Standard Water Quality Report
Download Raw Water Quality Data CSVSample Point - L2 |
Download Sample Point Report CSV / Inflow: Yes / Outflow: No
Sample Point Description: Abandoned mine discharge a.k.a. Langeloth Borehole.
- 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 - L2A |
Download Sample Point Report CSV / Inflow: No / Outflow: Yes
Sample Point Description: Effluent pipe of Settling Basin #2.
- 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 - L1 |
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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2000-01-10 | -- | -- | 7.2 | 7.4 | -- | -- | -- | -- | -- | 152 | 0 | 1.6 | -- | 0.473 | -- | 0.653 | -- | 263.9 | 10 | -- |
| 2000-02-16 | -- | -- | 7.3 | 6.9 | -- | -- | -- | -- | -- | 110 | 0 | 1.05 | -- | 0.297 | -- | 0.788 | -- | 136 | 6 | -- |
| 2000-03-07 | -- | -- | 7.5 | 7.5 | -- | -- | -- | -- | -- | 180 | 0 | 1.89 | -- | 0.458 | -- | 0.553 | -- | 258.8 | 4 | -- |
| 2000-04-20 | -- | -- | 7.5 | 7.1 | -- | -- | -- | -- | -- | 172 | 0 | 1.49 | -- | 0.308 | -- | 0.792 | -- | 137.5 | 3 | -- |
| 2000-05-15 | -- | -- | 7.8 | 7.8 | -- | -- | -- | -- | -- | 220 | 0 | 1.28 | -- | 0.494 | -- | 0.5 | -- | 273 | 4 | -- |
| 2000-06-27 | -- | -- | 7.7 | 7.5 | -- | -- | -- | -- | -- | 186 | 0 | 0.996 | -- | 0.483 | -- | 0.5 | -- | 210.5 | 4 | -- |
| 2000-07-24 | -- | -- | 7.8 | 7.3 | -- | -- | -- | -- | -- | 204 | 0 | 0.928 | -- | 0.696 | -- | 0.5 | -- | 227.8 | 3 | -- |
| 2000-08-28 | -- | -- | 7.6 | 7.4 | -- | -- | -- | -- | -- | 206 | 0 | 0.915 | -- | 0.472 | -- | 0.5 | -- | 264.3 | 3 | -- |
| Minimum: | -- | -- | 7.2 | 6.9 | -- | -- | -- | -- | -- | 110 | 0 | 0.915 | -- | 0.297 | -- | 0.5 | -- | 136 | 3 | -- |
| Maximum: | -- | -- | 7.8 | 7.8 | -- | -- | -- | -- | -- | 220 | 0 | 1.89 | -- | 0.696 | -- | 0.792 | -- | 273 | 10 | -- |
| Average: | -- | -- | 7.55 | 7.36 | -- | -- | -- | -- | -- | 179 | 0 | 1.27 | -- | 0.46 | -- | 0.60 | -- | 221.5 | 4.6 | -- |
| Range: | -- | -- | 0.6 | 0.9 | -- | -- | -- | -- | -- | 110 | 0 | 0.975 | -- | 0.399 | -- | 0.292 | -- | 137 | 7 | -- |
| Median: | -- | -- | 7.55 | 7.4 | -- | -- | -- | -- | -- | 183 | 0 | 1.17 | -- | 0.47 | -- | 0.53 | -- | 243.3 | 4 | -- |
| Loading (lb/day): | -- | -- | -- | -- | -- | -- | -- | -- | -- |
Sample Point Description: Unnamed tributary to Burgetts Fork Raccoon Creek upstream of L2 (Langeloth Borehole).
