The Model Water Efficient Landscape Ordinance (MWELO) stands as a cornerstone regulation in California, aiming to foster water efficiency, soil vitality, and sustainable landscaping practices in new constructions and landscape rehabilitation projects. This article delves into the critical components of soil reports and management plans concerning MWELO compliance, highlighting their significance in promoting sustainability and adherence to regulatory standards.
Soil Management Reports (WELO)
At the heart of MWELO compliance lies the Soil Management Report, commonly referred to as WELO. This report serves as a pivotal guide for landscape projects, offering intricate details, sampling instructions, and personalized recommendations for organic or conventional amendments. It is imperative for landscape architects and contractors to meticulously adhere to the WELO recommendations to ensure their projects align with regulatory requirements while fostering sustainable landscaping practices.
Soil Testing and Amendments
Central to the soil management process is comprehensive soil testing, pivotal for understanding soil composition and determining suitable amendments for landscape projects. MWELO mandates specific amendments, such as the incorporation of compost at a minimum rate of four cubic yards per 1,000 square feet of permeable area, extending to a depth of six inches into the soil. Additionally, a minimum three-inch layer of mulch is required on all exposed soil surfaces within planting areas.
Compost and Mulch Use
MWELO emphasizes the utilization of compost and mulch in landscape installations to enhance soil health and water retention. Requirements stipulate the incorporation of compost into the soil at specified rates and depths, with exemptions granted to soils exhibiting sufficient organic matter content. Moreover, organic mulch materials derived from recycled or post-consumer sources take precedence over inorganic or synthetic alternatives, further bolstering soil health and water conservation efforts.
Soil Management Report Submission
Compliance with MWELO necessitates the submission of a Soil Management Report, integrated within the Landscape Documentation Package. This package encompasses crucial project information, landscape design plans, and other requisite documents, ensuring comprehensive compliance with regulatory standards.
Learn more about MWELO from the DWR here.
Conclusion
In conclusion, soil reports and management plans serve as linchpins in ensuring MWELO compliance and fostering sustainability in California. By adhering to WELO guidelines and meeting MWELO requirements for compost, mulch, and soil management reporting, landscape professionals can craft landscapes that not only meet regulatory standards but also promote water efficiency, soil vitality, and erosion control. Embracing these practices paves the way for the creation of enduringly beautiful and environmentally conscious landscapes across the Golden State.