 12 | 6.8 - 7.3 | 90 - 126 | 4.1- 5.6 | 2.0- 2.9 | 0.7- 1.1 | 300- 620 | 910- 1300 |
25. Sivasagar Tank | 12 | 6.8 - 7.6 | 70 - 120 | 5.2- 7.9 | 2.0- 2.8 | 0.6- 1.3 | 300- 360 | 730- 1100 |
26. Hordoi Pukhuri at Charaidew | 12 | 6.7 - 7.5 | 88 - 112 | 5.7- 8.1 | 2.0- 2.8 | 0.6- 1.1 | 300 - 730 | 600 - 1500 |
27. Borpukhuri at Sonari | 12 | 6.8 - 7.8 | 98 - 128 | 5.1- 8.4 | 2.1- 2.8 | 0.5- 1.1 | 300 - 360 | 700 - 1100 |
28. Tenga Pukhuri at Tengapukhuri | 12 | 7.0 - 8.0 | 98 - 112 | 5.2- 8.1 | 1.9- 2.5 | 0.7- 1.0 | 300 - 730 | 730 - 1500 |
29. Maguri Beel, Guijan, Tinsukia | 12 | 7.0 - 7.1 | 110 - 168 | 5.1- 9.7 | 1.9- 2.7 | 0.5- 1.8 | 300 - 620 | 730 - 1500 |
30. Holudunga Beel near Gai Nadi River at Somarajan | 12 | 7.0 - 7.1 | 96 - 148 | 4.5- 7.8 | 2.0- 2.6 | 0.6- 2.0 | 300 - 620 | 600 - 1300 |
31. Bordoibam Beelmukh Bird Sanctuary, Dhemaji | 12 | 7.0 - 8.0 | 132 - 210 | 5.0- 8.4 | 2.0- 2.6 | 0.6- 1.3 | 300 - 720 | 1100 - 1500 |
32. Samaguri Beel in Nagaon District | 12 | 7.0 - 7.2 | 90 - 120 | 4.9- 5.9 | 2.0- 2.5 | 0.6- 1.7 | 300 - 620 | 910 - 1400 |
33. Malini Beel near Industrial Area at Ramnagar | 12 | 7.0 - 7.1 | 132 - 172 | 4.0- 5.5 | 2.1- 2.7 | 0.8- 1.7 | 300 - 600 | 910 - 1400 |
34. Son Beel at Sribhumi | 12 | 7.0 - 7.1 | 112 - 136 | 4.5- 6.9 | 2.0- 2.8 | 0.7- 1.2 | 300 - 620 | 910 - 1200 |
35. Ramkrishna Pond at Hailakandi | 12 | 7.0 - 7.1 | 120 - 156 | 5.1- 6.2 | 2.3- 2.9 | 0.7- 1.1 | 300 - 620 | 910 - 1400 |
36. Parashali Beel at Demoria | 12 | 7.0 - 8.0 | 102 - 138 | 5.0- 7.2 | 2.0- 2.7 | 0.7- 2.6 | 300 - 610 | 600 - 1400 |
37. Jorpukhuri at Uzanbazar near Ugratara Temple | 12 | 7.0 - 8.0 | 322 - 364 | 5.0- 7.7 | 2.1- 2.8 | 0.7- 5.0 | 300 - 940 | 1400 - 2000 |
38. Kamalpur Beel at Kamalpur | 12 | 7.0 - 8.0 | 1007 - 1062 | 1.7- 6.2 | 21.0- 26.2 | 2.0- 3.6 | 720 - 2100 | 1500 - 3600 |
39. Silsako Beel, Chachal, Guwahati | 12 | 7.0 - 8.0 | 370 - 446 | 0.6- 4.6 | 10.6- 19.2 | 0.7- 2.0 | 1500 - 2800 | 2700 - 3600 |
40. Soru Sola Beel at Paltanbazar, Guwahati | 12 | 7.0 - 8.0 | 370 - 440 | 0.4- 1.1 | 14.6- 25.8 | 0.7- 5.6 | 2800 - 3600 | 4200 - 5300 |
41. Borsola Beel at Sarabbhatti, Guwahati | 12 | 7.0 - 7.1 | 370 - 460 | 0.4- 1.1 | 15.2- 26.0 | 0.6- 5.8 | 2700 - 2900 | 4200 - 4400 |
42. Diplai Beel at Silgara, Kokrajhar | 12 | 7.0 - 8.0 | 118 - 136 | 5.2- 5.6 | 1.9- 2.5 | 0.8- 2.0 | 300 - 360 | 720 - 1400 |
43. Netai Pukhuri at Netaipukhuri | 12 | 7.0 - 7.1 | 90 - 120 | 5.6- 7.6 | 2.1- 2.6 | 0.6- 1.1 | 300 - 360 | 720 - 730 |
44. Thowradole Pukhuri, Thowradole G.P. Demow Block | 12 | 7.0 - 7.1 | 80 - 108 | 5.0- 7.8 | 2.0- 2.6 | 0.7- 1.2 | 300 - 360 | 620 - 910 |