- 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 - L3 |
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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2000-01-10 | -- | -- | 7.3 | 7.5 | -- | -- | -- | -- | -- | 154 | 0 | 1.51 | -- | 0.502 | -- | 0.5 | -- | 254.2 | 6 | -- |
| 2000-02-16 | -- | -- | 7.3 | 6.9 | -- | -- | -- | -- | -- | 110 | 0 | 1.11 | -- | 0.316 | -- | 0.684 | -- | 147 | 3 | -- |
| 2000-03-07 | -- | -- | 7.4 | 7.6 | -- | -- | -- | -- | -- | 180 | 0 | 1.56 | -- | 0.463 | -- | 0.5 | -- | 253.6 | 4 | -- |
| 2000-04-20 | -- | -- | 7.7 | 7.2 | -- | -- | -- | -- | -- | 170 | 0 | 1.31 | -- | 0.3 | -- | 0.607 | -- | 225.1 | 3 | -- |
| 2000-05-15 | -- | -- | 7.8 | 7.9 | -- | -- | -- | -- | -- | 218 | 0 | 1.22 | -- | 0.502 | -- | 0.5 | -- | 460 | 3 | -- |
| 2000-06-27 | -- | -- | 7.6 | 7.1 | -- | -- | -- | -- | -- | 172 | 0 | 4.57 | -- | 0.663 | -- | 0.5 | -- | 376 | 10 | -- |
| 2000-07-24 | -- | -- | 7.5 | 7.2 | -- | -- | -- | -- | -- | 194 | 0 | 2.45 | -- | 0.935 | -- | 0.5 | -- | 502.2 | 3 | -- |
| 2000-08-28 | -- | -- | 7.1 | 6.9 | -- | -- | -- | -- | -- | 168 | 0 | 9.49 | -- | 0.955 | -- | 0.5 | -- | 725 | 10 | -- |
| 2001-04-25 | -- | -- | 7.4 | 7.8 | -- | -- | -- | -- | -- | 156 | 0 | 3.06 | -- | 0.318 | -- | 0.5 | -- | 457.6 | 16 | -- |
| 2001-05-21 | -- | -- | 7.3 | 7.2 | -- | -- | -- | -- | -- | 184 | 0 | 8.23 | -- | 0.998 | -- | 0.5 | -- | 576.5 | 18 | -- |
| 2001-06-14 | -- | -- | 7.5 | 7.6 | -- | -- | -- | -- | -- | 190 | 0 | 2.21 | -- | 0.653 | -- | 0.5 | -- | 389.9 | 10 | -- |
| 2001-07-26 | Measured | 11.54 | 7.8 | 7.8 | -- | -- | -- | -- | -- | 184 | 0 | 0.641 | -- | 0.639 | -- | 0.5 | -- | 239.4 | 16 | -- |
| 2003-06-30 | -- | -- | 7.4 | 7.1 | -- | -- | -- | -- | -- | 148.6 | 0 | 8.33 | -- | 0.654 | -- | 0.5 | -- | 272.4 | 22 | -- |
| Minimum: | 0 | 11.54 | 7.1 | 6.9 | -- | -- | -- | -- | -- | 110 | 0 | 0.641 | -- | 0.3 | -- | 0.5 | -- | 147 | 3 | -- |
| Maximum: | 0 | 11.54 | 7.8 | 7.9 | -- | -- | -- | -- | -- | 218 | 0 | 9.49 | -- | 0.998 | -- | 0.684 | -- | 725 | 22 | -- |
| Average: | 0 | 12 | 7.47 | 7.37 | -- | -- | -- | -- | -- | 171 | 0 | 3.51 | -- | 0.61 | -- | 0.52 | -- | 375.3 | 9.5 | -- |
| Range: | 0 | 0 | 0.7 | 1 | -- | -- | -- | -- | -- | 108 | 0 | 8.849 | -- | 0.698 | -- | 0.184 | -- | 578 | 19 | -- |
| Median: | 0 | 11.54 | 7.4 | 7.2 | -- | -- | -- | -- | -- | 172 | 0 | 2.21 | -- | 0.64 | -- | 0.5 | -- | 376 | 10 | -- |
| Loading (lb/day): | -- | 25.52 | -- | 0.09 | -- | 0.09 | -- | 0.07 | -- |
Sample Point Description: Unnamed tributary to Burgetts Fork Raccoon Creek downstream of Langeloth passive treatment 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 - L4 |
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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1970-03-05 | -- | -- | -- | 6.8 | -- | -- | -- | -- | -- | 80 | -- | 3.1 | -- | -- | -- | -- | -- | 145 | -- | -- |
