OMS Software
All articles

OMS Blog

Environmental Testing Laboratory Software: Managing Water, Soil & Air Quality Testing Records

How environmental testing laboratories manage water quality, soil contamination, air emissions, chain of custody, EPA compliance, and NATA accreditation records — and what purpose-built software makes possible.

·Jayant Chandavarkar

Environmental testing laboratories sit at the intersection of public health, regulatory enforcement, and commercial risk. The water samples they analyse determine whether a drinking water supply is safe for a town. The soil results they produce determine whether a contaminated site can be developed or must be remediated. The stack emission test records they generate determine whether an industrial facility is compliant with its EPA licence or faces enforcement action. The consequences of getting it wrong — technically, procedurally, or through a break in chain of custody — extend far beyond the laboratory bench.

Managing environmental testing operations with the rigour these stakes demand requires more than technical competence. It requires systems: for sample tracking, chain of custody documentation, method compliance, accreditation record management, and regulatory report generation. This article covers the full scope of what environmental testing laboratories do, the regulatory frameworks they operate within, and how purpose-built laboratory software supports compliance across water, soil, and air testing disciplines.

What Environmental Testing Laboratories Do

Environmental testing is one of the broadest disciplines in the analytical laboratory sector. The defining characteristic of environmental testing is that samples are collected from the natural or built environment — water bodies, land, air, waste streams — and analysed to determine whether they meet regulatory standards, licence conditions, or client specifications. The testing disciplines covered by environmental laboratories span a wide range of sample types and analytical techniques.

Water Testing

Water testing is the largest single discipline in most Australian environmental laboratories. It encompasses drinking water quality monitoring under the Australian Drinking Water Guidelines (ADWG), wastewater discharge compliance testing under EPA licences, groundwater monitoring at contaminated sites, surface water quality assessment for catchments and waterways, cooling tower water testing (including Legionella monitoring under state water cooling legislation), and recreational water quality assessment for bathing beaches and public pools.

Soil and Land Testing

Soil testing for environmental purposes covers a different scope to geotechnical or agricultural soil testing. Environmental soil analysis is primarily concerned with contamination: the presence and concentration of heavy metals, petroleum hydrocarbons, polycyclic aromatic hydrocarbons (PAHs), volatile organic compounds (VOCs), per- and polyfluoroalkyl substances (PFAS), pesticides, and other pollutants. Asbestos identification in soil — both fibrous and non-fibrous asbestos — is a critical discipline, particularly in urban redevelopment projects on brownfield land in Australian cities.

Air Quality Testing

Air quality testing in the environmental laboratory context covers three distinct activities: stack emission testing (measuring pollutants discharged from industrial stacks and vents), ambient air quality monitoring (measuring background pollutant concentrations in the atmosphere), and workplace air monitoring under workplace exposure standards (WES). Stack emission testing is often a specific requirement of EPA environmental protection licences and must be conducted using methods prescribed or approved by the relevant state EPA.

Waste and Hazardous Materials Testing

Environmental laboratories also test solid and liquid waste streams for characterisation purposes: determining whether a waste material is classified as hazardous under state legislation, whether it can be disposed of at a licensed landfill, or whether it qualifies for specific waste treatment or exemption pathways. This includes leachate testing, waste classification analysis, and contaminated fill testing for construction projects.

Who Commissions Environmental Testing?

The clients of environmental testing laboratories are diverse. Local councils and water utilities commission ongoing drinking water quality monitoring. State and federal government agencies commission surface water and groundwater quality surveys. Mining companies commission environmental baseline studies and ongoing monitoring of their operational footprint — including acid rock drainage, tailings storage facility seepage, and dust deposition. The construction industry commissions soil testing on brownfield sites prior to development. Engineering and environmental consulting firms commission analysis as part of Phase II environmental site assessments on behalf of property purchasers, vendors, and developers. Industrial facilities commission their own stack emission testing for EPA licence compliance reporting.

