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Standard Water Quality Report

Download Raw Water Quality Data CSV

Sample Point - DLR2

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
2001-02-26----3.63.6----------013630.9--7.66--6.92--345.76--
2001-08-22----3.93----------016839.3--11.1--12.7--7006--
2001-11-29--363.73.1----------0173.645.8--11.2--10.8--467.516--
2001-12-11----6.46.3----------166039.4--10.7--1.44--66222--
2001-12-17--37.54.23.4----------0217.452.8--11.9--11--556.810--
2002-01-11----3.83.4----------0179.443.6--10.4--9.49--478.318--
2002-02-21--433.33.4----------0217.653.4--11.2--10.2--449.23--
2002-03-08------3.6----------0217.248.3--10.1--8.93--444.110--
2002-04-17----3.73.6----------0157.639.9--8.48--7.59--371.53--
2002-05-20--2733.63.6----------0130.616.8--6.41--6.06--20010--
2002-07-24--1203.73.3----------0125.624.8--9.64--10--390.33--
2002-08-25--543.63.3----------0183.632.7--11.3--12.8--563.78--
2002-10-01--443.73.3----------021844.7--15.3--16.5--604.98--
2002-12-27--433.83.5----------0206.247--11--12.4--444.84--
2003-01-15--763.53.4----------013015.2--5.4--5.41--431.66--
2003-03-12--553.53.4----------013818.1--8.4--8.85--4583--
2003-07-08--753--------------20.63.66--4.05--3.88--272.63--
2003-12-29----3.33.5----------094.29.16--6.79--6.39--417.336--
2004-04-09--216--3.3----------092.45.81--6.26--6.51--420.9----
2004-05-11----2.93.5----------079.46.02--5.62--5.68--293.76--
2004-06-21--67.53.393.5----------087.611.3--6.41--6.03--425.73--
2004-07-20--573.293.4----------012522.1--8.69--8.73--434.414--
2004-08-18--51.43.273.5----------0166.231.8--10.1--10.5--563.93--
2004-11-15----3.23.7----------0105.225.2--7.2--6.93--390.510--
2004-12-08----3.13.7----------0122.624.6--7.54--7.53--447.94--
2005-01-19----3.23.5----------0998.05--6.68--6.47--402.53--
2005-02-15--1083.13.4----------0857.67--5.95--5.65--354.13--
2005-03-17----93.5----------089.27.67--7.01--6.35--470.73--
2005-04-11----3.673.4----------0107.47.24--6.46--6.33--404.410--
2005-05-26----3.93.7----------082.212.7--5.41--4.54--279.43--
2005-06-15----4----------------------------------
2005-07-07------3.2----------0140.616.7--8.74--8.21--563.36--
2005-08-14--4043.6----------0174.837--9.67--10.8--690.216--
2005-10-18--303.813.6----------0175.638.2--9.06--9.37--613.33--
2006-02-15------3.5----------093.88.17--6.45--6.06--405.54--
2006-03-22----3.73.5----------079.48.85--5.82--5.13--285.14--
2006-05-11--723.813.5----------0105.622.7--8.447--8.22--479.33--
2006-06-27----3.553.3----------0123.223.9--8.05--8.53--471.43--
2006-11-13----3.53.2----------0185.251.1--9.688--11.4--654.71649.93
2006-12-06----3.73.8----------018238.5--8.49--8.46--546.23--
2007-01-17------3.3----------0131.838--8.54--8.31--520.63--
2007-03-06------3.4----------0104.625--6.76--6--401.71420.26
2007-04-25----3.53.4----------093.68.63--6.42--6.81--431.2102.7
2007-06-13----3.73.7----------081.415.4--5.6--5.18--412.1315.09
2007-07-26--27--3.6----------013133.1--9.326--9.279--508.3227.23
2009-03-10------3.5----------071.88.59--5.987--5.61--326.752.58
2009-07-08------3.3----------0112.425.052--8.199--8.445--474.66--
2009-09-30----3.913.8----------019144.8--10.5--11.4--642.6651.22
2010-04-20----3.763.4----------085.811.796--7.013--7.032--425.866.64
2012-11-20--12043.44----9.998900120.9940--8.54--10.08--519.10--
2013-08-01------5.6----------24.669.246.869--4.003--1.461--453.6643.7
2013-10-03------3.8----------013633.305--8.218--10.127--526.8538.53
2015-11-05--503.523.13--0.811.4136600139.9033.2431.7111.4311.3312.7510.79642.822--
2016-10-30----3.143.4----------0161.236.508--8.78--10.957--326.61630.208
2017-01-24----3.813.5----------089.411.6--4.467--5.286--314.1126.663
2017-04-27----6.086.3----------198.8-180.40.952--2.489--0.921--380.850.74
2017-07-26----3.563.5----------071.45.568--5.102--6.219--344.952.01
2017-10-19----3.643.5----------0163.228.819--9.077--11.788--672.8627.562
2018-01-21----6.323.5----------012922.93--6.363--8.262--420.6520.472
2018-05-10----3.543.4----11.3----068.84.232--5.228--6.742--314.550.689
2018-07-26----6.913.5----13.4----064.83.813--4.388--5.050--375.651.090
2018-10-31----7.13.5----11.1----065.63.082--4.578--5.614--303.450.654
2020-01-28----3.43.4----7.9----076.65.438--4.968--5.161--301.5102.061
2020-09-24----3.83.2----13.4----0120.221.778--7.520--7.714--437.31019.566
2020-11-04----3.93.6----11.1----0134.228.399--7.310--8.080--491.51228.981
2021-11-04----3.923.6----10.3----076.410.280--4.703--4.694--258.5208.588
2022-10-17----4.923.8----------0156.236.717--8.701--9.376--511.82037.502
2024-02-08----3.63.7----------052.40.634--4.940--5.157--332.6200.368
2024-02-08----3.63.7----------052.40.634--4.940--5.157--332.6200.368
2024-05-30----3.43.6----------0966.107--7.423--8.526--428205.249
2024-05-30----3.43.6----------0966.107--7.423--8.526--428205.249
2024-09-09----3.724----------1.412130.078--7.404--6.437--412.82028.477
2024-09-09----3.724----------1.412130.078--7.404--6.437--412.82028.477
2025-05-20------3.57------833 --< 10 59 1.07 --4.83 --5.6 --343 6 --
Minimum:--272.93--0.87.9833 00-180.40.63431.712.48911.330.92110.7920000.368
Maximum:--27396.3--0.813.413660198.821853.431.7115.311.3316.510.797003651.22
Average:--773.943.60--0.8011.11,06306116.223.0131.717.6311.337.7110.79442.39.017.10
Range:--2466.13.3--05.55330198.8398.452.766012.811015.57905003650.852
Median:--54.53.73.5--0.811.198900120.9922.9331.717.4211.337.5310.79428611.84
Loading (lb/day):----118.8421.3219.067.56.817.76.48