| 1972-02-03 | -- | -- | -- | 7.6 | -- | -- | -- | -- | -- | 179 | -- | 0.9 | -- | -- | -- | -- | -- | 90 | -- | -- |
| 1999-09-13 | -- | -- | -- | 7.9 | -- | -- | -- | -- | -- | 264 | 0 | 0.3 | -- | 0.227 | -- | 0.5 | -- | 151.2 | -- | -- |
| 1999-10-18 | -- | -- | -- | 8 | -- | -- | -- | -- | -- | 246 | 0 | 0.3 | -- | 0.164 | -- | 0.5 | -- | 165 | -- | -- |
| 1999-11-15 | -- | -- | -- | 7.5 | -- | -- | -- | -- | -- | 226 | 0 | 0.3 | -- | 0.133 | -- | 0.5 | -- | 135 | -- | -- |
| 1999-12-01 | -- | -- | -- | 7.5 | -- | -- | -- | -- | -- | 212 | 0 | 0.356 | -- | 0.182 | -- | 0.5 | -- | 98.9 | -- | -- |
| 2000-01-10 | -- | -- | 7.5 | 8 | -- | -- | -- | -- | -- | 184 | 0 | 0.3 | -- | 0.085 | -- | 0.5 | -- | 54.5 | 3 | -- |
| 2000-02-16 | -- | -- | 7.5 | 7.5 | -- | -- | -- | -- | -- | 148 | 0 | 1.11 | -- | 0.074 | -- | 0.766 | -- | 45 | 12 | -- |
| 2000-03-07 | -- | -- | 7.6 | 8.1 | -- | -- | -- | -- | -- | 200 | 0 | 0.308 | -- | 0.077 | -- | 0.5 | -- | 65.4 | 6 | -- |
| 2000-04-20 | -- | -- | 7.8 | 7.7 | -- | -- | -- | -- | -- | 200 | 0 | 0.374 | -- | 0.077 | -- | 0.5 | -- | 81.9 | 3 | -- |
| 2000-05-15 | -- | -- | 7.8 | 8.1 | -- | -- | -- | -- | -- | 214 | 0 | 0.46 | -- | 0.167 | -- | 0.5 | -- | 50 | 3 | -- |
| 2000-06-27 | -- | -- | 8 | 7.9 | -- | -- | -- | -- | -- | 226 | 0 | 1.84 | -- | 0.148 | -- | 1.25 | -- | 72 | 22 | -- |
| 2000-07-24 | -- | -- | 8 | 8 | -- | -- | -- | -- | -- | 228 | 0 | 0.423 | -- | 0.076 | -- | 0.5 | -- | 55.2 | 3 | -- |
| 2000-08-28 | -- | -- | 8 | 7.9 | -- | -- | -- | -- | -- | 238 | 0 | 0.3 | -- | 0.05 | -- | 0.5 | -- | 91.7 | 3 | -- |
| 2000-09-27 | -- | -- | 7.9 | 8.1 | -- | -- | -- | -- | -- | 222 | 0 | 0.324 | -- | 0.05 | -- | 0.05 | -- | 153.6 | 3 | -- |
| 2000-10-12 | -- | -- | 7.8 | 7.4 | -- | -- | -- | -- | -- | 224 | 0 | 0.3 | -- | 0.068 | -- | 0.5 | -- | 148.9 | 3 | -- |
| 2000-11-13 | -- | -- | 8 | 8 | -- | -- | -- | -- | -- | 222 | 0 | 0.44 | -- | 0.05 | -- | 0.5 | -- | 62.7 | 3 | -- |
| 2000-12-04 | -- | -- | 7.8 | 8 | -- | -- | -- | -- | -- | 244 | 0 | 0.328 | -- | 0.89 | -- | 0.5 | -- | 117.5 | 3 | -- |
| 2020-05-20 | -- | -- | 7.49 | -- | -- | -- | 17.5 | -- | 188 | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Minimum: | -- | -- | 7.49 | 6.8 | -- | -- | 17.5 | -- | 188 | 80 | 0 | 0.3 | -- | 0.05 | -- | 0.05 | -- | 45 | 3 | -- |
| Maximum: | -- | -- | 8 | 8.1 | -- | -- | 17.5 | -- | 188 | 264 | 0 | 3.1 | -- | 0.89 | -- | 1.25 | -- | 165 | 22 | -- |
| Average: | -- | -- | 7.78 | 7.78 | -- | -- | 17.5 | -- | 188.00 | 209 | 0 | 0.65 | -- | 0.16 | -- | 0.54 | -- | 99.1 | 5.6 | -- |
| Range: | -- | -- | 0.51 | 1.3 | -- | -- | 0 | -- | 0 | 184 | 0 | 2.8 | -- | 0.84 | -- | 1.2 | -- | 120 | 19 | -- |
| Median: | -- | -- | 7.8 | 7.9 | -- | -- | 17.5 | -- | 188 | 222 | 0 | 0.34 | -- | 0.08 | -- | 0.5 | -- | 90.85 | 3 | -- |
| Loading (lb/day): | -- | -- | -- | -- | -- | -- | -- | -- | -- |
Sample Point Description: Burgetts Fork Raccoon Creek upstream of unnamed tributary which L2 flows into.
