Ohio Water Microbiology Lab
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Internal Information
Ohio Water Science Center
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OWML: QA/QC
Quality Assurance/Quality Control Manual: Ohio Water
Microbiology Laboratory.
Updated October 2008
By Donna S. Francy, Rebecca N.
Bushon, Erin E. Bertke, Christina A. Likirdopulos, Amie M. G. Brady, Christopher
M. Kephart, Erin Stelzer, and Donald M. Stoeckel
ABSTRACT
INTRODUCTION
GENERAL LABORATORY QUALITY
ASSURANCE/QUALITY-CONTROL PRACTICES
METHODS OF ANALYSIS, MEDIA AND REAGENT
PREPARATION, AND ANALYTICAL QUALITY-CONTROL PROCEDURES
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Compliance And Official Methods
REFERENCES
APPENDICES
A. OWML
Service request form
AA.
Equipment QC Log Sheet
B.
Sample log sheet
BB.
Instructions for quality control
of deionized water
C.
MI agar preparation
D.
Analysis of E. coli and total coliforms using Colilert Quanti-Tray
D1.
Collection and analysis of sediment samples using Colilert Quantitray
E.
Presence/absence analysis of E. coli and total coliforms using Colilert,
large volume samples
F.
mTEC agar and urea-phenol solution preparation
G.
Modified mTEC agar preparation
H.
mEI agar preparation
I.
Analysis of Clostridium perfringens in environmental water samples
J.
Media quality-control procedures
K.
Media and buffer quality-control log sheet
L.
Expendable supplies request form
M.
Buffer preparation
O.
Coliphage detection by USEPA Method 1602: Single-Agar Layer (SAL)
O1.
NWIS coding for coliphage results
P.
QC for Method 1602: Single-Agar Layer (SAL)
Q.
Coliphage detection by USEPA Method 1601: Two-Step Enrichment
R.
QC for Method 1601: Two-Step Enrichment
S.
Detection of Actinomycetes in water
TABLES
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Current
laboratory personnel and qualifications
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Acceptance criteria for
laboratory water quality-assurance checks
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Acceptance criteria for
laboratory thermometers
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Acceptance criteria for
laboratory refrigerators, freezers, incubators, and water baths
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Methods for fecal-indicator
bacteria analysis used by the Ohio Water Microbiology Laboratory
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Information on media,
buffered-dilution water, and reagents prepared and stored in the Ohio Water
Microbiology Laboratory
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Target pH values for media
and reagent preparation
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