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Full Water Quality Report

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Sample Point - 230-.5

Download Sample Point Report CSV  /  Inflow: Yes / Outflow: No
Date
Source
Method of Flow
Flow - Field (gal/min)
pH - Field (S.U.)
pH - Lab (S.U.)
ORP - Field (mvolts)
Temp - Field (C)
D. O (mg/L) Field
D. O (mg/L) Lab
Cond - Lab (umhos/cm)
Alkalinity - Field (mg/L)
Alkalinity - Lab (mg/L)
Acidity - Lab (mg/L)
T. Fe - Field (mg/L)
Fe+2 - Lab (mg/L)
T. Fe - Lab (mg/L)
D. Fe - Lab (mg/L)
T. Al - Lab (mg/L)
D. Al - Lab (mg/L)
T. Mn - Lab (mg/L)
D. Mn - Lab (mg/L)
Sulfate (Mg/L) Lab
TSS - Lab (mg/L)
Ca (Total) (mg/L) Lab
Ca (Dissolved) (mg/L) Lab
Chloride (Total) (mg/L) Lab
Mg (Total) (mg/L) Lab
Mg DO (mg/L) Lab
T. PO4 (mg/L)
D. PO4 (mg/L)
K (mg/L) Lab
Full - Na (mg/L) Lab
Zn (mg/L) Lab
D. O Zn (mg/L) Lab
Sampler Person
Sampler Company
Sampler Lab
Comments
1996-12-03SIS------3.5--------430--056----0.968--2.97--4.47--156225--118.6------1.261.310.219----------
1996-12-30SIS------3.7--------475--072----1.18--3.68--5.68--122231.5--123.1------1.731.890.218----------
1997-01-03SIS------3.6--------504--022----1.24--3.61--5.92--174228.6--223.3------1.211.530.211----------
1997-06-25SIS------3.4--------642--0102----1.43--5.93--8.76--205237.8--229.2------1.411.930.277----------
1997-07-07SIS------3.4--------680--0114----1.36--6.33--9.27--221638.7--230.3------1.42.070.284----------
1997-07-17SIS------3.3--------706--0106----1.45--6.56--9.84--218642.3--234.6------1.581.90.306----------
1997-07-31SIS--62--3.3--------707--0112----1.37--6.78--10--294239.3--231.9------1.781.830.306----------
1997-08-05SIS----------------------------1.41--7.15--10.4--------------------1.611.650.314----------
1997-10-09SIS--26--3.3--------806--0148----3.29--9.21--13.1--3644847--140.4------1.761.750.365----------
1997-10-17SIS--19--3.4--------791--0124----1.77--8.37--11.7--283246.5--234.9------1.832.080.364----------
1997-11-18SIS--133--3.7--------550--072----1.57--5.3--6.48--1587229.3--121------1.441.380.216----------
1997-12-09SIS------3.4--------597--084----2.03--5.89--6.58--1532827.2--120.5------1.271.810.313----------
1998-03-02SIS------3.5--------490--068----1.56--4.27--5.16--57825.5--217.2------1.451.630.198----------
1998-05-04SIS------3.4--------475--056----1.25--3.97--5.11--140226.6--219------1.171.770.196----------
1999-04-07SIS------3.4--------523--062----1.32--4--3.74--156223--217.4------1.111.520.174----------
2000-03-08SIS----43.4--------596--070----1.66--5.82--4.9--1661227.4--118.1------11.660.229----------
2000-06-19SIS----43.4--------599--0112----1.82--6.34--7.07--163634.1--227.4------1.162.210.287----------
2000-07-17SIS----43.4--------663--080----1.38--5.59--6.46--170430.6--223.1------1.292.230.283----------
2004-06-10SIS--2753.63.3------------083----0.985--4.76--4.58--182.68------------------------------
2004-09-09SIS--30043.3------------089.8----1.3--5.7--5.57--216.13------------------------------
2005-04-26SIS--25043.4------------053----0.825--3.64--3.61--208.33------------------------------
2005-10-12SIS------3.3------------0118----1.45--9.06--8.45--273.73------------------------------
2006-03-28SIS--17543.3------------072.6----1.11--5.31--4.69--197.93------------------------------