Regulatory Framework for Environmental Testing

Environmental testing in Australia operates within a layered regulatory framework that spans federal, state, and territory legislation, national environment protection measures, and accreditation requirements. Understanding this framework is essential to understanding the record-keeping obligations that environmental testing laboratories must manage.

State-Based EPA Frameworks

Environmental regulation in Australia is primarily state-based. Each state has its own environmental protection legislation and an environmental protection authority (EPA) that administers it. The major state bodies are:

National Environment Protection Measures (NEPMs)

The National Environment Protection Council (NEPC) makes National Environment Protection Measures (NEPMs) under the National Environment Protection Council Act 1994 (Commonwealth). NEPMs are quasi-regulatory instruments that set national standards with uniform implementation across jurisdictions. The most relevant NEPMs for environmental testing laboratories are:

Australian Drinking Water Guidelines (ADWG)

The ADWG, published by the National Health and Medical Research Council (NHMRC) and the Natural Resource Management Ministerial Council, set guideline values for the quality of water intended for human consumption. The ADWG are not legislation in themselves, but state Safe Drinking Water Acts reference or adopt them as the framework for managing drinking water quality. The ADWG framework covers health-based guideline values for microbial, chemical, and radiological parameters, as well as aesthetic guideline values for physical parameters including turbidity, colour, odour, and taste.

NATA Accreditation for Environmental Laboratories

NATA (the National Association of Testing Authorities, Australia) is Australia's national laboratory accreditation body, established in 1947. NATA accreditation to ISO/IEC 17025 is required or strongly preferred by state EPAs, water utilities, and contaminated land regulators for environmental testing used in compliance reporting. A NATA-accredited environmental laboratory has been assessed by technical peer assessors against its claimed scope — the specific parameters and test methods for which it holds accreditation — and participates in proficiency testing programmes to demonstrate ongoing measurement competency.

For laboratory managers preparing for a NATA assessment, our NATA assessment preparation guide covers what assessors look for and how to get records assessment-ready.

WHO Water Quality Guidelines

The World Health Organization publishes Guidelines for Drinking-Water Quality (currently in its fourth edition, 2017, with 2022 addenda) that underpin the ADWG health-based guideline values. The WHO guidelines provide the risk assessment basis for guideline values for microbial pathogens, chemical contaminants, and disinfectants. Australian environmental laboratories testing for drinking water quality report against ADWG guideline values, which are directly derived from WHO risk assessment methodology.

Water Testing: Drinking Water, Wastewater & Groundwater

Water testing is the most analytically diverse discipline in environmental testing, encompassing a wide range of physical, chemical, and microbiological parameters across multiple water types. Each water type has its own regulatory framework, sampling protocols, approved methods, and reporting requirements.

Drinking Water Quality Testing

Drinking water quality testing covers the full range of ADWG parameters across four categories. Physical parameters — turbidity (nephelometric turbidity units, NTU), colour (Hazen units), pH, conductivity, and temperature — are typically measured in the field at the point of sampling and confirmed in the laboratory. Chemical parameters are more analytically demanding and include:

Microbiological parameters are the most critical from a public health standpoint. Thermotolerant coliforms (Escherichia coli), total coliforms, heterotrophic plate count (HPC), and opportunistic pathogens including Pseudomonas aeruginosa, Cryptosporidium, and Giardia are tested using membrane filtration, most probable number (MPN) methods, and immunofluorescent microscopy. Approved test methods for microbiological water testing are specified in AS/NZS 4276 (Water microbiology series) and Standard Methods for the Examination of Water and Wastewater (APHA 23rd edition).

Wastewater Discharge Testing

Wastewater discharge testing is required as a condition of EPA environmental protection licences for trade waste, sewage treatment plants, and industrial effluent discharge to surface waters or sewer. Licence conditions specify parameters, frequency of monitoring, and approved methods. Common wastewater parameters include biochemical oxygen demand (BOD5), chemical oxygen demand (COD), total suspended solids (TSS), total nitrogen (TN), total phosphorus (TP), pH, temperature, oil and grease, and specific industrial pollutants relevant to the licensed activity — heavy metals for metal plating operations, organics for chemical manufacturing. The approved methods are typically APHA Standard Methods or equivalent AS methods.

