# //UNITED STATES GEOLOGICAL SURVEY http://water.usgs.gov/ # //NATIONAL WATER INFORMATION SYSTEM http://water.usgs.gov/data.html # //DATA ARE PROVISIONAL AND SUBJECT TO CHANGE UNTIL PUBLISHED BY USGS # //RETRIEVED: 2026-01-14 23:45:03 # //WARNING # //WARNING The stage-discharge rating provided in this file should be # //WARNING considered provisional and subject to change. Stage-discharge # //WARNING ratings change over time as the channel features that control # //WARNING the relation between stage and discharge vary. Users are # //WARNING cautioned to consider carefully the applicability of this # //WARNING rating before using it for decisions that concern personal or # //WARNING public safety or operational consequences. # //FILE TYPE="NWIS RATING" # //DATABASE NUMBER=01 DESCRIPTION=" Standard data base for this site." # //STATION AGENCY="USGS " NUMBER="11162753 " TIME_ZONE="PST" DST_FLAG=Y # //STATION NAME="SAN MATEO C BL LO CRYSTAL SP RES NR SAN MATEO CA" # //LABEL="Discharge (ft^3/s)" # //PARAMETER CODE="00060" # //RATING SHIFTED="20260114234503 PST" # //RATING ID="8.0" TYPE="STGQ" NAME="stage-discharge" AGING=???? # //RATING REMARKS="Rating reflects middle and upper end fill, and low end scour caused by fallen tree in January 2023. WY 2023 measurements used for rating development." # //RATING EXPANSION="logarithmic" # //RATING BREAKPOINT1=4.100000E+00 BREAKPOINT2=6.700000E+00 # //RATING OFFSET1=3.720000E+00 OFFSET2=3.900000E+00 OFFSET3=0.000000E+00 # //RATING_INDEP ROUNDING="????" PARAMETER="Gage height (ft)" # //RATING_DEP ROUNDING="????" PARAMETER="Discharge (ft^3/s)" # //RATING_DATETIME BEGIN=20230102115500 BZONE=-08:00 END=-------------- EZONE=--- AGING=1 # //RATING_DATETIME COMMENT="Rating reflects middle and upper end fill, and low end scour caused by fallen tree in January 2023. WY 2023 measurements used for rating development." # //SHIFT_PREV BEGIN="20251225044500" BZONE="-08:00" END="--------------" EZONE="---" # //SHIFT_PREV STAGE1="4.17" SHIFT1="0.02" STAGE2="4.77" SHIFT2="-0.31" STAGE3="7.50" SHIFT3="0.00" # //SHIFT_PREV COMMENT="Slight scour shift applied as control scour causes IVs computation of Q IVs below 5.0 but no valve adjustment was made. Hold shift to" # //SHIFT_NEXT BEGIN="--------------" BZONE="---" END="--------------" EZONE="---" # //SHIFT_NEXT STAGE1="---" SHIFT1="---" STAGE2="---" SHIFT2="---" STAGE3="---" SHIFT3="---" # //SHIFT_NEXT COMMENT=" " INDEP SHIFT DEP STOR 16N 16N 16N 1S 3.72 0.02 0.00 3.73 0.02 0.01 3.74 0.01 0.01 * 3.75 0.02 0.02 3.76 0.02 0.03 * 3.77 0.02 0.04 3.78 0.02 0.06 3.79 0.02 0.08 3.80 0.02 0.10 3.81 0.02 0.13 3.82 0.02 0.16 3.83 0.02 0.20 3.84 0.02 0.24 3.85 0.02 0.28 3.86 0.02 0.34 3.87 0.02 0.39 3.88 0.02 0.45 3.89 0.02 0.52 3.90 0.02 0.59 