2006-08-29SIS--200--3.3------------074.6----0.761--5.16--3.98--227.53------------------------------
2009-08-31Import--1784.003.34--------504--069.60----1.36--6.51--3.68--182.46----------------------DGW------
2010-03-16Import--2484.53.49--------406--046.26----0.76--3.59--2.56--147.013----------------------DW------
2010-09-14Import--1004.03.30--------606--ND74.25----0.90--9.44--6.08--249.04----------------------C. LANGS------
2011-09-19Import----43.59--------503--ND49.55----0.99--4.97--5.32--224.65----------------------D. WALBRIDGE------
2012-04-02Import--2153.53.39--9----435--ND56.32----1--4.47--3.6--178.5<5----------------------WCB----497650
2012-09-10Import--1003.23.54--------559--ND61.6----1.19--7.67--6.04--222.35----------------------D. WALBRIDGE------
2013-03-19Import--25043.54--------418--049.09----0.83--4.9--3.22--1325----------------------D. WALBRIDGE------
2013-09-30Import--1004.03.40--------658--ND73.40----1.14--10.34--5.34--222.8<5----------------------DW------
2014-04-07Import--3753.53.43--------482--ND50.10----1.10--3.73--2.74--144.8<5----------------------C. LANGS------
2014-11-10Import--1103.53.28--------719--ND87.52----0.88--9.83--6.01--243.3<5----------------------DENNIS WALBRIDGE------
2015-05-05Import--3003.53.29--9----475--056.83----0.99--5.17--2.36--125.9<5------------------------------
2015-10-28Import----33.32--------639--ND84.58----1.05--8.47--4.8--233.2<5----------------------CLAIR LANGS------
2016-03-22Import--3503.113.33--------453--ND48.51----0.47--4.8--2.65--119.212----------------------WCB------
2016-09-13Import--7543.3--------654--ND78.98----1.15--8--5.64--250.48----------------------DGW------
2017-03-21Import----53.21--------455--ND50.45----0.86--5.18--2.69--127.2<5----------------------DGW------
2017-09-25Import--10043.28--------677--ND77.2----1.43--10.43--6.44--23339----------------------DW------
2018-04-02Import--2483.13.08--9.0----514--052.54----0.90--5.12--2.50--152.9<5----------------------WB------
2018-09-24Import--3504.53.48--------350--ND37.61----0.70--2.62--2.36--150.1<5----------------------DW------
2019-03-25Import--2003.03.55--------376--ND35.22----0.67--2.87--2.41--140.4<5----------------------DW------
2019-09-17Import----3.53.40--------482--ND52.12----1.27--4.09--3.63--200.632----------------------DW------
2020-06-01--assumed3103.03.65--10.0----353--ND40.39----0.50--2.72--2.16--133.0<5--------------------------G&C--
2023-04-11--Assumed35033.47--9.5----388--<0.1069.2----0.51--2.38--2.17--125.3<5------------------------------
2023-09-06----704.53.55------------<0.1071.34----0.43--6.01--3.48--246.5<5------------------------------
2024-09-24Import----43.67--------336--<0.1048.75----0.52--0.88--1.95--115.5<5------------------------------
Minimum:001933.08--9----336--0.0022----0.43--0.88--1.95--57223--117.2------11.310.174--0--0497650
Maximum:0037553.7--10.0----806--0.00148----3.29--10.43--13.1--3647247--240.4------1.832.230.365--0--0497650
Average:001953.773.41--9.3----542--071.8----1.17--5.62--5.32--187.410.932.96--1.6525.29------1.411.790.26--0--0497,650.00
Range:0035620.62--1----470--0126----2.86--9.55--11.15--3077024--123.2------0.830.920.191--0--00
Median:0020043.4--9----509--070----1.15--5.24--5.01--178.5530.6--223.1------1.411.790.28--0--0497650
Loading (lb/day):----143.212.13--11.42--8.63--