Groundwater Monitoring

Groundwater monitoring programmes at contaminated sites, landfills, and mining operations are among the most demanding water testing programmes for chain of custody requirements. Samples are collected from monitoring bores following purging protocols (typically three to five bore volumes or until parameters stabilise), with field measurements of pH, conductivity, dissolved oxygen (DO), oxidation-reduction potential (ORP), and temperature recorded before sample collection. Preservatives must be added immediately after collection — nitric acid for metals, sodium thiosulfate for chlorinated organics — and samples must be chilled to 4°C for transport. Hold times are strictly enforced: volatile organics (BTEX, chlorinated solvents) must typically reach the laboratory within 14 days of collection. Groundwater results are reported against NEPM Schedule B4 groundwater investigation levels (GILs) or site-specific criteria.

Cooling Tower Water Testing

Cooling tower water testing for Legionella is regulated under state public health and building legislation. In Victoria, the Public Health and Wellbeing Regulations 2019 require routine testing of registered cooling towers at defined frequencies, with results reported to the risk management plan. Testing covers Legionella species by culture and where required by PCR, as well as heterotrophic plate count and dip slide testing for ongoing monitoring. Results must be assessed against the prescribed action levels and trigger specific responses — increased biocide treatment, sampling, or shutdown — when exceeded.

Soil and Contaminated Land Testing

Environmental soil testing is fundamentally a discipline about contamination assessment — determining what is in the soil that should not be there, at what concentration, and whether that concentration poses unacceptable risks to human health or the ecosystem. The regulatory framework for contaminated land in Australia is built around the Site Contamination NEPM, with state-specific implementation by each EPA.

Phase I and Phase II Site Assessments

A Phase I environmental site assessment is a desktop and historical review — examining the history of site use, identifying potential contaminating activities, and reviewing available environmental data — without physical sampling. If a Phase I assessment identifies a realistic possibility of contamination, a Phase II assessment is required. Phase II assessments involve physical soil (and groundwater) sampling and laboratory analysis. The sampling design, laboratory methods, and reporting requirements must comply with the Site Contamination NEPM and the implementing state EPA guideline — in Victoria, EPA Publication 1433 (Potentially Contaminated Land - General Practice Note); in NSW, the Contaminated Land Management Act regulatory guidelines.

Key Contaminant Groups in Soil Testing

The analytical suite for contaminated land soil testing is determined by the suspected contaminating activity on site. Standard suites typically include:

NEPM Schedule B Screening Criteria

Results from contaminated site soil analysis are assessed against the health-based investigation levels (HILs) in Schedule B1 of the Site Contamination NEPM and ecosystem investigation levels (EILs) in Schedule B2. HILs are specific to land use category (residential A — with vegetable garden; residential B — without vegetable garden; recreational; commercial/industrial) and are set at concentrations at which a residential risk assessment indicates that further investigation is warranted. Results exceeding HILs do not automatically mean a site is contaminated to an unacceptable standard — they trigger a more detailed risk assessment — but they do require formal investigation and reporting to the relevant state EPA or competent authority.

Asbestos in Soil Testing

Asbestos identification and quantification in soil and fill materials is a specialist discipline requiring trained analysts and specific laboratory procedures. The methods distinguish between fibrous asbestos (presenting the primary health risk) and non-fibrous asbestos-containing material (ACM). Soil samples are examined by stereo microscopy and polarised light microscopy (PLM) to identify asbestos fibres, with results reported as the presence or absence of asbestos and an estimate of the proportion of ACM in the soil. The Safe Work Australia How to Manage and Control Asbestos in the Workplace Code of Practice 2016 and state EPA guidance note requirements for asbestos in fill and contaminated land apply.

