Standard Water Quality Report
Download Raw Water Quality Data CSVSample Point - ALD |
Download Sample Point Report CSV / Inflow: Yes / Outflow: No
Date | Method of Flow | Flow - Field (gal/min) | pH - Field (S.U.) | pH - Lab (S.U.) | ORP - Field (mvolts) | DO - Field (mg/L) | Temp - Field (C) | Cond - Lab (umhos/cm) | Alkalinity - Field (mg/L) | Alkalinity - Lab (mg/L) | Acidity - Lab (mg/L) | T. Fe - Lab (mg/L) | D. Fe - Lab (mg/L) | T. Mn - Lab (mg/L) | D. Mn - Lab (mg/L) | T. Al - Lab (mg/L) | D. Al - Lab (mg/L) | SO4 - Lab (mg/L) | TSS - Lab (mg/L) | Ferrous Iron (mg/L) Lab |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2003-05-27 | -- | -- | 6.74 | -- | -- | -- | 9.2 | -- | 132 | -- | 24 | 68.403 | -- | 28.668 | -- | <0.01 | -- | 291.144 | -- | -- |
| 2003-07-26 | -- | -- | 6.35 | -- | -- | -- | 10.9 | -- | 111 | -- | 124 | 3.96 | -- | <0.01 | -- | <0.01 | -- | 21.561 | -- | -- |
| 2003-10-12 | -- | -- | 6.33 | -- | -- | -- | 9.4 | -- | 91 | -- | 94 | 0.21 | -- | <0.01 | -- | <0.01 | -- | 129.86 | -- | -- |
| 2004-04-01 | -- | -- | -- | 6.27 | -- | -- | 7.9 | -- | 113 | -- | 100 | 0.665 | -- | 0.198 | -- | <0.01 | -- | 28.44 | -- | -- |
| 2009-09-20 | -- | 8 | 6.55 | 6.31 | -- | -- | 11.0 | 670 | 157 | 57.10 | 3.42 | 62.54 | -- | 4.54 | -- | 0.04 | -- | 287.9 | 59 | -- |
| 2010-04-18 | -- | -- | 6.62 | 6.86 | -- | -- | 8.5 | 673 | 109.0 | 105.21 | -18.62 | 76.73 | -- | 4.07 | -- | 0.04 | -- | 275.0 | 39 | -- |
| 2012-05-02 | -- | -- | 6.59 | 6.57 | -- | -- | 9.9 | 610 | 160 | 52.2 | -2.79 | 61.08 | -- | 4.84 | -- | <0.04 | -- | 274.1 | 49 | -- |
| 2015-04-27 | -- | -- | 6.7 | 6.12 | -- | -- | 8.3 | 656 | 112 | 99.04 | 13.73 | 67.42 | -- | 4.63 | -- | <0.10 | -- | 229.3 | 42 | -- |
| 2017-07-14 | -- | 14.7 | -- | 5.67 | -- | -- | -- | -- | 42.29 | -- | -25.4 | 61.72 | -- | 4.46 | -- | <0.10 | -- | 233.6 | 90 | -- |
| 2017-10-30 | -- | -- | 6.6 | 6.15 | -- | -- | 9.5 | 694 | 130 | 100.83 | -19.18 | 84.88 | -- | 4.46 | -- | <0.10 | -- | 251 | 24 | -- |
| 2018-05-11 | -- | -- | 6.68 | 6.06 | -- | -- | 10.5 | 685 | 100 | 64.77 | -16.32 | 57.42 | -- | 4.16 | -- | <0.10 | -- | 284.3 | 59 | -- |
| 2018-06-18 | -- | -- | 6.78 | 5.86 | -- | -- | 17.9 | 596 | 138 | 77.43 | -19.1 | 59.59 | -- | 4.53 | -- | <0.10 | -- | 257.6 | 60 | -- |
| 2019-04-18 | -- | -- | 7.03 | 6.54 | -- | -- | 8.5 | -- | -- | 98.74 | -22.49 | 43.09 | -- | 3.57 | -- | <0.10 | -- | 287.4 | 12 | -- |
| 2020-06-01 | -- | -- | 7.00 | 6.61 | -- | -- | 11.8 | 621 | -- | 78.83 | -13.20 | 55.66 | -- | 4.16 | -- | <0.10 | -- | 246.1 | 43 | -- |
| 2023-05-09 | Measured | 15 | 6.41 | 6.62 | -- | -- | 11.6 | 652 | 144 | 33.17 | -13.13 | 39.94 | -- | 4.00 | -- | 0.62 | -- | 319.5 | 20 | -- |
| 2025-05-06 | Measured | 16 | 6.28 | 6.23 | -- | -- | 10.2 | -- | 140 | 67.0 | -- | 59.7 | -- | 4.41 | -- | 0.016 | -- | 233 | 44 | -- |
| Minimum: | 0 | 8 | 6.28 | 5.67 | -- | -- | 7.9 | 596 | 42.29 | 33.17 | -25.4 | 0.21 | -- | 0.198 | -- | 0.016 | -- | 21.561 | 12 | -- |
| Maximum: | 0 | 16 | 7.03 | 6.86 | -- | -- | 17.9 | 694 | 160 | 105.21 | 124 | 84.88 | -- | 28.668 | -- | 0.62 | -- | 319.5 | 90 | -- |