Sample Point Description: AMD. Untreated mine discharge is influent to the Arnot #2 Discharge #4 passive system. Sampled at end of pipe as it enters SAPS

  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 - 230-.5B1

Download Sample Point Report CSV  /  Inflow: No / Outflow: No
Date
Source
Method of Flow
Flow - Field (gal/min)
pH - Field (S.U.)
pH - Lab (S.U.)
ORP - Field (mvolts)
Temp - Field (C)
D. O (mg/L) Field
D. O (mg/L) Lab
Cond - Lab (umhos/cm)
Alkalinity - Field (mg/L)
Alkalinity - Lab (mg/L)
Acidity - Lab (mg/L)
T. Fe - Field (mg/L)
Fe+2 - Lab (mg/L)
T. Fe - Lab (mg/L)
D. Fe - Lab (mg/L)
T. Al - Lab (mg/L)
D. Al - Lab (mg/L)
T. Mn - Lab (mg/L)
D. Mn - Lab (mg/L)
Sulfate (Mg/L) Lab
TSS - Lab (mg/L)
Ca (Total) (mg/L) Lab
Ca (Dissolved) (mg/L) Lab
Chloride (Total) (mg/L) Lab
Mg (Total) (mg/L) Lab
Mg DO (mg/L) Lab
T. PO4 (mg/L)
D. PO4 (mg/L)
K (mg/L) Lab
Full - Na (mg/L) Lab
Zn (mg/L) Lab
D. O Zn (mg/L) Lab
Sampler Person
Sampler Company
Sampler Lab
Comments
2006-02-21SIS--2006.75.9------------16.635.4----0.3--2.7--3.51--162.48------------------------------
2006-08-29SIS--756.57------------86.8-68.2----0.951--1.62--3.02--2204------------------------------
2009-08-31Import--1785.505.81--------462--22.91-11.00----1.31--1.46--3.80--176.811----------------------DGW------
2010-03-16Import--2485.05.72--------396--16.377.64----0.68--2.98--2.75--177.527----------------------WB------
2010-09-14Import--1005.55.80--------544--27.613.17----1.06--4.73--5.92--242.315----------------------C. LANGS------
2011-09-19Import----6.56.73--------577--60.96-30.05----0.64--2.35--3.21--213.428----------------------D. WALBRIDGE------
2012-04-02Import--39566.29--9----392--37.67-4.58----0.45--1.56--2.6--154.711----------------------WCB----497632
2012-09-10Import--100--6.67--------664--88.2-55.6----0.45--2.54--3.12--244.17----------------------D. WALBRIDGE------
2013-03-19Import--17565.96--------340--16.167.68----0.82--6.23--2.47--134.140----------------------D. WALBRIDGE------
2013-09-30Import--1006.06.82--------627--60.84-56.00----2.76--12.39--2.97--214.023----------------------DW------
2014-04-07Import--2106.06.62--------419--26.73-3.03----0.64--2.31--1.64--165.57----------------------C. LANGS------
2014-11-10Import--11054.63--------606--232.44----0.77--7.67--6.53--262.59----------------------DENNIS WALBRIDGE------
