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Document ID ca-bc-swqdqg-null Title Stewardship Water Quality Data QA/QC Guidelines URL https://www2.gov.bc.ca/assets/gov/environment/air-land-water/water/waterquality/monitoring-water-quality/water-stewardship/stewardship_data_qaqc_guidelines.pdf Jurisdiction /ca/bc Subdomain(s) Drinking water, Wastewater Language en Status completed Analyzed at 2026-03-15 05:58:34.123235+00:00 Relevance Technical guidelines for water quality sampling and data reporting protocols.

Q Qualitative Requirements (45)

Req ID Category Intent Legal Status Name Subdomain(s) Context Conditions Confidence
#Q001administrativereportingmandatoryMinistry Data Quality Standards AdherenceotherData entry to EMS requires that Ministry data quality standards are followed.When entering data into the Environmental Monitoring System (EMS)high
#Q002operationaloperationalmandatoryField Data QA/QC ProceduresotherField data must always go through QA/QC procedures by the sampler prior to upload to EMSPrior to upload to EMShigh
#Q003monitoringoperationalmandatoryEMS Site Establishment ConstraintsotherOnce a site is established, it should not be moved more than 5 m from the original site location, or a new EMS ID must be created.When returning to monitor an established EMS sitehigh
#Q004reportingreportingmandatoryEMS Requisition CopiesotherEnsure you have two copies (one to send to lab, one for record keeping) of all requisitions to be used and fill in all data fields on both copies.Lab Samples Onlyhigh
#Q005reportingreportingmandatoryField Record KeepingotherAlways keep a record (hardcopy or photo of the original field sheet).When collecting and recording field datahigh
#Q006reportingreportingmandatoryRequisition Record KeepingotherKeep one copy of completed requisitions as this is the only way to check that all data are entered by the lab.Lab Samples Onlyhigh
#Q007operationaloperationalmandatoryField Instrument Calibration RecordsotherHandheld field instruments used for collecting data need to have detailed calibration records (i.e., date of calibration, pre/post calibration readings, expiry data of calibration standards used) kept.When using handheld field instruments for collecting datahigh
#Q008reportingreportingrecommendedCalibration Records SubmissionotherCalibration records should be kept and submitted with data to trained personnel who are uploading field data.When uploading field datahigh
#Q009operationaloperationalrecommendedField Sheet QA/QC ChecksotherImmediately after data are collected, while monitoring observations are still fresh, field sheets should be checked by the sampler for completeness, clarity, and data entry errorsImmediately after data are collectedhigh
#Q010reportingreportingmandatoryElectronic Data Submission FormatotherSubmission of data to ENV staff (or partner agencies trained to upload data into EMS) requires data to be in a consistent clear electronic format.Upon submission of data to ENV staff or partner agencieshigh
#Q011operationaloperationalmandatoryTranscribed Data ReviewotherTranscription errors can occur at this stage; review QA/QC transcribed data relative to raw field data prior to submission to ENV.Prior to submission to ENVhigh
#Q012reportingreportingmandatorySample Receipt Email RetentionotherSample receipt email - confirming the samples have been received by the lab. Review to ensure all samples were received and documented correctly. Retain this email until data have been uploaded to EMS and reviewed.Laboratory Samples Onlyhigh
#Q013reportingreportingmandatoryEMS Notification Email Review and RetentionotherEMS notification email - confirming that lab data have been successfully uploaded to EMS (if project is conducted in partnership with ENV). Review for any upload error messages as soon as possible... Keep these emails until data has been reviewed.If project is conducted in partnership with ENVhigh
#Q014operationalreportingmandatoryLab Certificate of Analyses Inclusion CheckotherLab Certificate of Analyses (COA) - including the water quality sampling results and laboratory QA/QC information (in both Excel format and pdf attachments). Ensure all results and QAQC tabs are included.Laboratory Samples Onlyhigh
#Q015reportingreportingmandatoryLab Certificate of Analyses FilingotherThe attachments in the third email must be saved to the appropriate project folder; perform Step 3Upon receipt of Lab Certificate of Analyseshigh
#Q016operationaloperationalmandatoryDetection Limits CheckotherDetection Limits - Ensure detection limits are less than Water Quality Guidelines (WQG) or Water Quality Objectives (WQO), preferably by one order of magnitude.When reviewing Detection Limits tab of Lab COAhigh
#Q017corrective_actionoperationalmandatoryAddress Identified QC IssuesotherPrior to the next sampling date, address any identified QC issues so that they are not carried to the next set of samples.Prior to the next sampling datehigh
#Q018corrective_actionreportingmandatoryHold Time Exceedance Corrective ActionotherIf the hold time exceedance is due to the lab, contact the lab and report it to the Senior Provincial Laboratory Specialist or other laboratory contract if not collected in partnership with ENV.If hold time exceedance is due to the labhigh
#Q019reportingreportingmandatoryResolution DocumentationotherEnsure that all issues, investigation avenues, and resolutions are recorded so that information can be used when interpreting data and writing reports.When resolving QA/QC or lab processing issueshigh
#Q020operationaloperationalmandatoryData Export Format RequirementsotherEnsure that the download path is correct, and that the data are changed from their original format (.csv) to an Excel workbook (.xlsx).When downloading data from EMShigh
#Q021reportingreportingmandatoryData Spreadsheet Content RequirementsotherEnsure your data spreadsheet includes the details outlined in Table 1 below.When preparing data spreadsheet for analysishigh
#Q022operationaloperationalrecommendedData Spot CheckingotherIt is recommended that you do a 5 to 10% spot check of data sourced from EMS vs. the COA to ensure that the data sets are consistent.Before any data are interpretedhigh
