2023-02-13_HYDROLOGY - C1980004

• Permit No: C1980004
• IBM Index Class Name: Hydrology
• Doc Date: 2/13/2023
• Doc Name: Stormwater Annual Report
• From: Ridge Runner
• To: DRMS
• Email Name: CCW
• Email Name: THM
• Media Type: D
• Archive: No

ACZ Laboratories, Inc.
2773 Downhill Drive Steamboat Spnngs,CO 80487 [phone]
'Report Header Explanations
Batch A distinct set of samples analyzed at a specific time
Found Value of the QC Type of interest
Limit Upper limit for RPD,in%.
Lower Lower Recovery Limit,in% (except for LCSS,mg/Kg)
MDL Method Detection Limit. Same as Minimum Reporting Limit unless omitted or equal to the PQL(see comment#5).
Allows for instrument and annual fluctuations
PCN/SCN A number assigned to reagents/standards to trace to the manufacturers certificate of analysis
PQL Practical Quantitalion Limit. Synonymous with the EPA term"minimum level"
QC True Value of the Control Sample or the amount added to the Spike
Rec Recovered amount of the true value or spike added,in%(except for LCSS,mg/Kg)
RPD Relative Percent Difference,calculation used for Duplicate QC Types
Upper Upper Recovery Limit,In% (except for LCSS,mg/Kg)
Sample Value of the Sample of interest
!QC Sample Types
AS Analytical Spike(Post Digestion) LCSWD Laboratory Control Sample-Water Duplicate
ASO Analytical Spike(Post Digestion)Duplicate LFB Laboratory Fortified Blank
CCB Continuing Calibration Blank LFM Laboratory Fortified Matrix
CCV Continuing Calibration Verification standard LFMD Laboratory Fortified Matrix Duplicate
DUP Sample Duplicate LRB Laboratory Reagent Blank
ICB Initial Calibration Blank MS Matrix Spike
/CV Initial Calibration Verification standard MSD Matrix Spike Duplicate
ICSAB Inter-element Correction Standard-A plus B solutions PBS Prep Blank-Soil
LCSS Laboratory Control Sample-Soil PBW Prep Blank-Water
LCSSD Laboratory Control Sample-Soil Duplicate PQV Practical Quantitation Verification standard
LCSW Laboratory Control Sample-Water SOL Serial Dilution
Sample Type Explanations
Blanks Verifies that there is no or minimal contamination in the prep method or calibration procedure.
Control Samples Verifies the accuracy of the method,including the prep procedure.
Duplicates Verifies the precision of the instrument and/or method.
Spikes/Fortified Matrix Determines sample matrix interferences,if any.
Standard Verifies the validity of the calibration.
B Analyte concentration detected at a value between MDL and PQL.The associated value is an estimated quantity.
H Analysis exceeded method hold time. pH is a field test with an immediate hold time.
L Target analyte response was below the laboratory defined negative threshold
U The material was analyzed for,but was not detected above the level of the associated value
The associated value is either the sample quantitation limit or the sample detection limit.
(1) EPA 600/4-83-020. Methods for Chemical Analysis of Water and Wastes,March 1983
(2) EPA 600/R-93-100. Methods for the Determination of Inorganic Substances in Environmental Samples,August 1993.
(3) EPA 600/R-94-111. Methods for the Determination of Metals in Environmental Samples-Supplement I,May 1994
(4) EPA SW-846. Test Methods for Evaluating Solid Waste
(5) Standard Methods for the Examination of Water and Wastewater.
(1) QC results calculated from raw data Results may vary slightly it the rounded values are used in the calculations.
(2) Soil,Sludge,and Plant matrices for Inorganic analyses are reported on a dry weight basis
(3) Animal matrices for Inorganic analyses are reported on an"as received"basis.
(4) An asterisk in the"XQ"column indicates there is an extended qualifier and/or certification qualifier
associated with the result.
(5) If the MDL equals the PQL or the MDL column is omitted,the PQL is the reporting limit.
For a complete list of ACZ's Extended Qualifiers,please Dick:
https://acz.comlwp-content/uploads/2019/04/Ext-Oual-Li st.pdf
REP001.03.15 02
L76600-2210311121 Page 3 of 12