2015-05-05Import--18366.26--11----403--34.25-3.01----0.45--2.34--1.51--125.913----------------------CL------
2015-10-28Import----66.07--------554--26.76-10.55----0.72--5.97--3.93--225.815----------------------DENNIS WALBRIDGE------
2016-03-22Import--1105.856.99--------387--29.69-21.58----0.33--2.59--2--142.914----------------------WCB------
2016-09-13Import--755.56.41--------544--31.81-21.21----1.23--6.17--5.06--216.832----------------------DGW------
2017-03-21Import----5.54.68--------353--1.19.05----0.71--5.14--2.3--140.312----------------------DGW------
2017-09-25Import--10065.92--------603--25.85-16.2----0.81--10.25--5.68--25219----------------------DW------
2018-04-02Import--828.06.85--9.0----514--76.46-71.44----0.30--1.87--1.12--145.26----------------------WB------
2018-09-24Import--1206.05.71--------330--12.21-3.78----0.32--1.60--1.97--122.8<5----------------------DW------
2019-03-25Import--2005.54.62--------334--3.1813.74----0.62--2.98--1.96--129.817----------------------DW------
2019-09-17Import----6.56.61--------553--93.62-83.02----0.39--2.13--2.13--207.813----------------------DW------
2020-06-01--estimate135.007.06.78--11.0----464--111.71-66.78----0.14--0.18--0.41--138.2<5--------------------------G&C--
2021-03-29------5.04.17------------ND30.35----0.70------2.24--125.537------------------------------
2021-03-29------5.04.17------------ND30.35----0.70------2.24--125.537------------------------------
2023-04-11------75.67--8.7----320--9.2612.74----0.14--0.51--1.33--123.417------------------------------
2023-09-06----707.16.54------------110.63-93.49----<0.10--0.73--1.44--233.4<5------------------------------
2024-09-24Import----55.84--------280--41.92-36.21----0.31--<0.10--1.57--112.97------------------------------
Minimum:00705.04.17--8.7----280--1.1-93.49----0.14--0.18--0.41--112.94----------------------0--0497632
Maximum:003958.07--11----664--111.7135.4----2.76--12.39--6.53--262.540----------------------0--0497632
Average:001485.995.97--9.7----464--38-16.9----0.69--3.64--2.80--176.317.2----------------------0--0497,632.00
Range:0032532.83--2.3----384--110.61128.89----2.62--12.21--6.12--149.636----------------------0--00
Median:0011566.02--9----462--30.75-7.57----0.64--2.54--2.39--163.9514----------------------0--0497632
Loading (lb/day):--63.03-19.071.26--5.94--5.01--