45. Kamalabari Lake inside Kamalabari Childrens' Park, Geleky | 12 | 7.0 - 7.1 | 78 - 106 | 5.1- 7.4 | 1.9- 2.5 | 0.6- 1.4 | 300 - 360 | 600 - 910 |
46. Tamranga Beel, Ghilaguri near Ikrabari, Dist.Bongaigaon | 12 | 7.0 - 7.1 | 124 - 156 | 5.3 - 6.0 | 2.0 - 2.4 | 0.7 - 1.3 | 300 - 360 | 510 - 1500 |
47. Hasila Beel, Goalpara (Hasila Beel), Dist.Goalpara, Assam | 12 | 7.0 - 8.0 | 128 - 160 | 5.2 - 5.5 | 2.0 - 2.4 | 0.6 - 1.9 | 300 - 360 | 610 - 1200 |
48. Near view point Bird watching Tower of the Deepor Beel | 10 | 7.0 - 9.0 | 238 - 316 | 5.3 - 10.3 | 4.0 - 8.2 | 1.3 - 2.4 | 300 - 730 | 910 - 1600 |
49. Near picnic spot, 200 mtr from the railway bridge, East Side of the Deepor Beel | 10 | 7.0 - 9.0 | 250 - 326 | 5.1 - 10.5 | 5.0 - 6.2 | 1.5 - 2.4 | 730 - 1100 | 1500 - 2800 |
50. Deepor Beel at Howrapara, Khanamukh before mixing with Khanamukhjaan | 10 | 7.0 - 8.0 | 242 - 288 | 5.3 - 9.5 | 2.0 - 4.0 | 1.2 - 2.2 | 360 - 1500 | 910 - 2800 |
51. Deepor Beel near Assam Engineering College, Jalukbari | 10 | 7.0 - 8.0 | 233 - 288 | 5.1- 9.7 | 2.6 - 5.8 | 1.0 - 2.2 | 620 - 1100 | 1200 - 2800 |
52. Deepor Beel near Azara Railway Station, Ganakpara Chakardoi | 10 | 7.0 - 8.0 | 236 - 302 | 5.1 - 9.6 | 3.5 - 5.8 | 1.3 - 2.1 | 300 - 1500 | 360 - 3500 |
53. Deepor Beel at the center of the Beel | 10 | 7.0 - 9.0 | 238 - 316 | 5.6 - 10.4 | 5.0 - 6.0 | 1.2 - 2.4 | 300 - 730 | 620 - 1600 |
54. Jugibeel, Golaghat | 9 | 7.0 - 8.0 | 92 - 106 | 5.0 - 8.0 | 2.0 - 2.6 | 0.6 - 0.9 | 300 - 360 | 620 - 1500 |
55. Chatla Lake, Cachar | 9 | 7.0 - 7.1 | 110 - 144 | 5.5 - 6.1 | 2.1 - 2.7 | 0.7 - 1.1 | 300 - 720 | 610 - 1500 |
56. Doloo lake at Cachar | 9 | 7.0 - 7.1 | 132 - 142 | 5.1 - 5.5 | 2.3 - 5.5 | 0.7 - 1.1 | 300 - 620 | 730 - 1500 |
57. Panidihing Bird Sanctuary, Sivasagar | 9 | 7.0 - 7.1 | 92 - 112 | 5.1 - 6.1 | 2.0 - 2.4 | 0.7 - 1.2 | 730 - 910 | 1100 - 2100 |
58. Laukhowa beel, Dhubri | 9 | 7.0 - 8.0 | 122 - 162 | 5.0 - 5.6 | 2.1 - 2.6 | 0.6 - 1.1 | 300 - 720 | 720 - 2000 |
59. Maguri beel Near Bridge,Tinsukia | 9 | 7.0 - 8.0 | 120 - 162 | 5.0 - 9.5 | 1.8 - 2.7 | 0.6 - 1.2 | 300 - 360 | 610 - 1400 |
60. Haflong Lake, Haflong Town | 8 | 7.0 - 7.1 | 129 - 192 | 5.1 - 5.8 | 2.2 - 2.6 | 0.8 - 1.0 | 300 - 360 | 620 - 1500 |
N.B.: pH(A scale for measuring acidity/alkalinity) AL: 6.5-8.5; DO(Dissolved Oxygen) AL:4mg/l; BOD(Biochemical Oxygen Demand) AL:3mg/l;
Nitrate-N(Nitrate Nitrogen) AL:50mg/l; Total Coliform (MPN/100ml) AL:5000; Faecal Coliform (MPN/100ml) AL:2500;
Source: Statistical Handbook, Assam - 2024