Sample Point Description: Abandoned Mine Discharge; Raw untreated AMD influent to Reitz #1 passive system; Might also be known as USGS-15

  1. Records with no value are not included in statistical calculations.
  2. Values lower than the minimum detection limit are assumed to be 0.
  3. Average pH is calculated using the arithmetic mean of pH values. Hydronium ion concentrations were not used.
  4. 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 - BOX/STR

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
2006-11-13--27.36.576.7----------285.8-19220.9--5.733--0.244--623.730--
2007-03-06------6.7----------123-82.41.64--6.25--1.55--40816--
2007-06-13----6.56.6----------182.4-73.422.2--5.02--0.5--411.224--
2007-07-26------6.6----------177.4-34.87.971--9.106--0.275--511.22--
2009-09-30----6.156.1----------62.6-2.415.3--10.1--8.3--6223816.94
2010-01-24------5.8----------31.25.46.067--7.738--6.06--537.624--
2010-04-20----4.985.2----------11.418.43.039--7.37--6.698--395121.88
2010-12-22----4.14.6----------1065.212.184--9.432--18.107--584.35--
2011-03-28----5.74.7----------10.635.22.497--5.536--5.555--385.516--
2011-06-07----5.285.9----------81.6-54.64.929--4.966--3.092--41712--
2011-07-28----6.176.3----------149.2-106.211.172--7.534--2.968--526.140--
2011-08-31------6.1----------127.2-8011.924--9.011--5.154--58328--
2011-09-27----5.66.1----------75.2-45.65.668--6.719--0.808--3755--
2011-12-15----5.85.9----------51.6-37.41.079--6.277--4.68--407.416--
2012-05-16----5.26----------82.8-51.68.129--7.265--4.881--384.718--
2012-07-25----66.1----------85.6-2324.328--8.727--5.449--507.524--
2013-04-23----6.27.1----------180.8-175.84.683--6.032--1.383--405.68--
2013-07-02----5.86.6----------217-172.416.853--6.693--0.882--396.714--
2013-10-03------6.6----------205.6-86.626.189--8.056--1.744--606.51029.11
2015-07-29----6.146.5----------174-92.85.119--5.188--1.616--331.512--
2016-02-29----6.46.9----------161-1351.287--3.297--0.976--365.224--
Minimum:--27.34.14.6----------10-1921.079--3.297--0.244--331.521.88
Maximum:--27.36.577.1----------285.865.226.189--10.1--18.107--623.74029.11
Average:--275.796.15----------118-62.910.15--6.95--3.85--465.918.015.98
Range:--02.472.5----------275.8257.225.11--6.803--17.863--292.23827.23
Median:--27.35.96.1----------123-54.67.97--6.72--2.97--411.21616.94
Loading (lb/day):--93.78-636.86--1.88--0.08--

Sample Point Description: VFP OUTLET BOX BY STREAM

  1. Records with no value are not included in statistical calculations.
  2. Values lower than the minimum detection limit are assumed to be 0.
  3. Average pH is calculated using the arithmetic mean of pH values. Hydronium ion concentrations were not used.
  4. 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 - BOX/WOOD

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
2006-11-13--3.56.546.7----------300-236.619.6--5.916--0.402--679.276--
2006-12-06----6.36.8----------144.2-54.24.75--7.56--0.5--532.318--
