OS |
Amount detected is less than the Lower Calibration Limit |
OT |
Sample spiked had pH <2, 2-Chloroethylvinylether degrades in acid |
OU |
Sample diluted due to matrix inference. Reporting limits raised. |
OV |
Sample filtered in lab. |
OW |
Value is the result of an unidentified peak in the TPH Gas range. |
OX |
Surrogate recorvery high due to matrix effects-refer to 2nd surr |
OZ |
Value is MTBE concentration present in the TPH Gas range. |
P |
EPA Flag - > 25% D for detected concentrations between 2 columns |
PA |
Possible biogenic interference in detected hydrocarbons |
PB |
The sample flash point is greater than 60 C (140 F) |
PC |
Sample taken from VOA vial with air bubble > 6mm diameter |
PD |
Recommended storage temp of 4C exceeded prior to analysis |
PE |
Possible high bias due to CCV falling outside acceptance criteria |
PF |
Possible low bias due to CCV falling outside acceptance criteria |
PG |
The CC standard was outside of the acceptance criteria |
PI |
Primary and confirm results varied by > than 40% RPD |
PJ |
Result from re-extract/re-anal to confirm original MS/MSD result |
PK |
Opening calib verification standard outside acceptance criteria |
PL |
Opening calib. for analyte out of limits due to instru. contam. |
PM |
Closing calib. for analyte out of limits due to instru. contam. |
PN |
Closing calib outside limits-ave %diff for analytes met 15% req. |
PO |
Dilutions for BOD failed criteria of 1mg/L resid. diss. O |
PP |
Dilutions for BOD failed criteria of 2mg/L diss. O depletion |
PQ |
Analyte detectable in MB, but less than 5% of sample result |
PR |
Preliminary result |
PS |
Heavier hydrocarbon than requested fuel |
PT |
Hydrocarb. in req. fuel range, but doesn't resemble req. fuel |
PTV |
PTV = Purge Test Volume(s) |
PU |
Analyte detected in blank but not in associated samples |
PV |
Hydrocarbon result partly due to individ. peak(s) in quant. range |
PW |
Lighter hydrocarbons contributed to motor oil range quantitation |
PX |
Sample extrctd beyond method hold time; within CA LUFT hold time |
PY |
SW3630C clean-up method performed |
PZ |
Lighter hydrocarbons contributing to diesel range quantitation |
QB |
Unidentified hydrocarbons C9-C16 |
QCA |
Quantitation begun immed. before RT of tert-Butanol (TBA) |
QCM |
Quantitation began immediately following methanol peak |
QD |
Chromatographic pattern does not resemble fuel standard |
QE |
Results in the diesel range are primarily from overlap heavy oil |
QF |
Analyte recovery outside critera |
QG |
Individual analyte exceedances allowed per NELAC |
QM |
Result is reported below the CRDL for QC purposes only. |
QN |
Not to be reported for compliance purposes. |
QO |
Compound did not meet ID guidelines. Addit. GC/MS ID params used. |
QP |
Holding Time Immediate. Analyzed as close to receipt as possible |
QQ |
Analyte found in travel blank but not in associated samples. |
QR |
Reported from a secondary dilution (to get result on scale). |
QS |
Must be analyzed in field to meet specified 15 min holding time. |
QT |
TUa = 0.0 |
QU |
Per EPA, benzidine subject to oxidative loss during solvent conc. |
QV |
Possibly aged gasoline. |
QW |
Matrix is reductive; possible low bias in matrix/post spike. |
QX |
This test was perfornmed in the field, not in the laboratory. |
QY |
Quantitated against a Stoddard solvent standard |
QZ |
Sample collected in tedlar bag. |
R |
EPA Flag - Data rejected |
RA |
RPD exceeds limit due to matrix interf.; % recovs. within limits |
RB |
RPD exceeded method control limit; % recoveries within limits. |
RC |
RPD useless info due to varying samp. wghts using Encore sampler |
RD |
Sample diluted: high level non-target analytes due to elev. RL |
RE |
Elevated reporting limits due to limited sample volume |
RF |
Primary/confirm. results vary >40% RPD; res. may still be useful |
RG |
Estimated result. Result is < RL and > or equal to IDL. |
RH |
The reporting limit is elevated due to high analyte levels. |
RI |
The method blank contains the analyte at a reportable level |
RJ |
Contract limits originate from BP LaMP Technical Requirements |
RK |
Sample diluted due to high concentration of MTBE. |
RQ |
Spike recovery not calculated due to high conc. of analyte. |
RS |
Gasoline/Diesel used as carbon source for degrading bacteria. |
RT |
Sterile Water |
RU |
LCS rec. within marginal exceedances, 3-4 s.d. around the mean. |
RV |
Surr. recovery outside of control limits due to required dilution |
RW |
Chrom. pattern matches std. but lighter hydrocarbs. also present |
RX |
Chrom. pattern matches std. but heavier hydrocarbs. also present |
RY |
Standard Instrument related QC exceeds the control limits. |
RZ |
4-BFB is outside acceptance limits. All other QC parameters in control, therefore data was approved. |
SA |
SW3665 clean-up method performed |
SB |
SW3620 clean-up method performed |
SC |
SW3640 clean-up method performed |
SG |
A silica gel cleanup procedure was performed. |
SN |
See narrative and/or special notes. |
T5 |
<100g avail for TCLP extrctn-vol of extrct adjusted per procd |
TA |
Sample container received with headspace. |
TB |
Conc. could not be determined due to high dissolved solids conc. |
TC |
Total Weight Percent Adjusted |
TD |
Hydrocarbon reported does not match the pattern of Diesel standard |
TE |
Hydrocarbon reported does not match the pattern of Gasoline standard |
TF |
The quantitation limit has been raised due to exhibited elevated noise or matrix interference. |
TG |
Ion Ratio outside of limits, value is estimated maximum possible concentration (EMPC). |
TH |
The sample minimum detectable concentration (MDC) is greater than the requested reporting limit (RL) |
TJ |
Tracer exceeds control limit due to very low tracer value. |
TO |
Value off the electronic scale of detector. |
TV |
Sample was not taken due to high vacuum. |
TW |
LCS recovery exceeds control limit. |
TX |
LCSD recovery exceeds control limit. |
TY |
Estimated due to discrepancies meeting analyte-specific QC criteria. Dual Column %Diff over limit. |
TZ |
Carrier exceeds control limit. |
U |
EPA Flag - Compound was analyzed for, but was not detected |
UA |
Average. |
UB |
Value affected by contamination. |