- 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 - L5 |
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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2000-01-10 | -- | -- | 7.4 | 7.9 | -- | -- | -- | -- | -- | 184 | 0 | 0.301 | -- | 0.126 | -- | 0.5 | -- | 67 | 3 | -- |
| 2000-02-16 | -- | -- | 7.5 | 7.5 | -- | -- | -- | -- | -- | 144 | 0 | 1.21 | -- | 0.094 | -- | 0.784 | -- | 50 | 6 | -- |
| 2000-03-07 | -- | -- | 7.5 | 8.1 | -- | -- | -- | -- | -- | 200 | 0 | 0.361 | -- | 0.104 | -- | 0.5 | -- | 65.7 | 4 | -- |
| 2000-04-20 | -- | -- | 7.8 | 7.6 | -- | -- | -- | -- | -- | 196 | 0 | 0.341 | -- | 0.099 | -- | 0.5 | -- | 68.6 | 3 | -- |
| 2000-05-15 | -- | -- | 7.8 | 8 | -- | -- | -- | -- | -- | 216 | 0 | 0.703 | -- | 0.24 | -- | 0.5 | -- | 124.7 | 3 | -- |
| 2000-06-27 | -- | -- | 8 | 7.9 | -- | -- | -- | -- | -- | 226 | 0 | 2.16 | -- | 0.197 | -- | 1.13 | -- | 80 | 18 | -- |
| 2000-07-24 | -- | -- | 7.8 | 7.9 | -- | -- | -- | -- | -- | 226 | 0 | 0.595 | -- | 0.139 | -- | 0.5 | -- | 65.1 | 3 | -- |
| 2000-08-28 | -- | -- | 8 | 7.7 | -- | -- | -- | -- | -- | 226 | 0 | 1.36 | -- | 0.159 | -- | 0.5 | -- | 134.5 | 3 | -- |
| 2000-09-27 | -- | -- | 7.8 | 8 | -- | -- | -- | -- | -- | 220 | 0 | 0.361 | -- | 0.139 | -- | 0.5 | -- | 137.2 | 3 | -- |
| 2000-10-12 | -- | -- | 7.8 | 7.3 | -- | -- | -- | -- | -- | 224 | 0 | 0.3 | -- | 0.174 | -- | 0.5 | -- | 181.4 | 3 | -- |
| 2000-11-13 | -- | -- | 8 | 8.1 | -- | -- | -- | -- | -- | 222 | 0 | 0.3 | -- | 0.096 | -- | 0.5 | -- | 106 | 3 | -- |
| 2000-12-04 | -- | -- | 7.8 | 7.9 | -- | -- | -- | -- | -- | 244 | 0 | 0.317 | -- | 0.157 | -- | 0.5 | -- | 138.5 | 3 | -- |
| 2001-02-26 | -- | -- | 8.1 | 8.1 | -- | -- | -- | -- | -- | 206 | 0 | 0.3 | -- | 0.07 | -- | 0.5 | -- | 111 | 10 | -- |
| 2001-03-19 | -- | -- | 7.8 | 8 | -- | -- | -- | -- | -- | 192 | 0 | 0.518 | -- | 0.081 | -- | 0.5 | -- | 105 | 24 | -- |
| 2001-04-25 | -- | -- | 8 | 8.3 | -- | -- | -- | -- | -- | 196 | 0 | 0.427 | -- | 0.083 | -- | 0.5 | -- | 90.4 | 8 | -- |
| 2001-05-21 | -- | -- | 7.8 | 7.9 | -- | -- | -- | -- | -- | 214 | 0 | 2.12 | -- | 0.352 | -- | 0.704 | -- | 121.4 | 20 | -- |
| 2001-06-14 | -- | -- | 7.8 | 8 | -- | -- | -- | -- | -- | 214 | 0 | 1.96 | -- | 0.219 | -- | 1.27 | -- | 82.1 | 38 | -- |
| 2001-07-26 | -- | -- | 8 | 7.8 | -- | -- | -- | -- | -- | 186 | 0 | 1.02 | -- | 0.268 | -- | 0.514 | -- | 116.5 | 18 | -- |
| 2001-08-27 | -- | -- | 7.8 | 7.6 | -- | -- | -- | -- | -- | 216 | 0 | 1.23 | -- | 0.522 | -- | 0.5 | -- | 281 | 22 | -- |
| 2020-05-20 | -- | -- | 7.06 | -- | -- | -- | 16.7 | -- | 164 | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Minimum: | -- | -- | 7.06 | 7.3 | -- | -- | 16.7 | -- | 164 | 144 | 0 | 0.3 | -- | 0.07 | -- | 0.5 | -- | 50 | 3 | -- |
| Maximum: | -- | -- | 8.1 | 8.3 | -- | -- | 16.7 | -- | 164 | 244 | 0 | 2.16 | -- | 0.522 | -- | 1.27 | -- | 281 | 38 | -- |
| Average: | -- | -- | 7.78 | 7.87 | -- | -- | 16.7 | -- | 164.00 | 208 | 0 | 0.84 | -- | 0.17 | -- | 0.60 | -- | 111.9 | 10.3 | -- |
| Range: | -- | -- | 1.04 | 1 | -- | -- | 0 | -- | 0 | 100 | 0 | 1.86 | -- | 0.452 | -- | 0.77 | -- | 231 | 35 | -- |
| Median: | -- | -- | 7.8 | 7.9 | -- | -- | 16.7 | -- | 164 | 214 | 0 | 0.52 | -- | 0.14 | -- | 0.5 | -- | 106 | 4 | -- |
| Loading (lb/day): | -- | -- | -- | -- | -- | -- | -- | -- | -- |
Sample Point Description: Burgetts Fork Raccoon Creek downstream of unnamed tributary which L2 flows into.
- 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.