Sample Point Description: SAPS effluent. Influent to limestone ramp. Sampled at pipe from SAPS.

  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 - 230-.5B2

Download Sample Point Report CSV  /  Inflow: No / Outflow: Yes
Date
Source
Method of Flow
Flow - Field (gal/min)
pH - Field (S.U.)
pH - Lab (S.U.)
ORP - Field (mvolts)
Temp - Field (C)
D. O (mg/L) Field
D. O (mg/L) Lab
Cond - Lab (umhos/cm)
Alkalinity - Field (mg/L)
Alkalinity - Lab (mg/L)
Acidity - Lab (mg/L)
T. Fe - Field (mg/L)
Fe+2 - Lab (mg/L)
T. Fe - Lab (mg/L)
D. Fe - Lab (mg/L)
T. Al - Lab (mg/L)
D. Al - Lab (mg/L)
T. Mn - Lab (mg/L)
D. Mn - Lab (mg/L)
Sulfate (Mg/L) Lab
TSS - Lab (mg/L)
Ca (Total) (mg/L) Lab
Ca (Dissolved) (mg/L) Lab
Chloride (Total) (mg/L) Lab
Mg (Total) (mg/L) Lab
Mg DO (mg/L) Lab
T. PO4 (mg/L)
D. PO4 (mg/L)
K (mg/L) Lab
Full - Na (mg/L) Lab
Zn (mg/L) Lab
D. O Zn (mg/L) Lab
Sampler Person
Sampler Company
Sampler Lab
Comments
2009-08-31Import--1786.506.53--------585--98.03-74.60----0.04--0.35--0.58--194.86----------------------DGW------
2010-03-16Import--2486.56.98--------434--43.63-29.79----0.09--0.77--1.06--162.421----------------------WB------
2010-09-14Import--1006.56.98--------658--93.34-82.57----<0.04--<0.04--0.18--227.98----------------------C. LANGS------
2011-09-19Import--19076.92--------622--86.68-70.05----0.04--0.17--0.64--225.85----------------------D. WALBRIDGE------
2012-04-02Import----66.61--8----420--32.6-17.91----0.06--0.55--1.35--150.5<5----------------------WCB----497631
2012-09-10Import--10077.18--------722--136.03-115.4----0.05--<0.04--0.15--2435----------------------D. WALBRIDGE------
2013-03-19Import--17576.75--------408--33.91-21.41----0.11--0.78--0.82--135.55----------------------D. WALBRIDGE------
2013-09-30Import--1007.07.28--------704--110.24-102.40----<0.10--0.36--<0.05--205.7<5----------------------DW------
2014-04-07Import--3007.07.11--------193--56.14-34.14----<0.10--0.17--0.37--144.8<5----------------------C. LANGS------
2014-11-10Import--1106.57.37--------726--84.38-67.32----<0.10--0.28--0.17--252.9<5----------------------DENNIS WALBRIDGE------
2015-05-05Import--30066.47--12----428--38.81-22.89----0.17--1.18--0.91--125.97----------------------DW------
2015-10-28Import--1256.56.52--------588--50.79-19.5----0.1--1.79--1.73--218.4<5----------------------CLAIR LANGS------
2016-03-22Import--3505.54.68--------342--2.638.91----0.33--3.23--2.04--142.99----------------------WCB------
2016-09-13Import--756.57.34--------749--130.73-125.04----<0.10--<0.10--<0.05--242<5----------------------DGW------
2017-03-21Import----65.12--------360--1.846.43----2--7.83--3.1--158.312----------------------DGW------
2017-09-25Import--10077.19--------748--118.43-110.4----0.1--3.32--4.38--248.2<5----------------------DW------
2018-04-02Import--2487.06.83--------460--41.83-29.65----0.19--1.58--0.86--146.5<5----------------------WB------
2018-09-24Import--2206.56.51--------380--40.80-31.24----0.26--0.76--1.48--111.6<5----------------------DW------
2019-09-17Import----7.06.87--------565--96.36-91.91----<0.10--0.36--1.00--221.15----------------------DW------
2020-06-01--measured3106.57.02--11.0----410--77.84-64.62----<0.10--0.28--0.47--138.7<5--------------------------G&C--
2021-03-29------6.56.96------------40.96-35.78----0.15------1.02--115.0<5------------------------------
2021-03-29------6.56.96------------40.96-35.78----0.15------1.02--115.0<5------------------------------
2023-04-11--Measured3506.56.45--9.4----354--30.18-3.13----0.42--3.8--1.55--122<5------------------------------
2023-09-06----707.86.97------------105.57-92.12----<0.10--0.45--2.49--234.2<5------------------------------
2024-09-24Import----66.83--------335--73.07-45.96----0.11--<0.10--1.01--116<5------------------------------
Minimum:00705.54.68--8----193--1.84-125.04----0.04--0.17--0.15--111.65----------------------0--0497631
Maximum:003507.87.37--12----749--136.038.91----2--7.83--4.38--252.921----------------------0--0497631
Average:001926.596.74--10.1----509--67-52.3----0.26--1.47--1.23--176.08.3----------------------0--0497,631.00
Range:002802.32.69--4----556--134.19133.95----1.96--7.66--4.23--141.316----------------------0--00
Median:001786.56.92--10.2----447--56.14-35.78----0.11--0.76--1.01--158.36.5----------------------0--0497631
Loading (lb/day):--134.59-97.310.5--3.45--2.71--

Sample Point Description: Final Effluent of Arnot #2 Discharge #4 passive system. Effluent of limestone ramp. Sampled at end of discharge pipe.

