How Mountain View Handles Environmental Rules: A Practical Guide
Mountain View maintains 160 local ordinances across all categories, and 4 of those deal specifically with environmental rules. Here is a breakdown of what the city actually requires, what is prohibited, and where Mountain View falls on the strict-to-permissive spectrum compared to other cities.
Flood Elevation Requirements
Mountain View treats building below the base flood elevation as an exception, not a default: it takes a rare variance to do it, and the floodplain administrator must warn the owner in writing that going below code elevation can push federal flood insurance premiums as high as $25 per $100 of coverage.
Key details: Certifier required: CA-licensed land surveyor or civil engineer. Certification points: At lowest-floor placement and before final inspection. Below-BFE construction: Allowed only via rare variance. Insurance premium warning: Up to $25 per $100 of coverage. Variance decision body: City Council.
Constructing the lowest floor below the base flood elevation without an approved variance is a violation of Chapter 48 and a misdemeanor under Section 48.18.05. Even with a variance, failing to document the mandated elevation certification from a licensed surveyor or engineer at lowest-floor placement and at final inspection under Section 48.14.20 leaves a building presumed noncompliant under Section 48.18.05.
Erosion Control
Every construction project in Mountain View that disturbs less than one acre must manage storm water and erosion on site under City Code Sec. 8.70.05, using retention basins, filtered discharge, or other city-approved barriers. Sites must also meet the year-round pollutant control standards of Chapter 35 Sec. 35.33.11.1(t), covering erosion, sediment and runoff control through every phase of construction.
Key details: Threshold: Projects disturbing under 1 acre of soil. Governing section: City Code Sec. 8.70.05. Required methods: Retention basins, filtered discharge, or wattles. Year-round standard: Chapter 35 Sec. 35.33.11.1(t) pollutant controls. Ends when: Site stabilized by landscaping or permanent controls.
A site that discharges sediment or storm water onto adjacent property without an approved retention basin, filter barrier or Chapter 35 pollutant control plan is out of compliance with Sec. 8.70.05 and can be held at plan check or stopped during grading until corrective measures are installed. Inspectors from the Building Division and Public Works Department may require immediate installation of a barrier system or wattle before work resumes.
Flood Zones
Mountain View requires a floodplain development permit from the floodplain administrator before any construction, grading, filling or similar development in a flood hazard area established under the FEMA Flood Insurance Rate Maps. No permit issues until every applicable code and regulation is satisfied.
Key details: Permit authority: Floodplain administrator (Public Works Dept.). Flood maps used: Santa Clara County FIS/FIRMs, adopted by reference. Permit validity: Void if work not started within 180 days. Violation classification: Misdemeanor (Sec. 48.18.05). Records location: Public Works Dept., 500 Castro Street.
Constructing, locating, extending, converting or altering a structure or land in a flood hazard area without the required floodplain development permit, or in conflict with an issued permit, is deemed a violation of Chapter 48 and constitutes a misdemeanor under Section 48.18.05. The floodplain administrator may also suspend or revoke a permit issued on inaccurate or incomplete information under Section 48.10.30.
Stormwater Management
Mountain View bans dumping anything but stormwater into curbside gutters, storm drains and creeks under City Code Sec. 35.32.3.1. The fire chief enforces the rule, and violators face civil penalties up to $25,000 per day under Fish and Game Code Section 5650.1 for spills that reach a storm drain or waterway.
Key details: Enforcing agency: Mountain View Fire Department (fire chief). Max civil penalty: $25,000 per day per violation. Penalty statute: Fish and Game Code Section 5650.1. Inspection frequency: Twice yearly for permanent stormwater measures. Reporting duty: Immediate report of spills to fire chief.
Violating Sec. 35.32.3 exposes a discharger to civil penalties of up to $25,000 per day per violation under Fish and Game Code Section 5650.1, plus the city's cost-recovery authority under Sec. 35.30.4 for any expense, loss or damage the discharge causes to the sewer or storm system. Courts weigh the toxicity and volume of the discharge, harm caused, cleanup effort, ability to pay and prior violation history when setting the penalty.
The Bottom Line
Mountain View's environmental rules rules are a mixed bag. Some areas are strict, others are relaxed, and the details matter. The best approach is to check the specific rule that applies to your situation rather than assuming Mountain View is broadly strict or permissive.
This guide is based on Mountain View's current municipal code. Local rules can and do change, so check the individual ordinance pages for the latest details, penalties, and FAQs.