My WebLink
|
Help
|
About
|
Sign Out
Home
Browse
Search
HYDRO21461
DRMS
>
Back File Migration
>
Hydrology
>
HYDRO21461
Metadata
Thumbnails
Annotations
Entry Properties
Last modified
8/24/2016 8:42:55 PM
Creation date
11/20/2007 2:19:37 PM
Metadata
Fields
Template:
DRMS Permit Index
Permit No
M1977342
IBM Index Class Name
Hydrology
Doc Date
8/4/1993
Doc Name
EVALUATION OF WATER ANALYSIS DATA HENDERSON MILL WATER QUALITY MONITORING
Media Type
D
Archive
No
There are no annotations on this page.
Document management portal powered by Laserfiche WebLink 9 © 1998-2015
Laserfiche.
All rights reserved.
/
18
PDF
Print
Pages to print
Enter page numbers and/or page ranges separated by commas. For example, 1,3,5-12.
After downloading, print the document using a PDF reader (e.g. Adobe Reader).
View images
View plain text
_ SENT BY~ 8- 4-93 :12~42PM ; CANONIE ENGLEWOOD-~ ;# 8/19 <br />` • • <br />3 <br />3.0 IDENTIFY ERRONEOUS DATA POINTS <br />Table 2 identifies data points that may be erroneous. The Identified points were <br />outside the expected ranges determined for each parameter and location, and all <br />points were larger than expected. There was na apparent pattern to the occurrence <br />of these values, which may Indicate analytical errors or actual occurrences. There <br />were two occurrences of larger than expected values for a regulated parameter, as <br />indicated by shading in Table 2. Those occurrences were for iron at HW-4 during the <br />March 1988 and June 1991 sampling events. These two data points were Included <br />in the statistical analysis. <br />Table 3 identifies field pH measurements that may be erroneous and compares them <br />to laboratory pH measurements. Laboratory pH measurements were lower than field <br />measurements for the same samples. The difference in the measurements Indicates <br />that the field measurements were in error, or that the samples changed between the <br />field and laboratory measurements. pH measurements that may be erroneous <br />occurred at outside sampling locations in February, March, November or Derember, <br />Indicating a possible problem with pH meter calibration that is exacerbated 6y cold <br />weather. Two apparently erroneous pH maasuroments from Inside sampling locations <br />also are listed. <br />iwrvnus,nweo..uvr w..,~,..a: <br />
The URL can be used to link to this page
Your browser does not support the video tag.