Worksheet 2 – Report results

Complete the following details:

Name
Name of Instructor

Detail the procedures in place in your laboratory to report results.

Detail the procedures in place in your laboratory to report discrepancies.

Attach some completed forms to this worksheet.


The following information has been included in a lab technician’s logbook. Use the laboratory datasheet to report the results.

Date: 24/07/07

Raw Water Sample ID# 2407ME - RW1

Turb on in-line sensor 0.34 in lab 0.35

pH on sensor 7.61 in lab 7.48

Color in lab 22HU

UV in lab 0.278

Fluoride 0.36

Odor cold was E1 and hot was E3

Prior to storage ID# 2407ME - PS1

Turbidity from meter 0.08 from lab 0.06

pH from meter 7.09 from lab 7.07

fluoride meter 0.84 lab 1.06 **

Free chlorine meter 2.4 lab 2.47

Odor cold Cc2, Hot Cc3

24 hr Composite ID# 2407ME - 24CMon

Monday turb 0.09, Color 2, UV 0.071, fluoride 0.88

24 hr Composite ID# 2407MW - 24CTues

Tuesday turb 0.08, Color 1, UV 0.074, fluoride 0.83

24 hr Composite ID# 2407MW - 24CWed

Wednesday turb 0.08, Color 2, UV 0.076, fluoride 0.83

QA Samples ID# 2407ME - QA1

Turb (Hi) 2.84, Turb (Lo) 0.192

pH 7.20 @ 18.7oC

Color (Hi) 30 Color (Lo) 5

Total Chlorine Residual (Hi) 2.7, (Lo) 0.27

Worksheet 2 – Report results Page 1 of 4

LABORATORY DATASHEET

Sample Source / Sample day
/date / Result from ……. / Turb-idity
(NTU) / pH / Color (HU) @
456nm / UV abs/
cm @
254nm / Fluoride
(mg.L-1) / Residual Chlorine
(mg.L-1) / Odor / Comments
Adjustment Req
Free / Total / Cold / Hot
Raw / Lab
In-line
Diff.
Post-chemical dosing / Lab / 6.02 / OK nil adj
In-line / 6.07
Diff. / -0.05
Inflow-settled
Pre-lime / Lab / 0.4 / 4 / 0.101 / 0.24
In-line / 0.4
Diff. / 0.0
Settled
Post-lime
Underfloat / Lab / 7.50
In-line / 7.46
Diff. / +0.04
Filtered / Lab / 0.47 / #2
In-line
Diff.
Prior to storage / Lab
In-line
Diff.
After storage / Lab / 1.35
In-line / 1.32
Diff. / +0.03
24 hr composite / Mon
24 hr composite / Tues
24 hr composite / Wed

Worksheet 2 – Report results Page 4 of 4