Air Quality Testing: Stack Emissions & Ambient Monitoring

Air quality testing for environmental compliance purposes falls into two main categories: source testing (measuring emissions from a specific industrial source such as a stack or vent) and ambient monitoring (measuring background pollutant concentrations in the general atmosphere). A third category — workplace air quality monitoring — overlaps with occupational hygiene but is conducted under workplace exposure standards (WES) administered by Safe Work Australia.

Stack Emission Testing

Stack emission testing is the measurement of pollutants in the exhaust gas stream from an industrial stack, furnace, boiler, engine, or similar source. It is required by EPA environmental protection licences for facilities whose operations emit scheduled pollutants above threshold rates. In Victoria, EPA Publication 1503 (Industrial Air Emissions — Guidance for EPA Licenced Premises) details the EPA's expectations for stack emission monitoring methodology, accreditation, and reporting. In NSW, the NSW EPA's Approved Methods for the Sampling and Analysis of Air Pollutants in New South Wales specify approved methods for each pollutant.

Australian standard AS 4323 (series) covers stationary source emissions sampling and analysis. Individual parts specify methods for particulate matter, combustion gases, and specific pollutants. The AS 4323 series is referenced in EPA licence conditions and NATA scope requirements for stack testing laboratories. Common stack testing parameters and their methods include:

Ambient Air Quality Monitoring

Ambient air quality monitoring measures background concentrations of pollutants in the atmosphere, assessed against the NEPM Ambient Air Quality standards (for PM10, PM2.5, CO, NO⊂2;, O⊂3;, and SO⊂2;) and state EPA licence conditions for facilities required to demonstrate ambient compliance. Continuous ambient monitoring uses reference instruments — beta attenuation monitors (BAM) for PM10/PM2.5, chemiluminescence analysers for NOx, UV photometric analysers for ozone — operated at fixed monitoring stations. Passive samplers (badge diffusion tubes) are used for NO⊂2; and VOC screening over exposure periods of days to weeks.

Workplace Air Monitoring

Workplace air monitoring is conducted under the Safe Work Australia Workplace Exposure Standards for Airborne Contaminants (WES), which set time-weighted average (TWA) and short-term exposure limit (STEL) concentrations for scheduled substances. This monitoring is conducted by occupational hygienists (personal breathing zone sampling) and is analysed by NATA-accredited environmental laboratories for the relevant substances. Common workplace monitoring programmes include isocyanate monitoring for spray painting operations, hexavalent chromium for welding and chromate coating, and respirable crystalline silica for mining, quarrying, and construction activities.

Chain of Custody and Sample Integrity in Environmental Labs

Chain of custody (CoC) documentation is the single most important procedural requirement that distinguishes environmental testing from other laboratory disciplines. Environmental testing results are regularly used in regulatory enforcement, legal proceedings, property transactions, and remediation approvals. In each of these contexts, the admissibility and defensibility of the result depends entirely on demonstrating that the sample was collected, preserved, transported, received, and analysed in a manner that excluded the possibility of contamination, degradation, or mix-up. The chain of custody record is the documentary evidence of that demonstration.

Sample Collection Protocols

Proper chain of custody begins before the sample is collected. The field sampler must use pre-cleaned, laboratory-supplied containers appropriate for the matrix and analyte — different containers for VOC analysis (40 mL amber glass vials with zero headspace) versus metals (polyethylene bottles pre-acidified with nitric acid) versus microbiological (sterile glass bottles with sodium thiosulfate for dechlorination). The sampling point, date, time, and collector must be recorded at the moment of collection, not reconstructed from memory at a later point.