| Average: | 0 | 13 | 6.62 | 6.30 | -- | -- | 10.3 | 651 | 119.95 | 76 | 13.9 | 50.19 | -- | 5.76 | -- | 0.18 | -- | 228.1 | 45.1 | -- |
| Range: | 0 | 8 | 0.75 | 1.19 | -- | -- | 10 | 98 | 117.71 | 72.04 | 149.4 | 84.67 | -- | 28.47 | -- | 0.604 | -- | 297.939 | 78 | -- |
| Median: | 0 | 14.85 | 6.61 | 6.27 | -- | -- | 9.9 | 656 | 121.5 | 77.43 | -13.13 | 59.65 | -- | 4.44 | -- | 0.04 | -- | 254.3 | 43.5 | -- |
| Loading (lb/day): | 18.86 | 8.12 | -2.18 | 8.9 | -- | 0.7 | -- | 0.04 | -- |
Sample Point Description: Effluent of ALD
- Records with no value are not included in statistical calculations.
- Values lower than the minimum detection limit are assumed to be 0.
- Average pH is calculated using the arithmetic mean of pH values. Hydronium ion concentrations were not used.
- This work is licensed under the Creative Commons Attribution-NonCommercial-ShareAlike License.
To view a copy of this license, visit http://creativecommons.org/licenses/by-nc-sa/2.5/ or send a letter to Creative Commons, 559 Nathan Abbott Way, Stanford, California 94305, USA.
Sample Point - SP |
Download Sample Point Report CSV / Inflow: No / Outflow: No
Date | Method of Flow | Flow - Field (gal/min) | pH - Field (S.U.) | pH - Lab (S.U.) | ORP - Field (mvolts) | DO - Field (mg/L) | Temp - Field (C) | Cond - Lab (umhos/cm) | Alkalinity - Field (mg/L) | Alkalinity - Lab (mg/L) | Acidity - Lab (mg/L) | T. Fe - Lab (mg/L) | D. Fe - Lab (mg/L) | T. Mn - Lab (mg/L) | D. Mn - Lab (mg/L) | T. Al - Lab (mg/L) | D. Al - Lab (mg/L) | SO4 - Lab (mg/L) | TSS - Lab (mg/L) | Ferrous Iron (mg/L) Lab |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2009-09-20 | -- | -- | 6.18 | 6.44 | -- | -- | 19.2 | 630 | 47 | 26.20 | -13.49 | 12.96 | -- | 3.63 | -- | 0.04 | -- | 280.0 | 37 | -- |
| 2010-04-18 | -- | -- | 6.04 | 6.69 | -- | -- | 9.0 | 623 | 37.0 | 27.17 | -12.15 | 18.53 | -- | 4.07 | -- | 0.04 | -- | 293.0 | 29 | -- |
| 2012-05-02 | -- | -- | 6.59 | 6.61 | -- | -- | 17 | 567 | 84 | 36.36 | -21.09 | 15.58 | -- | 4.72 | -- | <0.04 | -- | 275.4 | 32 | -- |
| 2015-04-27 | -- | -- | 6.78 | 6.26 | -- | -- | 10.1 | 616 | 63 | 42.98 | -10.19 | 32.23 | -- | 4.28 | -- | <0.10 | -- | 237.3 | 71 | -- |
| 2018-05-11 | -- | -- | 6.66 | 6.13 | -- | -- | 16.1 | 638 | 84 | 39.44 | -18.31 | 28.41 | -- | 4.31 | -- | <0.10 | -- | 285.5 | 44 | -- |
| 2020-06-01 | -- | -- | 6.90 | 6.56 | -- | -- | 18.0 | 573 | -- | 40.11 | -22.26 | 24.17 | -- | 3.97 | -- | <0.10 | -- | 233.4 | 38 | -- |
| 2023-05-09 | Measured | 8 | 6.37 | 6.34 | -- | -- | 24.3 | 569 | 64 | 34.46 | -21.16 | 18.76 | -- | 4.09 | -- | 0.52 | -- | 243.5 | 30 | -- |
| 2025-05-06 | Estimated | 15 | 6.1 | 5.99 | -- | -- | 14.2 | -- | 80 | 37.0 | -- | 31.7 | -- | 4.34 | -- | 0.019 | -- | 227 | 189 | -- |
| Minimum: | 0 | 8 | 6.04 | 5.99 | -- | -- | 9.0 | 567 | 37.0 | 26.20 | -22.26 | 12.96 | -- | 3.63 | -- | 0.019 | -- | 227 | 29 | -- |
| Maximum: | 0 | 15 | 6.90 | 6.69 | -- | -- | 24.3 | 638 | 84 | 42.98 | -10.19 | 32.23 | -- | 4.72 | -- | 0.52 | -- | 293.0 | 189 | -- |