3.91 0.02 0.67 3.92 0.02 0.75 3.93 0.02 0.84 3.94 0.02 0.94 3.95 0.02 1.04 3.96 0.02 1.15 3.97 0.02 1.26 3.98 0.02 1.38 3.99 0.02 1.51 4.00 0.02 1.65 4.01 0.02 1.79 4.02 0.02 1.94 4.03 0.02 2.10 4.04 0.02 2.26 4.05 0.02 2.44 4.06 0.02 2.62 4.07 0.02 2.80 4.08 0.02 3.00 4.09 0.02 3.24 4.10 0.02 3.49 * 4.11 0.02 3.75 4.12 0.02 4.01 4.13 0.02 4.28 4.14 0.02 4.56 4.15 0.02 4.84 4.16 0.02 5.13 4.17 0.02 5.43 4.18 0.01 5.57 4.19 0.01 5.70 4.20 0.00 5.84 4.21 0.00 5.98 4.22 -0.01 6.12 4.23 -0.01 6.26 4.24 -0.02 6.40 4.25 -0.02 6.55 4.26 -0.03 6.69 4.27 -0.03 6.84 4.28 -0.04 6.98 4.29 -0.05 7.13 4.30 -0.05 7.28 4.31 -0.06 7.43 4.32 -0.06 7.59 4.33 -0.07 7.74 4.34 -0.07 7.89 4.35 -0.08 8.05 4.36 -0.08 8.20 4.37 -0.09 8.36 4.38 -0.10 8.52 4.39 -0.10 8.68 4.40 -0.11 8.84 4.41 -0.11 9.00 4.42 -0.12 9.17 4.43 -0.12 9.33 4.44 -0.13 9.50 4.45 -0.13 9.66 4.46 -0.14 9.83 4.47 -0.14 10.00 4.48 -0.15 10.17 4.49 -0.16 10.34 4.50 -0.16 10.51 4.51 -0.17 10.68 4.52 -0.17 10.86 4.53 -0.18 11.03 4.54 -0.18 11.21 4.55 -0.19 11.38 4.56 -0.19 11.56 4.57 -0.20 11.74 4.58 -0.21 11.92 4.59 -0.21 12.10 4.60 -0.22 12.28 4.61 -0.22 12.47 4.62 -0.23 12.65 4.63 -0.23 12.84 4.64 -0.24 13.02 4.65 -0.24 13.21 4.66 -0.25 13.40 4.67 -0.26 13.59 4.68 -0.26 13.78 4.69 -0.27 13.97 4.70 -0.27 14.16 4.71 -0.28 14.35 4.72 -0.28 14.55 4.73 -0.29 14.74 4.74 -0.29 14.94 4.75 -0.30 15.14 4.76 -0.30 15.33 4.77 -0.31 15.53 4.78 -0.31 16.03 4.79 -0.31 16.53 4.80 -0.31 17.04 4.81 -0.31 17.55 4.82 -0.30 18.07 4.83 -0.30 18.60 4.84 -0.30 19.13 4.85 -0.30 19.66 4.86 -0.30 20.20 4.87 -0.30 20.75 4.88 -0.30 21.30 4.89 -0.30 21.86 4.90 -0.30 22.42 4.91 -0.29 22.99 4.92 -0.29 23.57 4.93 -0.29 24.14 4.94 -0.29 24.73 4.95 -0.29 25.32 4.96 -0.29 25.91 4.97 -0.29 26.51 4.98 -0.29 27.12 4.99 -0.28 27.73 5.00 -0.28 28.34 5.01 -0.28 28.96 5.02 -0.28 29.59 5.03 -0.28 30.22 5.04 -0.28 30.85 5.05 -0.28 31.49 5.06 -0.28 32.14 5.07 -0.28 32.79 5.08 -0.27 33.44 5.09 -0.27 34.10 5.10 -0.27 34.77 5.11 -0.27 35.44 5.12 -0.27 36.11 5.13 -0.27 36.79 5.14 -0.27 37.47 5.15 -0.27 38.16 5.16 -0.27 38.85 5.17 -0.26 39.55 5.18 -0.26 40.25 5.19 -0.26 40.96 5.20 -0.26 41.67 5.21 -0.26 42.38 5.22 -0.26 43.10 5.23 -0.26 43.83 5.24 -0.26 44.56 5.25 -0.26 45.29 5.26 -0.25 46.03 5.27 -0.25 46.77 5.28 -0.25 47.52 5.29 -0.25 48.27 5.30 -0.25 49.03 5.31 -0.25 49.79 5.32 -0.25 50.55 5.33 -0.25 51.32 5.34 -0.25 52.09 5.35 -0.24 52.87 5.36 -0.24 53.65 5.37 -0.24 54.44 5.38 -0.24 55.23 5.39 -0.24 56.02 5.40 -0.24 56.82 5.41 -0.24 57.63 5.42 -0.24 58.43 5.43 -0.24 59.24 5.44 -0.23 60.06 5.45 -0.23 60.88 5.46 -0.23 61.70 5.47 -0.23 62.53 5.48 -0.23 63.36 5.49 -0.23 64.20 5.50 -0.23 65.04 5.51 -0.23 65.89 5.52 -0.22 66.73 5.53 -0.22 67.59 5.54 -0.22 68.44 5.55 -0.22 69.30 5.56 -0.22 70.17 5.57 -0.22 71.04 5.58 -0.22 71.91 5.59 -0.22 72.79 5.60 -0.22 73.67 5.61 -0.21 74.55 5.62 -0.21 75.44 5.63 -0.21 76.33 5.64 -0.21 77.23 5.65 -0.21 78.13 5.66 -0.21 79.03 5.67 -0.21 79.94 5.68 -0.21 80.85 5.69 -0.21 81.77 5.70 -0.20 82.69 5.71 -0.20 83.61 5.72 -0.20 84.54 5.73 -0.20 85.47 5.74 -0.20 86.41 5.75 -0.20 87.35 5.76 -0.20 88.29 5.77 -0.20 89.24 5.78 -0.20 90.19 5.79 -0.19 91.14 5.80 -0.19 92.10 5.81 -0.19 93.06 5.82 -0.19 94.02 5.83 -0.19 94.99 5.84 -0.19 95.96 5.85 -0.19 96.94 5.86 -0.19 97.92 5.87 -0.19 98.90 5.88 -0.18 99.89 5.89 -0.18 100.88 5.90 -0.18 101.88 5.91 -0.18 102.87 5.92 -0.18 103.88 5.93 -0.18 104.88 5.94 -0.18 105.89 5.95 -0.18 106.90 5.96 -0.17 107.92 5.97 -0.17 108.94 5.98 -0.17 109.96 5.99 -0.17 110.99 6.00 -0.17 112.02 6.01 -0.17 113.06 6.02 -0.17 114.09 6.03 -0.17 115.13 6.04 -0.17 116.18 6.05 -0.16 117.23 6.06 -0.16 118.28 6.07 -0.16 119.33 6.08 -0.16 120.39 6.09 -0.16 121.46 6.10 -0.16 122.52 6.11 -0.16 123.59 6.12 -0.16 124.66 6.13 -0.16 125.74 6.14 -0.15 126.82 6.15 -0.15 127.90 6.16 -0.15 128.99 6.17 -0.15 130.08 6.18 -0.15 131.17 6.19 -0.15 132.27 6.20 -0.15 133.37 6.21 -0.15 134.47 6.22 -0.15 135.58 6.23 -0.14 136.69 6.24 -0.14 137.80 6.25 -0.14 138.92 6.26 -0.14 140.04 6.27 -0.14 141.17 6.28 -0.14 142.29 6.29 -0.14 143.42 6.30 -0.14 144.56 6.31 -0.14 145.69 6.32 -0.13 146.84 6.33 -0.13 147.98 6.34 -0.13 149.13 6.35 -0.13 150.28 6.36 -0.13 151.43 6.37 -0.13 152.59 6.38 -0.13 153.75 6.39 -0.13 154.91 6.40 -0.12 156.08 6.41 -0.12 157.25 6.42 -0.12 158.42 6.43 -0.12 159.60 6.44 -0.12 160.78 6.45 -0.12 161.96 6.46 -0.12 163.15 6.47 -0.12 164.34 6.48 -0.12 165.53 6.49 -0.11 166.73 6.50 -0.11 167.93 6.51 -0.11 169.13 6.52 -0.11 170.34 6.53 -0.11 171.55 6.54 -0.11 172.76 6.55 -0.11 173.97 6.56 -0.11 175.19 6.57 -0.11 176.41 6.58 -0.10 177.64 6.59 -0.10 178.87 6.60 -0.10 180.10 6.61 -0.10 181.33 6.62 -0.10 182.57 6.63 -0.10 183.81 6.64 -0.10 185.06 6.65 -0.10 186.30 6.66 -0.10 187.55 6.67 -0.09 188.81 6.68 -0.09 190.06 6.69 -0.09 191.32 6.70 -0.09 192.58 * 6.71 -0.09 193.85 6.72 -0.09 195.12 6.73 -0.09 196.39 6.74 -0.09 197.67 6.75 -0.09 198.94 6.76 -0.08 200.22 6.77 -0.08 201.51 6.78 -0.08 202.80 6.79 -0.08 204.20 6.80 -0.08 205.63 6.81 -0.08 207.07 6.82 -0.08 208.51 6.83 -0.08 209.97 6.84 -0.07 211.43 6.85 -0.07 212.90 6.86 -0.07 214.37 6.87 -0.07 215.86 6.88 -0.07 217.35 6.89 -0.07 218.85 6.90 -0.07 220.36 6.91 -0.07 221.87 6.92 -0.07 223.40 6.93 -0.06 224.93 6.94 -0.06 226.47 6.95 -0.06 228.02 6.96 -0.06 229.57 6.97 -0.06 231.13 6.98 -0.06 232.71 6.99 -0.06 234.29 7.00 -0.06 235.87 7.01 -0.06 237.47 7.02 -0.05 239.08 7.03 -0.05 240.69 7.04 -0.05 242.31 7.05 -0.05 243.94 7.06 -0.05 245.58 7.07 -0.05 247.22 7.08 -0.05 248.88 7.09 -0.05 250.54 7.10 -0.05 252.21 7.11 -0.04 