| QP |
Holding Time Immediate. Analyzed as close to receipt as possible |
| QO |
Compound did not meet ID guidelines. Addit. GC/MS ID params used. |
| QN |
Not to be reported for compliance purposes. |
| QM |
Result is reported below the CRDL for QC purposes only. |
| QG |
Individual analyte exceedances allowed per NELAC |
| QF |
Analyte recovery outside critera |
| QE |
Results in the diesel range are primarily from overlap heavy oil |
| QD |
Chromatographic pattern does not resemble fuel standard |
| QCM |
Quantitation began immediately following methanol peak |
| QCA |
Quantitation begun immed. before RT of tert-Butanol (TBA) |
| QB |
Unidentified hydrocarbons C9-C16 |
| PZ |
Lighter hydrocarbons contributing to diesel range quantitation |
| PY |
SW3630C clean-up method performed |
| PX |
Sample extrctd beyond method hold time; within CA LUFT hold time |
| PW |
Lighter hydrocarbons contributed to motor oil range quantitation |
| PV |
Hydrocarbon result partly due to individ. peak(s) in quant. range |
| PU |
Analyte detected in blank but not in associated samples |
| PTV |
PTV = Purge Test Volume(s) |
| PT |
Hydrocarb. in req. fuel range, but doesn't resemble req. fuel |
| PS |
Heavier hydrocarbon than requested fuel |
| PR |
Preliminary result |
| PQ |
Analyte detectable in MB, but less than 5% of sample result |
| PP |
Dilutions for BOD failed criteria of 2mg/L diss. O depletion |
| PO |
Dilutions for BOD failed criteria of 1mg/L resid. diss. O |
| PN |
Closing calib outside limits-ave %diff for analytes met 15% req. |
| PM |
Closing calib. for analyte out of limits due to instru. contam. |
| PL |
Opening calib. for analyte out of limits due to instru. contam. |
| PK |
Opening calib verification standard outside acceptance criteria |
| PJ |
Result from re-extract/re-anal to confirm original MS/MSD result |
| PI |
Primary and confirm results varied by > than 40% RPD |
| PG |
The CC standard was outside of the acceptance criteria |
| PF |
Possible low bias due to CCV falling outside acceptance criteria |
| PE |
Possible high bias due to CCV falling outside acceptance criteria |
| PD |
Recommended storage temp of 4C exceeded prior to analysis |
| PC |
Sample taken from VOA vial with air bubble > 6mm diameter |
| PB |
The sample flash point is greater than 60 C (140 F) |
| PA |
Possible biogenic interference in detected hydrocarbons |
| P |
EPA Flag - > 25% D for detected concentrations between 2 columns |
| OZ |
Value is MTBE concentration present in the TPH Gas range. |
| OX |
Surrogate recorvery high due to matrix effects-refer to 2nd surr |
| OW |
Value is the result of an unidentified peak in the TPH Gas range. |
| OV |
Sample filtered in lab. |
| OU |
Sample diluted due to matrix inference. Reporting limits raised. |
| OT |
Sample spiked had pH <2, 2-Chloroethylvinylether degrades in acid |
| OS |
Amount detected is less than the Lower Calibration Limit |
| OR |
Heterotrophic bacteria colonies too numerous to count. |
| OQ |
Positive - (+) |
| ON |
MDL raised due to matrix interference. |
| OM |
EMPC/NDR Peak detected does not meet ratio criteria (elevated DL) |
| OL |
Result may be biased high due to carry over from prior analysis. |
| OK |
Incubation performed at 35C for 48hrs in plate count agar |
| OJ |
All samples & QC in batch analyzed to meet high-level rep limits |
| OI |
Rep.limit raised: carryover from contam samp earlier in analy seq |
| OH |
Report limit raised due to inadequate response at lowest cal. |
| OG |
Non-aggressive |
| OF |
Aggressive |
| OE |
Absent |
| OD |
Present |
| OC |
Result not bracketed by accept.cal check due to inst. malfunction |
| OB |
Surrogate and QC reported in ug/L. |
| OA |
Analyte over-range when run undiluted. Diluted result below PQL. |
| NG |
The reported result is a negative value |
| N |
EPA Flag - Presumptive evidence of a compound |
| MZ |
1 deg. ion is at RT but hydrocarbs interfere with 2 deg. ion eval |
| MJ |
Sample was injected past the method specified tuning time period. |
| MI |
Hold time compliance not determined; no sample time on COC |
| MH |
Analyte determined to be in travel blank before left lab |
| MG |
This analyte is a suspected lab contaminant |
| MF |
Sample received chemically preserved - pH measured in lab > 2.0 |
| ME |
Initial analysis within holding time but required confirmation |
| MD |
Identity of individual peak(s) confirmed by GCMS |
| MC |
Sample received unpreserved but analyzed within 7 days |
| MB |
Analyte present in the method blank |
| MA |
MS/MSD results unavail. due to failed CCV; batch accepted per LCS |
| M |
A matrix effect is present. |
| LZ |
Sample(stored at >0C,<4C) receipt >8hr HT. Anal w/in meth. HT |
| LY |
Sample(stored at >0C,<4C) prep > 8hr reg. HT. Anal. w/in meth. HT |
| LX |
Quantitated against diesel fuel. |
| LW |
Quantitated against gasoline. |
| LV |
Non-fuel pattern present. |
| LU |
Unquant. hydrocarbons in sample, outside reported carbon range. |
| LT |
RPD calc. does not provide useful info due to sample wt variation |
| LS |
Analyte%RSD>meth. calib.accept.limits. Avg%RSD for all meet SW846 |
| LR |
LCS recovery below method control limits. |
| LQ |
LCS recovery above method control limits. |
| LP |
LCS rec.above meth. control limits. Analyte ND. Data not impacted |
| LO |
MS and/or MSD result unavailable. Batch accept. based on LCS rec. |
| LN |
MS and/or MSD below acceptance limits. See Blank Spike(LCS). |
| LM |
MS and/or MSD above acceptance limits. See Blank Spike(LCS). |
| LL |
B/N surr. above limits. Data accept. based on other 2 B/Nsurr. |
| LK |
B/N surr. below limits. Data accept. based on other 2 B/Nsurr. |
| LJ |
Acid surr. above limits. Data accept. based on other 2 acid surr. |
| LI |
Acid surr. below limits. Data accept. based on other 2 acid surr. |
| LH |
Surrogate recovery above the acceptance limits. |
| LG |
Surrogate recovery below the acceptance limits. |
| LF |
Chrom. pattern in diesel range more closely resembles kerosene. |
| LE |
Confirmation not performed. Analyte present in historical data |
| LD |
Confirmatory analysis not performed as required by the method. |
| LC |
Original analysis a positive result. Reanalysis did not confirm. |
| LB |
Confirmatory analysis past hold time. Orig.result not confirmed. |