Field quality control samples are an essential component of a defensible environmental sampling programme:

Preservatives, Temperature, and Hold Times

Sample preservation is a strict requirement of most environmental test methods. Preservatives must be added immediately after collection, using laboratory-prepared preserved containers rather than preserved in the field from bulk chemical supplies (which introduces variability in preservative concentration). Temperature during transport must be maintained at 4 ± 2°C, demonstrated by a temperature-indicating device or continuous data logger placed in the sample cooler. Maximum holding times from collection to analysis are specified in the test methods and must not be exceeded — for many parameters, exceeding the hold time renders the result inadmissible. NSW EPA Monitoring and Sampling Guidelines and APHA Standard Methods specify hold times for each parameter and matrix.

CoC Form Requirements

A complete CoC form for an environmental sampling programme must record, at minimum:

Any sample received at the laboratory without a complete CoC form, or where the CoC shows a gap in custody (an unsigned transfer, a missing temperature record), must be flagged and the client notified before analysis proceeds. The result can still be generated, but it must be reported with a qualifier noting the CoC deficiency — and in a regulatory context, this may render the result inadmissible. For a detailed discussion of how CoC documentation works across laboratory disciplines, see our article on sample management and chain of custody.

Managing Environmental Lab Records with Software

The operational complexity of an environmental testing laboratory — multiple matrices, diverse test methods, strict chain of custody requirements, NATA accreditation obligations, and state EPA reporting requirements — cannot be managed effectively with spreadsheets, paper logbooks, and disconnected document stores. Purpose-built laboratory management software changes this by creating a single connected system across every stage of the environmental testing workflow.

Sample Login and CoC Tracking

When samples arrive at the laboratory, the first step is receipt and login. In an effective software system, sample login is the event that initiates the chain of custody record within the laboratory information management system (LIMS). Each sample receives a unique laboratory sample number, linked to the field sample identification, the client's project, the collection date and time, and the CoC form reference. The condition of the sample on receipt — temperature, container integrity, preservative confirmation — is recorded against each sample at login. Any sample received with an incomplete CoC is automatically flagged, with the discrepancy recorded in the laboratory record. This creates an unbroken electronic custody trail from laboratory receipt through analysis to report.

Test Method and Accreditation Scope Management

Environmental laboratories must ensure that every test requested by a client is within the laboratory's current NATA scope of accreditation. Software can enforce this by linking the test method selection to the current accreditation scope — so that analysts can only select test methods for which the laboratory holds current NATA accreditation. When a client requests a test that is outside the laboratory's scope, the system flags this before analysis begins, rather than discovering the gap at the reporting stage. This prevents the embarrassing situation of issuing a report claiming NATA accreditation for a test that is not in the laboratory's current scope certificate — which is both a reportable non-compliance to NATA and a potential legal issue.

Result Entry, Limit Checking, and Uncertainty

Environmental test results are entered against the sample and the test method in a controlled worksheet, with the system automatically applying limit checking — comparing each result against the relevant ADWG guideline value, NEPM investigation level, EPA licence limit, or client-specified criterion — and flagging exceedances before the report is generated. Where NATA accreditation requires reporting of measurement uncertainty alongside quantitative results, the system calculates and applies the stated expanded uncertainty automatically from the validated measurement uncertainty value for each method and analyte. Results below the method reporting limit (MRL) are recorded as "<MRL" with the MRL value, in the format required by the NEPM and EPA reporting guidelines.

NATA-Compliant Report Generation

Environmental laboratory reports must comply with ISO/IEC 17025 requirements for test report content — including laboratory name and address, unique report identifier, date of report, client identification, sample description, collection date, test method, results with units, measurement uncertainty where relevant, and a statement of scope of accreditation. NATA additionally requires the NATA accreditation number and scope to be correctly cited. Purpose-built software generates reports directly from the sample, test, and result database, using validated report templates that are themselves controlled documents — preventing the drift in report format that occurs when Word templates are modified without document control discipline. Each report is assigned a unique identifier and archived in the system, creating a permanent retrievable record of every report issued.