  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 - 0.5B

Download Sample Point Report CSV  /  Inflow: No / Outflow: No
Date
Source
Method of Flow
Flow - Field (gal/min)
pH - Field (S.U.)
pH - Lab (S.U.)
ORP - Field (mvolts)
Temp - Field (C)
D. O (mg/L) Field
D. O (mg/L) Lab
Cond - Lab (umhos/cm)
Alkalinity - Field (mg/L)
Alkalinity - Lab (mg/L)
Acidity - Lab (mg/L)
T. Fe - Field (mg/L)
Fe+2 - Lab (mg/L)
T. Fe - Lab (mg/L)
D. Fe - Lab (mg/L)
T. Al - Lab (mg/L)
D. Al - Lab (mg/L)
T. Mn - Lab (mg/L)
D. Mn - Lab (mg/L)
Sulfate (Mg/L) Lab
TSS - Lab (mg/L)
Ca (Total) (mg/L) Lab
Ca (Dissolved) (mg/L) Lab
Chloride (Total) (mg/L) Lab
Mg (Total) (mg/L) Lab
Mg DO (mg/L) Lab
T. PO4 (mg/L)
D. PO4 (mg/L)
K (mg/L) Lab
Full - Na (mg/L) Lab
Zn (mg/L) Lab
D. O Zn (mg/L) Lab
Sampler Person
Sampler Company
Sampler Lab
Comments
1996-12-30SIS------6.6--------560--1120----0.122--0.319--4.19--205291.4--324.1------2.083.540.086----------
1997-01-03SIS------6.8--------549--1120----0.067--0.25--3.91--161288--321.5------1.482.620.082----------
1997-06-25SIS------6.8--------728--1640----0.86--0.135--6.21--2188126--228.7------1.372.330.01----------
1997-07-07SIS------6.8--------751--1720----1.14--0.135--6.1--29114125--229.2------1.432.380.01----------
1997-07-17SIS--97.4--6.8--------785--1840----1.2--0.2--5.82--2506140--233.8------1.442.20.015----------
1997-07-31SIS--62--6.8--------802--1900----0.796--0.2--4.79--3622124--229.9------1.442.280.013----------
1997-08-05SIS--43.5--6.8--------812--1920----0.667--0.2--4.95--2094139--333.3------1.462.650.01----------
1997-10-09SIS--26--7.1--------876--1560----0.702--0.2--4.83--3926130--238.9------1.582.240.01----------
1997-10-17SIS--19--7--------903--1660----0.742--0.2--4.63--4878143--236.4------1.762.650.01----------
1997-11-18SIS--133--6.8--------737--1240----0.057--0.2--2.46--3222101--126.4------1.421.590.062----------
1997-12-09SIS------6.7--------651--1220----0.023--0.2--1.58--3012085.1--121------1.351.930.094----------
1998-03-02SIS--288--6.9--------553--1180----0.031--0.2--0.092--1272488.4--217.2------1.171.640.022----------
1998-05-04SIS--104--7.1--------580--1440----0.02--0.2--0.01--1832106--219.5------1.031.960.01----------
1999-04-07SIS--75--7.2--------611--1340----0.02--0.2--0.027--2006101--220.1------1.171.880.01----------
2000-03-08SIS----76.9--------594--1000----0.051--0.26--0.316--197694--118.9------1.31.750.035----------
2004-06-10SIS--2757.17------------118.2-88.6----0.3--0.5--0.758--226.66------------------------------
2004-09-09SIS--2506.37.2------------56.4-27.4----0.3--0.5--0.499--162.23------------------------------
2005-04-26SIS--20077.4------------60.8-34.2----0.3--0.5--0.683--211.43------------------------------
2005-10-12SIS------7.1------------140-85.2----0.3--0.5--9.7--293.23------------------------------
2006-02-21SIS--2006.86.9------------79.8-39----0.658--0.5--5.32--186.83------------------------------
2006-08-29SIS--12577.5------------157.2-58.2----0.858--0.5--3.92--216.73------------------------------
Minimum:0--196.36.6--------549--56.4-88.6----0.02--0.135--0.01--127285.1--117.2------1.031.590.01----------
Maximum:0--2887.17.5--------903--1920----1.2--0.5--9.7--48724143--338.9------2.083.540.094----------
Average:0--1366.876.96--------699--133-15.8----0.44--0.29--3.37--247.76.3112.13--2.0026.59------1.432.240.03----------
Range:0--2690.80.9--------354--135.688.6----1.18--0.365--9.69--3602257.9--221.7------1.051.950.084----------
Median:0--114.576.9--------728--1340----0.3--0.2--3.92--216.74106--226.4------1.432.240.01----------
Loading (lb/day):--184.71-127.720.6--0.6--3.15--

Sample Point Description: ALD EFFLUENT before conversion to limestone ramp in 2008 at which point this point was discarded.

  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.