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Home My WebLink AboutNC0071528_Inspection_20181120AC56809 North Carolina Division of Water Resources Water Sciences Section LaboratoEy Results Loc. Dow.: LAKE NORMAN WOODS WWTP County: Catawba Collector: W BELL Visitlb Region: Mooresville Report To MRO Location ID: NCO071528 River Basin CATAWBA Collect Date: 10/2512018 Priority COMPLIANCEICOC Emergency Collect Time: 10_66 Sample Matrix: WASTEWATER COC Yes/No YES Sample Depth Loc. Type: Effluent Final Report Sample ID: ACS6809 PO Number # Date Received: 1012612018 Time Received: 08:10 Labworks LoginlD TASCENZ01 Delivery Method NC Courier Final Report Date: 11/14/18 Report Print Date: 11115/2018 It this report is labeled preliminary report, the results have not been validated. Do not use for Regulatory purposes. Resuitl Method Analysis CAS # Analyte Name PPQL Qualifier Units Reference Date Validated by LAB Sample temperature at receipt by lab 1.1 °C 10/26/18 MSWIFT MIC BOD, 5-Day in liquid 2.0 3.7 mglL SM 5210 B-2001 10126118 ESTAFFORDI Coliform, MF Fecal in liquid 1 1 B2,Qi CFU1100mi SM 9222 D-1997 10/20/18 ESTAFFORDI NUT NI13 as N in liquid 0.02 0.06 mglL as N EPA 350.1 REV 2 10131/18 CGREEN NO2+NO3 as N in liquid 0.02 29 mg1L as N EPA 353.2 REV 2 10/31/18 CGREEN Phosphorus total as P in liquid 0.02 3.7 mg1L as P EPA 365.1 REV 2 11018 CGREEN Total Kjeldahl N as N in liquid 0.2 0.62 mg1L as N EPA 351.2 REV 2 1119118 CGREEN WET Residue —Suspended in liquid 6.2 19 mg1L SM 2540 D-1997 10/31/18 CGREEN WSS Chemistry Laboratory>? 1623 Mall Service Center, Raleigh, NC 27699-1623 (919) 7333908 "Not Detected" or "U" does not indicate the sample is anayte free but that the analyte is not detected at or above the PQL. Page 1 of 3 NC (DIA Laboratory Section Pfsu(ts/Samp(e Comments/QuaC�r(Definitions Sample to: ACS6809 _ Result/ Method Analvsis NCDEQ-WSS-Chemistry Lab Data Qualifiers Al The reported value is an average, where at least one result is qualified with a 'U". The PQL is used for the qualified result(S) to cal B1 Coliform-Countable membranes with less than 20 colonies. Reported value is estimated or is a total of the counts on all filters repot B2 Coliform-Counts from all filters were zero. The value reported is based on the number of colonies per 100 ml that would have been B3 Coliform-Countable membranes with more than 60 or 80 colonies. The value reported is calculated using the count from the smalle B4 Coliform-Filters have counts of both >60 or 80 and <20. Reported value is estimated or is a total of the counts on all filters reported B5 Coliform-Too many colonies were present; too numerous to count (TNTC). TNTC is generally defined as >150 colonies. B6 Coliform-Estimated Value. Blank contamination evident. B7 Coliform-Many non-coliform or non-enterococcus colonies or interfering non-coliform or non-enterococcus growth present. In this cc BB1 MPN-No wells or tubes gave a positive reaction. Value based upon the appropriate MPN Index and reported as a less than "<" valu BB2 MPN-All wells or tubes gave positive reactions. Value based upon the MPN Index and reported as a greater than ">" value. C Total residual chlorine was present in sample upon receipt in the laboratory; value is estimated. G1 BOD-The dissolved oxygen (DO) depletion of the dilution water blank exceeded 0.2 mg/L. G2 BOD-The bacterial seed controls did not meet the requirement of a DO depletion of at least 2.0 mg/L and/or a DO residual of at lea G3 BOD-No sample dilution met the requirement of a DO depletion of at least 2.0 mg/L and/or a DO residual of at least 1.0 rl G4 BOD-Evidence of toxicity. This is generally characterized by a significant increase in the BOD value as the sample concentration dE G5 BOD-The glucose/ glutamic acid standard exceeded the range of 198 t 30.5 mg/L. G6 BOD-The calculated seed correction exceeded the range of 0.6 to 1.0 mg/L. G7 BOD-Less than 1 mg/L DO remained for all dilutions set. The reported value is an estimated greater than value and is calculated fo G8 BOD-Oxygen usage is less than 2 mg/L for all dilutions set. The reported value is an estimated less than value and is calculated fol G9 BOD-The DO depletion of the dilution water blank produced a negative value. Jt Surrogate recovery limits have been exceeded. J2 The reported value failed to meet the established quality control criteria for either precision or accuracy. WSS Chemistry Laboratory>> 1623 Mall Service Center, Raleigh, NC 27699.1623 (919( 7334908 "Not Detected" or 'U" does not indicate the sample is analyle free but that the anayte is not detected at or above the PQL. Page 2 of 3 NC rD'tM1t, La6oratory Section T�sults/SampCe Comments/Quafifur (Definitions Sample ID: AC66809 Result/ Method Analysis Wuallnef unlis MererenGe ua[e vnnvacv uv J3 The sample matrix interfered with the ability to make any accurate determination. J4 The data is questionable because of improper laboratory or field protocols (e.g., composite sample was collected instead of grab, p J5 Temperature limits exceeded (samples frozen or >6°C) during transport or not verifiable (e.g., no temperature blank provided): non - is The laboratory analysis was from an unpreserved or improperly chemically preserved sample. The data may not be accurate. J7 This qualifier is used to identify analyte concentration exceeding the upper calibration range of the analytical instrument/method. Th JB Temperature limits exceeded (samples frozen or>6°C) during storage, the data may not be accurate. A The reported value is determined by a one -point estimation rather than against a regression equation. The estimated concentration J10 Unidentified peak. estimated value. J11 The reported value is determined by a one -point estimation rather than against a regression equation. The estimated concentration J12 The calibration verification did not meet the calibration acceptance criterion for field parameters. M Sample and duplicate results are "out of control". The sample is non -homogenous (e.g., VOA soil). The reported value is the lower, N1 Presumptive evidence and estimated value. The component has been tentatively identified base on mass spectral library. N2 There is an indication that the analyte is present, but quality control requirements for confirmation were not met (i.e., presence of N3 This code shall be used if the level is too low to permit accurate quantification, but the estimated concentration is less than the labo N4 This code shall be used if the level is too low to permit accurate quantification, but the estimated concentration is less than the labo N5 The component has been tentatively identified based on a retention time standard. Qt Holding time exceeded prior to receipt by lab. Q2 Holding time exceeded following receipt by lab. P Elevated PQL' due to matrix interference and/or sample dilution. S Not enough sample provided to prepare and/or analyze a method -required matrix spike (MS) and/or matrix spike duplicate (MSD). U Indicates that the analyte was analyzed for but not detected above the reported practical quantitation limit`. The number value repo X1 Sample not screened for this compound. X2 Sampled, but analysis lost or not performed -field error. X3 Sampled, but analysis lost or not performed -lab error. - - -- - - - V Indicates the analyte was detected in both the sample and the associated method blank. Note: The value in the blank shall not be s Y Elevated PQL" due to insufficient sample size. Z1 Inability to analyze the sample. Z2 Questions concerning data reliability. U, J6 The laboratory analysis was from an unpreserved or improperly chemically preserved sample. The data may not be accurate. UU Indicates that the analyte was not detected by a screen analysis. The number value was determined by a one -point estimation at tl WSS Chemistry Laboratory» 1623 Mail Service Center, Raleigh, NC 27699.1623 (919) 7333908 "Not Detected" or "U' does not indicate the sample is analyte free but that the analyte is not detected at or above the PQL. Page 3 of 3 NORTH CAROL NA ROY COOPER Envrranrh#1t1G1 QUdlfly G&V 01tw MICHAEL S. REGAL Secr�rary LfNDA CULPEPPER In redm D,'rsctor 20 November 2018 Mr. Dale Norman Lake Norman Woods HOA 8469 Marina Lane Catawba, North Carolina 28609 Subject: Effluent Sampling Results Lake Norman Woods WWTP NPDES Permit No. NCO071528 Catawba County Dear Mr. Norman: Enclosed is a copy of the laboratory results for the effluent samples collected during the Compliance Sampling Inspection performed at the subject facility on October 25, 2018, by Mr. Wes Bell of this Office. Effluent grab samples were collected at Outfall 001 during this inspection. The facility complied with all applicable permit limits (daily maximums). Please attach this correspondence with the previously issued inspection report (dated November 6, 2018) to complete your records. Should you have any questions concerning this letter, please do not hesitate to contact Mr. Bell at (704) 235-2192, or via email at wes.bell@ncdenr.gov. Enclosure: Effluent Results Sincerely, DocuSigned by: A14CC681 AF27425... W. Corey Basinger, Regional Supervisor Water Quality Regional Operations Section Division of Water Resources, NCDEQ EQ.:> "-mr North Carolina Department of Environmental Quality I Division of Water Resources 610 East Center Avenue I Suite 301I Mooresville, North Carolina 28115 704.663.1699