Groundwater & Surface Water Monitoring – Sydney & Blue Mountains

Groundwater and surface water monitoring to support development, manage risk, and meet EPA and planning requirements.

Water Monitoring Services – Sydney & Blue Mountains

At Confluence Environmental, we provide expert groundwater and surface water monitoring services throughout Sydney, the Blue Mountains, and surrounding regions. Our water assessments support development applications, EPA licensing, contaminated land projects, and compliance with NSW environmental regulations.

Whether you’re managing a subdivision, building near a sensitive catchment, or remediating a contaminated site, we deliver accurate data and clear reporting to help you meet your environmental responsibilities.

Why Water Quality Monitoring Matters in Sydney & the Blue Mountains

Monitoring surface water and groundwater is essential for:

  • Development applications (DAs) and environmental impact assessments

  • Contaminated land investigations and site remediation

  • Meeting EPA licence conditions and POEO Act requirements

  • Waste classification and resource recovery

  • Infrastructure and industrial risk management

  • Salinity and acid sulfate soil (ASS) assessments

  • Protecting catchments, waterways, and sensitive ecosystems

Our qualified consultants provide reliable, regulator-ready results — helping you identify risks, demonstrate compliance, and take the right action with confidence.

Customised Water Monitoring Programs

Every site has unique risks, regulatory requirements, and project goals. We tailor our programs to suit your location, consent conditions, and environmental context.

Groundwater Monitoring – Sydney & Blue Mountains

We provide end-to-end groundwater assessment services:

  • Installation and gauging of groundwater monitoring wells (bores)

  • Low-flow purging and precise sample collection

  • Field testing: pH, electrical conductivity (EC), dissolved oxygen, redox, turbidity, temperature

  • Lab analysis for metals, hydrocarbons, nutrients, PFAS, and other contaminants

  • Seasonal groundwater fluctuation monitoring

  • Plume delineation and groundwater impact assessment

  • Comparison against NEPM (ASC) and ANZG 2018 Guidelines

Ideal for:

  • EPA-licensed premises

  • Planning approvals and subdivision DAs

  • Fuel storage or remediation sites

  • Salinity and water table investigations

Surface Water Monitoring – Western Sydney to the Blue Mountains

We monitor surface water across creeks, wetlands, detention basins, and stormwater systems:

  • Sampling for water quality, sediment, and aquatic impact

  • Real-time field parameter measurements

  • NATA-accredited lab analysis of physical, chemical, and biological indicators

  • Flow conditions and hydrology assessments

  • Comparison with ANZG Guidelines or council standards

  • Impact monitoring near sensitive catchments or biodiversity offset areas

Used for:

  • Stormwater discharge monitoring

  • Construction near protected waterways

  • Council compliance and infrastructure projects

  • Contaminant runoff and flood response programs

Regulatory & Compliance Reporting

We produce professional, audit-ready reports for submission to:

  • NSW EPA (Environmental Protection Licence compliance)

  • Local councils and private certifiers

  • Environmental auditors and planning authorities

  • Contaminated land remediation consultants

We ensure every report aligns with current guidelines, including the POEO Act, NEPM, and relevant DA conditions.

Who We Work With in Sydney and the Blue Mountains

We support a broad range of clients across Western Sydney and the Greater Blue Mountains area:

  • Residential and commercial developers

  • Industrial operators and EPA-licensed facilities

  • Infrastructure contractors and planners

  • Local councils and state agencies

  • Quarries, landfills, and waste processors

  • Private landowners in sensitive zones or near waterways

Whether you need a one-off baseline assessment or long-term compliance monitoring, we help you stay ahead of environmental risk.

Why Choose Confluence Environmental?

  • Local knowledge of Sydney’s Western Suburbs, Penrith, Katoomba, and surrounding areas

  • Qualified environmental professionals with extensive water monitoring experience

  • NATA-accredited laboratory testing and field methodologies

  • Programs fully compliant with EPA, POEO Act, ANZG, and local planning frameworks

  • Fast turnaround, clear reporting, and competitive pricing

  • Practical guidance — not just data — to help you make informed decisions

We’re here to help you meet your obligations, protect your project, and safeguard the local environment.

Where We Operate

We provide groundwater and surface water monitoring services across:

  • Sydney (Western Sydney, Greater Sydney, Inner West)

  • Blue Mountains (Penrith, Springwood, Katoomba, Lithgow)

  • Central Coast

  • Illawarra and South Coast

  • Mid North Coast and regional NSW

Need expert advice?

Get in touch to organise a site-specific water monitoring plan tailored for your project in Sydney or the Blue Mountains. Fast response, expert advice, and trusted compliance support.

Call 0493 042 642 or drop us an enquiry below to request a quote or consultation.

A Confluence Environmental scientist collects a sample of water for NATA accredited analysis in NSW

Frequently Asked Questions (FAQ) - Groundwater & Surface Water Monitoring

Why is groundwater and surface water monitoring important?

Monitoring helps detect and manage environmental risks early. It supports:

  • Early identification of groundwater or surface water contamination from industrial, urban, or agricultural sources

  • Protection of sensitive ecosystems, aquatic life, and drinking water supplies

  • Compliance with NSW environmental regulations, including EPA licence conditions, planning approvals, and the Protection of the Environment Operations Act 1997 (POEO Act)

  • Baseline data collection before development or remediation activities

What are the common sources of water contamination?

Typical causes of water quality impacts in NSW include:

  • Leaking underground petroleum storage systems (UPSS), especially at fuel stations

  • Chemical spills or discharges from industrial sites

  • Stormwater runoff carrying sediment, nutrients, pesticides, or hydrocarbons

  • Landfill leachate or contaminated fill material

  • Disturbance of acid sulfate soils, releasing sulfuric compounds into water systems

How often should water quality monitoring be conducted?

Monitoring frequency depends on your site’s regulatory requirements, contamination risk, and project phase. Common scenarios include:

  • Quarterly or annual sampling for routine environmental compliance or long-term site monitoring

  • Monthly or rainfall-triggered sampling for high-risk sites or active remediation areas

  • Short-term intensive programs for due diligence, development approvals, or baseline studies

We tailor every monitoring program to suit your site's conditions and obligations.

What happens if contamination is detected in groundwater or surface water?

If results show elevated levels of pollutants (e.g. heavy metals, hydrocarbons, nutrients):

  • A Detailed Site Investigation (DSI) may be required to define the extent and risk

  • A Remediation Action Plan (RAP) may be developed to address contamination

  • Ongoing water monitoring and reporting is usually required to track progress and ensure regulatory compliance

Confluence Environmental can guide you through each step of this process.

Can Confluence Environmental help with EPA and council compliance?

Absolutely. We offer:

  • Site-specific water monitoring programs

  • Sampling and laboratory analysis using approved methods

  • Regulatory reporting suitable for NSW EPA, local councils, and water authorities

  • Expert guidance on interpreting results and managing environmental obligations

Our team ensures you stay compliant — and avoid costly delays, penalties, or remediation missteps.