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I need a complete transient (surge) study for a 13-km buried pipeline that carries treated wastewater from our STP. The goal is to predict all critical pressure extremes, then turn those numbers into practical hardware locations so the line can be protected before we commission it. Scope of the study • Model the existing line geometry, elevations and flow data (I will forward the General Arrangement Drawing as soon as it is finalised). • Simulate the three key operating upsets that worry us: pump start/stop sequences, planned valve manoeuvres, and a full power-failure trip. • Identify positive and negative pressure envelopes, vapour pocket risks and column separation zones. • Translate the results into a clear markup on the GAD, showing where air-release/vacuum...

I need a skilled contractor to address a critical issue with insufficient water flow from a neighbor's pond, which is affecting both our irrigation system and overall water supply. Key Issues: - Insufficient water flow from the pond due to groundwater dependency. - The problem is impacting our irrigation system and overall water supply. Ideal Skills and Experience: - Experience with water flow and irrigation systems - Knowledge of pond management and groundwater dynamics - Problem-solving skills to develop effective solutions

I have a timed, open-book exam in Environmental Wastewater Treatment and need someone who can turn around complete, fully worked solutions in real time. The paper covers water treatment processes, waste management guidelines, and pollutant analysis techniques. Once the exam begins I’ll forward the question PDF; your task is to return clear, step-by-step answers—typed or neatly scanned—within the exam window. This is not just answer checking: I need the full derivations, supporting calculations, and any brief citations to standards or design equations so I can submit the work exactly as you provide it. Accuracy and speed are everything. When you apply, speak to your experience with environmental engineering coursework, wastewater plant design, or similar exam assistance....

Don’t miss the launch – pre-register now! Pre-register here:  The Restore Your Corner Challenge is about restoring natural areas and inspiring others to do the same. Participants have the chance to win $10,000! Freelancer.com is running the Restore Your Corner Challenge as part of the Moonshot Innovation Program. Through this Challenge, Freelancer.com wants to build a global community of people who care for nature, share inspirational stories, and create a shared library of best practices from around the world. Getting involved is simple. As a team or individual, pick a natural area near you that you think needs care – a park, forest, lake, urban precinct, river, ocean, wetland or a similar site. Carry out meaningful restoration work, film the process from...

I am looking for a concept drawing for a single family housing community on 17.77 acres and possible a 13.1 acre parcel next to it that involves storm water management. The land falls within FEMA 1% AE zones. I need to finalize a concept plan with detailed drawings showing the layout of single-family homes and flood mitigation measures. Ensure the plan includes considerations for elevated building pads and enhanced drainage solutions. Detailed site plans drawn to scale and Elevation data for proposed structures. I want to use lot sizes of 5,000 sq ft and the attached guidelines reflect that we can put up to 8.71 homes per acre. I want to assume some type of pond for storm runoff. Here is the map to the parcel: also right beside it is a 13.31 acre parcel with that I also want to work...