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The City of Signal Hill has a set of Standard Plans for construction in the City. These plans include the Table of Contents (PDF), General Standards 100 Series (PDF), Title, Plan, and Profile (PDF), Street Standards 200 Series (PDF), Sewer Standards 300 Series (PDF) (for reference only*), and Water Standards 400 Series (PDF).
* Signal Hill sewers are owned and operated by the Los Angeles County Sanitation District (PDF).