#Q023reportingreportingrecommendedTechnical Report QA/QC SummaryotherTechnical reports should include a section summarizing data QA/QC and describing how those issues have been resolved or impact the interpretation of the data.When writing technical reportshigh
#Q024corrective_actionreportingmandatoryOld Data Error ReportingotherIf downloading old data and there is a potential error, contact ENV water quality staff to try to locate the original results in ENV archives... Any errors should be corrected in EMS by ENV staff.If downloading old data and there is a potential errorhigh
#Q025monitoringoperationalrecommendedLatitude and Longitude FormattingotherLatitude (lat) and longitude (long) should be expressed as Universal Transverse Mercator (UTM) systems (Easting and Northing) or decimal degrees, both of which are accepted by EMS.When recording EMS site coordinateshigh
#Q026administrativeoperationalmandatoryRestricted Manual Requisition EntryotherThe only data that gets filled in the requisition/chain of custody form by hand are the field recorded measurements such as temperature, pH, dissolved oxygen, and specific conductance.When filling out EMS requisition or lab Chain of Custody formshigh
#Q027reportingoperationalmandatoryManual Transcription of Field DataotherDate (yyyy-mm-dd), time (24 hour) and sample depth are transcribed from field notes and added manually on the EMS requisition form/chain of custody forms prior to sending samples away.Prior to sending samples to the laboratoryhigh
#Q028corrective_actionreportingguidanceLaboratory Upload Confirmation Follow-upotherIf you do not receive an email confirming a successful (re)upload, please contact the lab to ensure the errors were corrected.If no email confirming successful upload or re-upload is receivedhigh
#Q029monitoringoperationalmandatoryQC and Hold Time Evaluation ReviewotherReview any results that have a red X in the QC Evaluation or Hold Time Evaluation columns.When reviewing the Detailed report sheet of the Laboratory Certificate of Analyses (COA)high
#Q030operationaloperationalmandatoryLaboratory Data Quality Objectives Complianceotherensure that the lab data quality objectives have been met and are consistent with the ENV Lab Manual for those tests.When reviewing lab duplicates in the Laboratory Certificate of Analyses (COA)high
#Q031monitoringoperationalmandatoryBC Field Sampling Guide Reference RequirementotherCheck the BC Sampling Guide for information in regards to blank and replicate samples BC Field Sampling GuideWhen performing QA/QC checks for blank and replicate sampleshigh
#Q032monitoringoperationalmandatorySite Coordinate VerificationotherUse GPS, then confirm coordinates with Google Earth to prevent transcription errors when creating new EMS monitoring sites.When creating new EMS monitoring siteshigh
#Q033administrativeoperationalmandatoryField Sheet DesignotherPrepare handwritten or digital field sheets so data are entered in a consistent format and samplers have fields in which to record site information (e.g., EMS ID, Site name), date/time, sampler names, conditions (changes site to site, note any obvious influence on water quality), weather, units, field instruments used to collect data (identify with unit serial #), and any additional notes.When preparing for field data entryhigh
#Q034monitoringoperationalmandatoryLab Transcription CheckotherCheck that field results and dates/times have been transcribed correctly by the lab against field sheets or requisitions.When reviewing the Results summary sheet of the Laboratory Certificate of Analyses (COA)high
#Q035monitoringoperationalmandatoryDetection Limit Qualifier ReviewotherReview any detection limits that have qualifiers.When reviewing the Detailed report sheet of the Laboratory Certificate of Analyses (COA)high
#Q036monitoringoperationalmandatoryData Range VerificationotherCheck to see if the data are within range of what you would expect to see of the water body.When reviewing the Laboratory Certificate of Analyses (COA)high
#Q037monitoringoperationalmandatoryOutlier ReviewotherReview the results for obvious outliers.When reviewing the Laboratory Certificate of Analyses (COA)high
#Q038monitoringoperationalmandatoryQC Assessment of Blanks and ReplicatesotherAssess results for any blanks, replicates, or split samples to identify potential sample contamination, field sampling, or lab processing issues.When reviewing the Laboratory Certificate of Analyses (COA)high
#Q039monitoringoperationalmandatoryField and Lab Results ComparisonotherCompare any field results with lab results for similar parameters to identify if results appear to be compatible or within acceptable ranges.When reviewing the Laboratory Certificate of Analyses (COA)high
#Q040corrective_actionoperationalmandatoryEMS Data Update Post-ReanalysisotherEnsure that EMS data are updated and corrected if needed following re-analysis of samples or extra field sampling.Following re-analysis of samples or extra field samplinghigh
#Q041monitoringoperationalmandatoryCOA Cover Page ReviewotherEnsure the dates and site information are correct for the job referenced.When reviewing the Cover page of the Laboratory Certificate of Analyses (COA)high
#Q042monitoringoperationalmandatoryLab QC Evaluation CheckotherThe lab's QC plot and evaluation legend is at the bottom of the page; check these to ensure they have been met.When reviewing the Quality Control tab of the Laboratory Certificate of Analyses (COA)high
#Q043monitoringoperationalmandatoryAnalytical Method Consistency CheckotherWhen working with more than one lab, for split sampling or when there are multiple sampling parameters, use this information to ensure consistent analysis methods are being used.When reviewing the Method tab of the Laboratory Certificate of Analyses (COA)high
#Q044corrective_actionoperationalmandatoryHold Time Exceedance Verification with ShipperotherIf the hold times are exceeded because of the date received, verify with the shipper.If hold times are exceeded due to the date receivedhigh
#Q045administrativeoperationalrecommendedManual Spreadsheet Creation RecommendationotherHigher data transcription error rates occur when manually creating your own project Excel spreadsheet using the COA as the source, thus this is not recommended.When setting up data for further analysishigh

