Southern Water
Assistant Project Manager
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Assistant Project Manager
Assistant Project Manager – Reservoir Maintenance (Fixed Term, Hampshire/Isle of Wight)
Closing Date: 13/07/2026 Location: Otterbourne (with travel to the Isle of Wight as required) – Hybrid Contract Type: Fixed term, ending August 2027 Hours: 37 per week Salary: Up to £42,000 per annum (depending on skills and experience)
About the Role
We’re seeking an Assistant Project Manager to play a critical role in managing Southern Water’s Reservoir Maintenance Programme across Hampshire and the Isle of Wight. Your work will help align Southern Water with the DWI (Drinking Water Inspectorate) industry standard, ensuring all service reservoirs undergo 1-year, 3-year, and 5-year inspections as required.
As part of this programme, you’ll:
- Coordinate reservoir maintenance activities, ensuring compliance with timelines and quality standards.
- Understand and enforce reservoir isolation protocols, including both physical isolation and network compatibility.
- Collaborate with operations teams and contractors to maintain programme performance and adherence to governance processes.
- Oversee site safety and health & safety (H&S), including contractor management and risk reviews.
Key Responsibilities
Programme Delivery & Coordination
- Monitor and forecast reservoir inspections to ensure targets are met.
- Oversee reservoir-related maintenance works, liaising with contractors to guarantee on-time delivery.
Reservoir Operations & Compliance
- Conduct reservoir inspections, including contact tanks, break pressure tanks, and all water storage assets.
- Ensure safety isolation protocols align with operational and network demands.
- Develop emergency isolation plans, detailing valve operations, environmental constraints, and stakeholder engagement.
- Produce and validate risk assessments, method statements, and single contact orders (SCOs) for reservoir activities.
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Contractor Management & Document Control
- Manage small-scale enabling works required for reservoir isolation.
- Validate contractor progress and escalate risks related to programme timelines, cost, and quality.
Independent Assignments
- Execute tasks assigned by senior project managers, including additional operational and technical assignments.
Attributes & Requirements
Essential Skills
- Hands-on experience with valve operations and familiarity with water processes/networks.
- Strong IT proficiency and organisational skills to meet tight deadlines.
- Ability to prioritise tasks efficiently and work independently.
Preferred Experience
- Project management experience (or a strong operational background).
- Working within hybrid/remote environments.
About Southern Water
Driving forward Britain’s water industry, Southern Water is committed to enhancing resilience, sustainability, and service excellence through a £7.8 billion investment across 2025–2030. This role presents an opportunity to contribute to a generational transformation—delivering strategic solutions, supporting cutting-edge projects, and shaping a brighter future for water infrastructure.
Southern Water fosters innovation and diverse thinking, valuing perspectives that add unique value to the team.
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“At Southern Water, we believe diverse perspectives drive innovation. If you’re passionate about making a difference, we’d love to hear from you—regardless of whether every requirement is checked.”
Our Commitment to Diversity
We welcome applicants from all backgrounds and do not discriminate based on race, ethnicity, gender, sexual orientation, age, disability, or religion.
If you require reasonable adjustments during recruitment (e.g., accessibility support, interview arrangements), please let us know.
Important Additional Information
- Pre-employment checks include identity verification, right-to-work status, criminal records (DBS), and employment/education history review over the past three years.
- Security vetting required: Some positions entail higher-level security checks. Offers may be withdrawn if security standards are not met.
How We Make an Impact
Our purpose is ambitious—Water for Life. We equip teams to swiftly resolve 24/7 incident support demands, ensuring customers always receive our best service.
By joining Southern Water, you’ll join a dedicated, collaborative team—where supporting others (particularly during incidents) is core to our culture. Overcoming challenges together remains central to our mission.
Interested?
This role aligns with our values—driven by purpose, innovation, and making a difference. Flexibility may be possible, so engage to explore options that work for you.
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