2007-03-06------6.8----------140.2-1101.82--6.12--1.12--378.712--
2007-06-13----6.66.7----------202.4-129.214.1--4.8--0.5--278.912--
2007-07-26------6.7----------228.4-996.589--9.616--0.46--499.44--
2009-03-10----5.86.4----------44.4-220.62.98--6.03--3.511--335.5122.68
2009-07-08------6.4----------149-117.413.969--7.856--3.008--450.334--
2010-01-24------6----------43.2-3.84.928--7.8--5.694--556.118--
2010-07-23----7.76.5----------102.2-51.814.94--6.813--2.516--356.55--
2010-08-20----5.845.9----------61.4-18.412.418--9.784--7.378--541.120--
2011-12-15----5.45.6----------28.8-70.737--6.185--5.407--378.218--
2012-05-16----4.85.6----------40.8-7.67.094--7.067--5.799--37118--
2012-07-25----5.55.8----------61.42.619.365--8.448--6.181--50130--
2013-04-23----6.57----------219.2-231.28.127--6.89--0.5--319.412--
2013-07-02----6.36.7----------249.4-199.421.513--6.463--0.5--38620--
2013-10-03------6.8----------235.8-125.228.118--8.27--0.827--636.4834.21
2015-07-29----6.316.7----------209.2-87.88.058--5.549--0.83--358.68--
2016-02-29----6.86.9----------158.6-132.81.142--3.223--0.642--36726--
2016-10-30----5.786.7----------146.8-103.25.545--6.945--1.582--716.8145.282
2017-01-24----6.826.7----------153.6-135.20.992--3.303--0.808--494.9140.741
2017-04-27----3.393.5----------062.83.625--4.419--5.652--324.850.793
2017-07-26----6.236.7----------227.4-202.63.234--4.449--0.628--374.152.814
2017-10-19----6.436.7----------147-1095.498--6.99--2.902--647.9200.414
2018-01-21------6.4----------141-1160.758--3.626--2.124--419.250.544
2018-05-10----6.056.6----13.2----138.2-106.80.732--3.561--2.398--357.880.578
2018-07-26----4.956.6----16----160.4-144.40.520--3.391--1.428--316.360.401
2018-10-31----6.76.3----12----109.8-94.40.606--1.942--3.234--330.980.178
2020-01-28----6.076.4----5.6----113.8-89.80.661--1.588--1.386--299.9160.333
2020-09-24----5.96.6----13.9----166.4-146.27.176--11.368--2.110--446.6147.353
2020-11-04----6.16.6----10.9----147.4-124.22.855--8.364--1.518--455.6202.795
2021-11-04----6.296.9----9.2----148.4-129.41.472--2.516--0.509--298201.469
2022-10-17----7.726.6----------133-91.43.205--7.688--2.741--516.7202.308
2024-02-08----6.096.5----------160.8-136.60.300--3.965--0.500--331.3200.050
2024-02-08----6.096.5----------160.8-136.60.300--3.965--0.500--331.3200.050
2024-05-30----6.536.4----------300.8-262.61.087--1.992--0.500--418.4200.270
2024-05-30----6.536.4----------300.8-262.61.087--1.992--0.500--418.4200.270
2024-09-09----6.546.5----------206.4-182.45.096--10.920--0.500--394.8204.986
2024-09-09----6.546.5----------206.4-182.45.096--10.920--0.500--394.8204.986
Minimum:--3.53.393.5----5.6----0-262.60.300--1.588--0.402--278.940.050
Maximum:--3.57.727----16----300.862.828.118--11.368--7.378--716.87634.21
Average:--46.166.42----11.5----155-119.06.32--6.01--2.05--426.717.03.34
Range:--04.333.5----10.4----300.8325.427.818--9.78--6.976--437.97234.16
Median:--3.56.36.6----12----148.7-120.84.19--6.15--1.25--390.4180.77
Loading (lb/day):--12.62-9.950.82--0.25--0.02--

