Biocides play a vital role in controlling microbial growth within water systems, helping to prevent Legionella and other harmful bacteria. Without effective treatment, water systems can become breeding grounds for dangerous pathogens, posing serious health and compliance risks.
Regular biocide testing is essential to ensure that treatment remains effective, safeguarding water quality and system integrity. At Marlowe Environmental Services, we provide comprehensive biocide testing services tailored to the needs of various industries. Our expert team ensures your water treatment programme remains effective, compliant, and optimised for long-term performance.
Biocide testing is essential for ensuring that water treatment programmes remain effective in controlling microbial growth, including Legionella, Pseudomonas, and other harmful bacteria. Over time, biocides can degrade or become ineffective due to factors such as pH fluctuations, organic loading, or microbial resistance. Regular testing helps to:
Verify that biocide levels remain within the effective range.
Detect potential biocide resistance and ensure continued microbial control.
Ensure compliance with UK water safety regulations, such as HSG274, HTM 04-01, and BSRIA BG50.
Biocide testing is essential for ensuring that water treatment programmes remain effective in controlling microbial growth, including Legionella, Pseudomonas, and other harmful bacteria. Over time, biocides can degrade or become ineffective due to factors such as pH fluctuations, organic loading, or microbial resistance. Regular testing helps to:
There are two main types of biocides used in water treatment:
The choice of biocide depends on the specific water system, contamination levels, and regulatory requirements.
Biocide testing must comply with strict regulations to ensure water safety and public health. Key UK and international standards include:
At Marlowe Environmental Services, we provide expert biocide testing services to help businesses maintain safe, compliant, and efficient water treatment programmes.
At Marlowe Environmental Services, our biocide testing services are designed to ensure your closed-loop and water systems remain protected against microbial growth, corrosion, and biofilm, key threats to system integrity and compliance.
What We Offer:
Microbial & Chemical Monitoring
Regular sampling and lab analysis to measure biocide concentration and detect harmful microbes like Legionella, Pseudomonas, and other bacteria
Effectiveness Validation
Confirm that dosing levels of biocides are sufficient to control biofilm and microbial presence, preventing corrosion and system blockages
Biocide Sensitivity Testing
Identify when microbial resistance begins emerging and guide the selection of more effective treatment chemicals .
Biodispersant Regimes
Test for the presence of stubborn biofilms and recommend combined biocide-plus-dispersant treatments to fully clear these contaminants
Glycol & Chemistry Analysis
Ensure glycol-based systems maintain correct chemistry levels to suppress microbial growth and prevent corrosion-related issues
Supported by Smart Tools:
Our testing is backed by Hevasure- and Hydro‑Net-enabled remote monitoring, enabling continuous tracking and instant alerts for out-of-spec levels, ensuring you can act swiftly to maintain system integrity.
At Marlowe Environmental Services, we offer continuous monitoring solutions that provide real-time tracking and control of critical water parameters, enabling proactive adjustments and ensuring optimal system performance.
Powered by advanced technologies like Hevasure’s award-winning platform, our remote monitoring systems collect live data on key factors such as dissolved oxygen, pressure, temperature, conductivity, inhibitor levels, and corrosion rates. This allows facilities managers to detect deviations before they escalate into costly breakdowns or non-compliance.
Benefits of our continuous monitoring include:
Immediate Alerts
Automated notifications highlight out-of-spec parameters, prompting instant corrective action
Preventative Maintenance
Early detection of issues like corrosion or oxygen ingress helps extend asset life and reduce energy usage
Regulatory Compliance
Supports BG29/2020 and BG50/2013 standards by providing documented evidence of water quality and system integrity
Our solutions seamlessly integrate into both new and existing systems, with flexible deployment packages such as Hevasure Premier, Dashboard, Health Check, and Training models, so you can choose the service level that aligns with your operational needs.
Ensuring the effectiveness of biocides in your water systems is essential for preventing microbial growth, maintaining regulatory compliance, and protecting public health. Marlowe Environmental Services provides expert biocide testing services tailored to meet your industry’s unique needs.
Accurate and Reliable Testing
Advanced methods to verify biocide efficacy
Compliance Support
Helping you meet HSG274, HTM 04-01, and BSRIA BG50 standards.
Tailored Solutions
Customised strategies for commercial, industrial, and healthcare facilities.
Expert Consultation
Access to leading water treatment specialists for ongoing guidance.
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