| Average: | 0 | 12 | 6.45 | 6.38 | -- | -- | 16.0 | 602 | 65.57 | 35 | -17.0 | 22.79 | -- | 4.18 | -- | 0.15 | -- | 259.4 | 58.8 | -- |
| Range: | 0 | 7 | 0.86 | 0.7 | -- | -- | 15.3 | 71 | 47 | 16.78 | 12.07 | 19.27 | -- | 1.09 | -- | 0.501 | -- | 66 | 160 | -- |
| Median: | 0 | 11.5 | 6.48 | 6.39 | -- | -- | 16.55 | 616 | 64 | 36.68 | -18.31 | 21.47 | -- | 4.19 | -- | 0.04 | -- | 259.45 | 37.5 | -- |
| Loading (lb/day): | 10.29 | 4.99 | -2.03 | 3.76 | -- | 0.59 | -- | 0.03 | -- |
Sample Point Description: Effluent of Settling Pond
- Records with no value are not included in statistical calculations.
- Values lower than the minimum detection limit are assumed to be 0.
- Average pH is calculated using the arithmetic mean of pH values. Hydronium ion concentrations were not used.
- This work is licensed under the Creative Commons Attribution-NonCommercial-ShareAlike License.
To view a copy of this license, visit http://creativecommons.org/licenses/by-nc-sa/2.5/ or send a letter to Creative Commons, 559 Nathan Abbott Way, Stanford, California 94305, USA.
Sample Point - Final |
Download Sample Point Report CSV / Inflow: No / Outflow: Yes
Date | Method of Flow | Flow - Field (gal/min) | pH - Field (S.U.) | pH - Lab (S.U.) | ORP - Field (mvolts) | DO - Field (mg/L) | Temp - Field (C) | Cond - Lab (umhos/cm) | Alkalinity - Field (mg/L) | Alkalinity - Lab (mg/L) | Acidity - Lab (mg/L) | T. Fe - Lab (mg/L) | D. Fe - Lab (mg/L) | T. Mn - Lab (mg/L) | D. Mn - Lab (mg/L) | T. Al - Lab (mg/L) | D. Al - Lab (mg/L) | SO4 - Lab (mg/L) | TSS - Lab (mg/L) | Ferrous Iron (mg/L) Lab |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2009-09-20 | -- | 8 | 6.85 | 6.57 | -- | -- | 17.5 | 613 | 15 | 16.29 | -7.64 | 0.26 | -- | 4.54 | -- | 0.04 | -- | 278.9 | 2 | -- |
| 2010-04-18 | -- | -- | 6.75 | 6.96 | -- | -- | 9.2 | 621 | 20.0 | 21.30 | -14.50 | 1.40 | -- | 2.55 | -- | 0.04 | -- | 276.0 | 11 | -- |
| 2012-05-02 | -- | -- | 6.35 | 6.99 | -- | -- | 19.1 | 561 | 39 | 21.87 | -16.92 | 0.29 | -- | 1.38 | -- | <0.04 | -- | 257.3 | 5 | -- |
| 2015-04-27 | -- | -- | 6.89 | 7.07 | -- | -- | 11.4 | 571 | 45 | 22.02 | -6.45 | 0.29 | -- | 0.65 | -- | <0.10 | -- | 229.3 | <5 | -- |
| 2018-05-11 | -- | -- | 6.77 | 6.77 | -- | -- | 17.5 | 609 | 24 | 26.75 | -19.3 | 0.67 | -- | 2.08 | -- | <0.10 | -- | 255.9 | 6 | -- |
| 2020-06-01 | -- | -- | 7.03 | 6.95 | -- | -- | 23.9 | 537 | -- | 27.19 | -16.55 | 0.62 | -- | 1.81 | -- | <0.10 | -- | 247.5 | <5 | -- |
| 2023-05-09 | Assumed | 8 | 6.96 | 7.24 | -- | -- | 25.7 | 540 | 36 | 24.96 | -11.36 | 0.38 | -- | 1.02 | -- | 0.51 | -- | 240 | <5 | -- |
| 2025-05-06 | Estimated | 13 | 6.63 | 6.71 | -- | -- | 17.9 | -- | 30 | 23.8 | -- | 0.281 | -- | 0.989 | -- | 0.015 | -- | 198 | <5 | -- |
| Minimum: | 0 | 8 | 6.35 | 6.57 | -- | -- | 9.2 | 537 | 15 | 16.29 | -19.3 | 0.26 | -- | 0.65 | -- | 0.015 | -- | 198 | 2 | -- |
| Maximum: | 0 | 13 | 7.03 | 7.24 | -- | -- | 25.7 | 621 | 45 | 27.19 | -6.45 | 1.40 | -- | 4.54 | -- | 0.51 | -- | 278.9 | 11 | -- |
| Average: | 0 | 10 | 6.78 | 6.91 | -- | -- | 17.8 | 579 | 29.86 | 23 | -13.3 | 0.52 | -- | 1.88 | -- | 0.15 | -- | 247.9 | 6.0 | -- |