Sample Point Description: VFP OUTLET BOX BY WOODS

  1. Records with no value are not included in statistical calculations.
  2. Values lower than the minimum detection limit are assumed to be 0.
  3. Average pH is calculated using the arithmetic mean of pH values. Hydronium ion concentrations were not used.
  4. 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 - WET/BIO

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
2006-11-13----6.536.8----------261-182.421.2--5.63--0.273--6552--
2007-03-06------7.1----------125.2-102.21.35--5.46--0.836--318.38--
2007-04-25----5.76.1----------77.6-56.42.28--6.7--1.95--424.38--
2007-06-13----6.76.6----------172-92.417.8--4.74--0.5--276.538--
2007-07-26------6.8----------223.6-105.62.905--9.472--0.2--5056--
2007-10-23------7.1----------126.4-56.40.3--1.62--0.5--445.13--
2008-12-10----3.783.7----------0138.237.694--8.585--9.38--509.86--
2009-04-28----3.834.6----------8.638.215.803--7.087--7.484--148.940--
Minimum:----3.783.7----------0-182.40.3--1.62--0.2--148.92--
Maximum:----6.77.1----------261138.237.694--9.472--9.38--65540--
Average:----5.316.10----------124-52.412.42--6.16--2.64--410.413.9--
Range:----2.923.4----------261320.637.394--7.852--9.18--506.138--
Median:----5.76.7----------125.8-74.49.35--6.17--0.67--434.77--
Loading (lb/day):------------------

Sample Point Description: OUTLET FROM 2ND POND INTO BIO REACTOR

  1. Records with no value are not included in statistical calculations.
  2. Values lower than the minimum detection limit are assumed to be 0.
  3. Average pH is calculated using the arithmetic mean of pH values. Hydronium ion concentrations were not used.
  4. 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 - BIO/OUT