253.89 7.12 -0.04 255.58 7.13 -0.04 257.28 7.14 -0.04 258.98 7.15 -0.04 260.70 7.16 -0.04 262.42 7.17 -0.04 264.15 7.18 -0.04 265.89 7.19 -0.04 267.64 7.20 -0.03 269.40 7.21 -0.03 271.17 7.22 -0.03 272.94 7.23 -0.03 274.73 7.24 -0.03 276.52 7.25 -0.03 278.32 7.26 -0.03 280.13 7.27 -0.03 281.95 7.28 -0.03 283.78 7.29 -0.02 285.62 7.30 -0.02 287.47 7.31 -0.02 289.32 7.32 -0.02 291.19 7.33 -0.02 293.06 7.34 -0.02 294.95 7.35 -0.02 296.84 7.36 -0.02 298.74 7.37 -0.01 300.65 7.38 -0.01 302.57 7.39 -0.01 304.50 7.40 -0.01 306.44 7.41 -0.01 308.39 7.42 -0.01 310.35 7.43 -0.01 312.32 7.44 -0.01 314.29 7.45 -0.01 316.28 7.46 0.00 318.28 7.47 0.00 320.28 7.48 0.00 322.30 7.49 0.00 324.32 7.50 0.00 326.36 7.51 0.00 328.19 7.52 0.00 330.04 7.53 0.00 331.89 7.54 0.00 333.75 7.55 0.00 335.61 7.56 0.00 337.49 7.57 0.00 339.37 7.58 0.00 341.26 7.59 0.00 343.16 7.60 0.00 345.07 7.61 0.00 346.98 7.62 0.00 348.91 7.63 0.00 350.84 7.64 0.00 352.78 7.65 0.00 354.73 7.66 0.00 356.68 7.67 0.00 358.65 7.68 0.00 360.62 7.69 0.00 362.60 7.70 0.00 364.59 7.71 0.00 366.58 7.72 0.00 368.59 7.73 0.00 370.60 7.74 0.00 372.63 7.75 0.00 374.66 7.76 0.00 376.70 7.77 0.00 378.74 7.78 0.00 380.80 7.79 0.00 382.86 7.80 0.00 384.94 7.81 0.00 387.02 7.82 0.00 389.11 7.83 0.00 391.21 7.84 0.00 393.31 7.85 0.00 395.43 7.86 0.00 397.56 7.87 0.00 399.69 7.88 0.00 401.83 7.89 0.00 403.98 7.90 0.00 406.14 7.91 0.00 408.31 7.92 0.00 410.49 7.93 0.00 412.67 7.94 0.00 414.87 7.95 0.00 417.07 7.96 0.00 419.28 7.97 0.00 421.51 7.98 0.00 423.74 7.99 0.00 425.98 8.00 0.00 428.23 8.01 0.00 430.48 8.02 0.00 432.75 8.03 0.00 435.03 8.04 0.00 437.31 8.05 0.00 439.60 8.06 0.00 441.91 8.07 0.00 444.22 8.08 0.00 446.54 8.09 0.00 448.87 8.10 0.00 451.21 8.11 0.00 453.56 8.12 0.00 455.92 8.13 0.00 458.29 8.14 0.00 460.67 8.15 0.00 463.05 8.16 0.00 465.45 8.17 0.00 467.85 8.18 0.00 470.27 8.19 0.00 472.69 8.20 0.00 475.13 8.21 0.00 477.57 8.22 0.00 480.03 8.23 0.00 482.49 8.24 0.00 484.96 8.25 0.00 487.44 8.26 0.00 489.94 8.27 0.00 492.44 8.28 0.00 494.95 8.29 0.00 497.47 8.30 0.00 500.00 * 8.31 0.00 502.53 8.32 0.00 505.07 8.33 0.00 507.62 8.34 0.00 510.17 8.35 0.00 512.74 8.36 0.00 515.32 8.37 0.00 517.91 8.38 0.00 520.51 8.39 0.00 523.11 8.40 0.00 525.73 8.41 0.00 528.36 8.42 0.00 530.99 8.43 0.00 533.64 8.44 0.00 536.30 8.45 0.00 538.97 8.46 0.00 541.64 8.47 0.00 544.33 8.48 0.00 547.03 8.49 0.00 549.74 8.50 0.00 552.46 8.51 0.00 555.18 8.52 0.00 557.92 8.53 0.00 560.67 8.54 0.00 563.43 8.55 0.00 566.20 8.56 0.00 568.98 8.57 0.00 571.77 8.58 0.00 574.57 8.59 0.00 577.38 8.60 0.00 580.20 8.61 0.00 583.04 8.62 0.00 585.88 8.63 0.00 588.73 8.64 0.00 591.59 8.65 0.00 594.47 8.66 0.00 597.35 8.67 0.00 600.25 8.68 0.00 603.16 8.69 0.00 606.07 8.70 0.00 609.00 *