Chain of Custody Documentation and Client Portal

Complete chain of custody documentation — from field collection through laboratory receipt, custody transfers within the laboratory, and report issue — is maintained as part of the sample record in the system. For environmental consulting clients managing multiple sampling programmes, a client portal provides direct access to sample status, results as they are authorised, and completed reports without requiring email or telephone follow-up. This is particularly valued by environmental consultants managing urgent regulatory sampling programmes where results are needed quickly for EPA reporting deadlines. The portal also provides a record of which results the client has accessed and when, which is relevant if a question later arises about whether the client was informed of an exceedance in a timely fashion.

Audit Readiness and NATA Assessment Support

When a NATA assessor visits an environmental testing laboratory, the records that will be scrutinised include: calibration certificates for every instrument used in accredited testing; current controlled copies of all test methods and SOPs; personnel authorisation records showing who is approved to perform and sign off on each test method; proficiency testing participation records and results; CoC records for a sample of accredited tests; and a representative set of test reports demonstrating correct format and scope citation. A laboratory managing these records in a purpose-built system can retrieve any of these in minutes — sorted by instrument, by method, by person, or by sample. For a laboratory managing the same records across shared drives, email, and paper folders, NATA assessment preparation routinely consumes weeks of staff time that could be spent on testing. For guidance on what NATA assessors look for, see our NATA assessment preparation guide.

Environmental Compliance Reporting

Many environmental testing laboratories, and the consulting firms they serve, must submit periodic compliance reports to state EPAs — licence compliance reports, annual environmental reports, contaminated site remediation progress reports. Software that links laboratory results directly to regulatory reporting templates reduces the risk of transcription errors in compliance reports and creates a clear audit trail from the analytical result to the figure reported to the regulator. Results that exceed licence limits or NEPM investigation levels are automatically highlighted, ensuring that the significance of an exceedance is not missed in the transfer from laboratory report to regulatory submission.

Traceability Across Environmental Testing Projects

Environmental testing on contaminated sites and compliance monitoring programmes generates result sets that must be compared across time — groundwater monitoring results from the same bore network across five years of a remediation programme, or drinking water testing results from the same distribution system sample points over multiple years of a water quality management plan. Effective laboratory software maintains project-level traceability: all samples, results, and reports are linked to the client and project, allowing historical result sets to be retrieved, compared, and trended without manual reconstruction from archived paper records. This long-term data accessibility is essential for environmental programmes where regulatory decisions are made on the basis of trends as much as individual results. For a broader discussion of how traceability practices apply across laboratory testing disciplines, see our guide to improving traceability in laboratory testing.

Related Articles

Chain of CustodySample Management & Chain of Custody: How Testing Laboratories Track Samples from Receipt to Report Read article NATANATA Assessment Preparation: A Step-by-Step Guide for Lab Managers Read article TraceabilityHow to Improve Traceability in Laboratory Testing Read article