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
2006-11-13--27.36.46.7----------312.6-18228.1--5.83--0.2--669.510--
2006-12-06----6.46.8----------184.6-102.26.18--7.24--0.5--487.324--
2007-01-17------7.1----------184.6-158.81.39--7.79--0.5--412.56--
2007-03-06--53--7.1----------148.8-127.80.714--5.48--0.305--307.24--
2007-04-25----6.16.6----------147-1261.77--6.56--0.863--442.910--
2007-06-13----6.87----------2537.81.07--5.19--0.5--263.73--
2007-07-26--27--7----------265.8-153.80.835--6.776--0.2--439.22--
2007-10-23------6.9----------191.2-68.81.13--3.93--0.5--431.74--
2008-12-10----5.485.4----------13.8112.526--5.466--2.176--369.65--
2009-04-28----4.513.6----------094.24.943--0.631--3.071--391.212--
2009-07-22----5.96.3----------134-89.618.773--7.992--2.857--518.316--
2009-10-21----5.575.6----------26.619.645.331--10.006--12.063--613.3108--
2010-04-20----5.776.3----------20.20.41.555--6.699--1.5--380.761.35
2012-11-20--1207.26.84------1172168156.63-114.0317.45--7.46--0.53--515.612--
2013-10-03------6.7----------211-114.418.534--8.266--0.5--528.61418.25
2015-11-05--507.107.10--7.7310.21311180151.03-110.643.762.008.357.87<0.10<0.10642.814--
2016-10-30--40.76.377.1----------149.2-1095.064--6.565--0.519--627.5202.609
2017-01-24--91.26.76.2----------39.4-17.22.852--2.686--1.149--350.2161.817
2017-04-27--846.376.3----------100.2-83.21.122--3.067--1.184--342.350.661
2017-07-26--35.46.487----------220.6-199.81.338--4.294--0.5--362.860.553
2017-10-19----7.37.3----------163.2-132.25.162--6.355--0.775--601.5363.048
2018-01-21----7.616.4----------99.6-74.62.93--3.688--2.083--364.252.232
2018-05-10----6.656.8----13.9----122-981.502--3.875--3.037--339.7120.712
2018-07-26----5.946.8----20.1----183.2-162.66.437--2.554--1.219--405.4141.774
2018-10-31----6.996.5----12.1----87.4-68.80.402--1.860--1.427--277.950.177
2020-01-28----4.914.7----6.8----9.232.22.940--3.847--3.774--281.1160.885
2020-09-24----77.4----16----184.4-163.42.364--3.757--0.500--432.962.214
2020-11-04----7.77.2----11----145.6-126.61.866--8.314--0.500--467.4240.311
2021-11-04----9.697.5----5.2----124.6-1011.575--3.142--0.582--278.4200.761
2022-05-23----6.514.7----13.3----1538.41.551--5.703--5.687--377.9200.578
2022-10-17----7.57.5----------140.2-111.21.330--8.706--0.500--515.3200.356
2024-02-08----5.666.5----------121.2-95.40.300--1.608--0.894--295.3200.113
2024-02-08----5.666.5----------121.2-95.40.300--1.608--0.894--295.3200.113
2024-05-30----6.766.4----------199.6-162.21.165--2.368--0.500--422.6200.540
2024-05-30----6.766.4----------199.6-162.21.165--2.368--0.500--422.6200.540
2024-09-09----7.627.5----------182-168.40.491--7.328--0.500--378.8200.150
2024-09-09----7.627.5----------182-168.40.491--7.328--0.500--378.8200.150
2025-05-20------6.66------857 --84 -70 0.40 --3.77 --1.2 --342 < 5 --
Minimum:--274.513.6--7.735.2857 1680-199.80.3002.000.6317.870.2--263.720.113
Maximum:--1209.697.5--7.7320.11311180312.694.245.3312.0010.0067.8712.063--669.510818.25
Average:--596.596.58--7.7312.11,113174.00139-92.55.182.005.227.871.48--420.416.11.73
Range:--935.183.9--014.945412312.629445.03109.375011.863--405.810618.137
Median:--506.586.75--7.7312.11172174147.9-105.61.5725.477.870.58--398.3140.66
Loading (lb/day):175.25101.28-73.694.961.23.834.730.5--

Sample Point Description: Effluent of Bioreactor and Final Effluent of the Reitz #1 passive system

  1. Records with no value are not included in statistical calculations.
  2. Values lower than the minimum detection limit are assumed to be 0.
  3. Average pH is calculated using the arithmetic mean of pH values. Hydronium ion concentrations were not used.
  4. 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.