P Quantitative Requirements (4)

Req ID Category Intent Legal Status Name Subdomain(s) Limit Type Limit Value Context Conditions Confidence
#P001operationaloperationalrecommendedSite relocation distance limitotherrequirement<= 5 mOnce a site is established, it should not be moved more than 5 m from the original site location, or a new EMS ID must be created.high
#P002operationalreportingguidanceCoordinate storage precisionotherrequirement6 decimal degreesEMS stores lat/long to 6 decimal degrees.Latitude (lat) and longitude (long) should be expressed as Universal Transverse Mercator (UTM) systems (Easting and Northing) or decimal degreeshigh
#P003operationalreportingrecommendedData spot check percentageotherrequirement5-10 %It is recommended that you do a 5 to 10% spot check of data sourced from EMS vs. the COA to ensure that the data sets are consistent.Before any data are interpreted some additional QC should be completed.high
#P004operationaloperationalrecommendedDetection limit marginotherrequirement1 order of magnitudeDetection limits should be less than Water Quality Guidelines (WQG) or Water Quality Objectives (WQO)This should be checked with the lab before analysis; instances of sample or matrix interference (e.g., turbidity) may affect this.high

D Definitions (11)

Req ID Category Name Context Confidence
#D001QA/QCData Quality Assurance/Quality Controlhigh
#D002ENVBritish Columbia Ministry of Environment and Climate Change Strategyhigh
#D003EMSEnvironmental Monitoring Systemhigh
#D004EPDEnvironmental Protection Divisionhigh
#D005UTMUniversal Transverse Mercatorhigh
#D006COACertificate of Analyseshigh
#D007outlierAn outlier is an extreme result in a data set which could be due to natural conditions or possibly a lab error.high
#D008WQGWater Quality Guidelineshigh
#D009WQOWater Quality Objectiveshigh
#D010latLatitudehigh
#D011longLongitudehigh