Frequently Asked Questions

What accreditation do environmental testing laboratories need in Australia?
Environmental testing laboratories in Australia are required to hold NATA accreditation to ISO/IEC 17025 for the specific parameters and test methods they report under accreditation. Regulators including EPA Victoria, NSW EPA, and DWER in Western Australia specify NATA-accredited methods in their environmental protection licences, site assessment guidelines, and discharge consents. For drinking water testing, laboratories are frequently required to meet NATA accreditation requirements for the specific ADWG parameters being tested. Laboratories testing for specific pollutants under statutory monitoring programmes must list the relevant test methods — such as those in Standard Methods for the Examination of Water and Wastewater (APHA) or AS/NZS 4276 — within their NATA scope certificate. Proficiency testing participation is a mandatory part of maintaining NATA accreditation, and environmental testing laboratories typically participate in NATA-approved proficiency programmes covering water, soil, and air parameters relevant to their scope.
What is a chain of custody form and why is it important in environmental testing?
A chain of custody (CoC) form is a legal document that records the identity, condition, and custody of environmental samples from the moment of collection through laboratory receipt, testing, and final reporting. In environmental testing, CoC documentation is essential for legal defensibility: if a laboratory result is used in a regulatory enforcement action, a contaminated site remediation approval, or an EPA licensing decision, the sample integrity must be demonstrable through an unbroken custody record. A complete CoC form records the sample identification number, collection date, time, and location; the collector's name and signature; preservatives added in the field; temperature at collection; the chain of handoffs between field and laboratory; and the laboratory receipt signature and condition on arrival. Any break in the custody chain — an unsigned handoff, a missing temperature record, a sample received with no accompanying CoC — can render the result inadmissible in regulatory or legal proceedings. Purpose-built laboratory software automates CoC form generation at sample login, links each sample to its field collection record, and creates an audit trail through every stage of sample handling.
How long must environmental testing records be retained?
Record retention requirements for Australian environmental testing laboratories vary by regulatory context. Under ISO/IEC 17025, the minimum general requirement is that records supporting test results be retained for a period adequate to allow for corrective action, traceability, and any legal or regulatory process — typically at least five years for test records. However, regulatory requirements routinely exceed this minimum. EPA Victoria and NSW EPA site contamination programmes often require site investigation records, including laboratory reports and chain of custody documentation, to be retained for the life of the site management or remediation programme — which may span decades. Drinking water quality records under Safe Drinking Water Act requirements in various states are typically retained for a minimum of five to seven years. Records associated with EPA licence compliance monitoring should be retained for at least the period specified in the licence or applicable regulation, commonly five years but potentially longer if the data is linked to a long-term environmental management plan or legal matter. Environmental testing laboratories should seek specific legal and regulatory advice for their jurisdiction and client types, particularly when records may be material to future contaminated land transactions or enforcement actions.
What water quality tests are required under the Australian Drinking Water Guidelines?
The Australian Drinking Water Guidelines (ADWG), published by the National Health and Medical Research Council (NHMRC), set health-based guideline values and aesthetic values for a comprehensive range of parameters across four categories. Physical parameters include turbidity, colour, taste, and odour. Chemical parameters encompass a broad range of inorganic contaminants (including aluminium, arsenic, barium, cadmium, chromium, copper, fluoride, lead, manganese, mercury, nitrate, nitrite, and selenium), organic compounds (including pesticides, disinfection by-products such as trihalomethanes and haloacetic acids, and industrial chemicals), and radionuclides. Microbiological parameters are the most critical from a public health standpoint and include thermotolerant coliforms (Escherichia coli), total coliforms, heterotrophic plate count, Cryptosporidium, Giardia, and enteric viruses. Disinfection residual monitoring — free chlorine or combined chlorine for chlorinated systems — is an ongoing operational requirement at distribution system points. The specific testing frequency and parameters required depend on the source water type, supply size, and the risk management framework established under the relevant state's Safe Drinking Water Act, which in most jurisdictions requires a registered drinking water quality management plan.
How can laboratory software improve environmental lab compliance?
Purpose-built laboratory software improves environmental lab compliance across several interconnected areas. For chain of custody management, software automates the generation of CoC forms at sample login, records each handoff with timestamp and user identity, and flags any sample received without a complete custody record — reducing the risk of admissibility challenges. For accreditation compliance, software enforces method selection from within the laboratory's current NATA scope and provides immediate visibility of any gap between what is being tested and what is accredited. For result integrity, controlled worksheets and calculated result entry with limit checking reduce transcription errors and flag out-of-range results before reports are issued. For report generation, template-driven NATA-compliant reports include all mandatory elements — accreditation number, scope statement, method references, uncertainty of measurement where required — and are generated from the same data used in laboratory calculations, eliminating re-keying between systems. For document control, the software maintains the current controlled version of each test method, SOP, and work instruction, preventing outdated procedures from being used in accredited testing. For audit readiness, a complete electronic record of every sample, every test, every result, and every report is available for immediate retrieval during NATA assessments, EPA audits, or client disputes.
OMS Software

This article is published by OMS Software — operational management software built for testing, inspection & calibration companies. Learn what OMS does →