| Range: | 0 | 5 | 0.68 | 0.67 | -- | -- | 16.5 | 84 | 30 | 10.9 | 12.85 | 1.14 | -- | 3.89 | -- | 0.495 | -- | 80.9 | 9 | -- |
| Median: | 0 | 8 | 6.81 | 6.96 | -- | -- | 17.7 | 571 | 30 | 22.91 | -14.5 | 0.34 | -- | 1.6 | -- | 0.04 | -- | 251.7 | 5.5 | -- |
| Loading (lb/day): | 3.2 | 2.56 | -1.09 | 0.04 | -- | 0.23 | -- | 0.02 | -- |
Sample Point Description: Final Effluent of Little Hefren Passive System
- Records with no value are not included in statistical calculations.
- Values lower than the minimum detection limit are assumed to be 0.
- Average pH is calculated using the arithmetic mean of pH values. Hydronium ion concentrations were not used.
- This work is licensed under the Creative Commons Attribution-NonCommercial-ShareAlike License.
To view a copy of this license, visit http://creativecommons.org/licenses/by-nc-sa/2.5/ or send a letter to Creative Commons, 559 Nathan Abbott Way, Stanford, California 94305, USA.
Sample Point - Source |
Download Sample Point Report CSV / Inflow: No / Outflow: No
Date | Method of Flow | Flow - Field (gal/min) | pH - Field (S.U.) | pH - Lab (S.U.) | ORP - Field (mvolts) | DO - Field (mg/L) | Temp - Field (C) | Cond - Lab (umhos/cm) | Alkalinity - Field (mg/L) | Alkalinity - Lab (mg/L) | Acidity - Lab (mg/L) | T. Fe - Lab (mg/L) | D. Fe - Lab (mg/L) | T. Mn - Lab (mg/L) | D. Mn - Lab (mg/L) | T. Al - Lab (mg/L) | D. Al - Lab (mg/L) | SO4 - Lab (mg/L) | TSS - Lab (mg/L) | Ferrous Iron (mg/L) Lab |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2001-09-07 | -- | -- | 6.1 | 3.2 | -- | -- | 9.6 | -- | 42 | 0 | 92 | 74.1 | -- | 4.8 | -- | 0.1 | -- | -- | -- | -- |
| Minimum: | -- | -- | 6.1 | 3.2 | -- | -- | 9.6 | -- | 42 | 0 | 92 | 74.1 | -- | 4.8 | -- | 0.1 | -- | -- | -- | -- |
| Maximum: | -- | -- | 6.1 | 3.2 | -- | -- | 9.6 | -- | 42 | 0 | 92 | 74.1 | -- | 4.8 | -- | 0.1 | -- | -- | -- | -- |
| Average: | -- | -- | 6.10 | 3.20 | -- | -- | 9.6 | -- | 42.00 | 0 | 92.0 | 74.10 | -- | 4.80 | -- | 0.10 | -- | -- | -- | -- |
| Range: | -- | -- | 0 | 0 | -- | -- | 0 | -- | 0 | 0 | 0 | 0 | -- | 0 | -- | 0 | -- | -- | -- | -- |
| Median: | -- | -- | 6.1 | 3.2 | -- | -- | 9.6 | -- | 42 | 0 | 92 | 74.1 | -- | 4.8 | -- | 0.1 | -- | -- | -- | -- |
| Loading (lb/day): | -- | -- | -- | -- | -- | -- | -- | -- | -- |
Sample Point Description:
Raw AMD going into the system. Cannot be sampled currently due to the raw water flowing directly into the ALD. Was sampled in 2001 during/before construction of the system.
- Records with no value are not included in statistical calculations.
- Values lower than the minimum detection limit are assumed to be 0.
- Average pH is calculated using the arithmetic mean of pH values. Hydronium ion concentrations were not used.
- This work is licensed under the Creative Commons Attribution-NonCommercial-ShareAlike License.
To view a copy of this license, visit http://creativecommons.org/licenses/by-nc-sa/2.5/ or send a letter to Creative Commons, 559 Nathan Abbott Way, Stanford, California 94305, USA.