Okay, this sounds like a serious concern. Let's break down why this is likely a code violation and how to proceed.

Why This Is Likely a Code Violation

Here's a breakdown of the potential NEC violations, and why the inspector's stance is questionable: NEMA Enclosure Rating and Wet Locations (NEC 314.15, 314.40(A), Articles 100 and 406.9(B)) Watertight Does Not Equal Rainproof: While "watertight" implies protection against water ingress, it doesn't automatically guarantee protection against driving rain entering from above, especially through cable entries. Watertight enclosures do not have the same rating as Rainproof enclosures. Wet Locations: Water parks, especially those with outdoor features, are wet locations. NEC Article 100 defines a wet location as "Installations under ground or in concrete slabs or masonry in direct contact with the earth; in locations subject to saturation with water or other liquids, such as vehicle washing areas; and in unprotected locations exposed to weather." During a rainstorm, the area around these switch boxes would be considered a wet location. Enclosure Requirements: NEC 314.15 states that in wet locations, enclosures must be identified for use in wet locations. NEMA 3R enclosures (and higher numbers) are often used. "Watertight" by itself isn't sufficient. NEMA 4 and 4X enclosures are watertight, but the installation also matters. Rainproof Requirements: NEC 314.40(A) specifies that boxes in wet locations must be designed to prevent water from entering or accumulating in the box. Receptacles in Wet Locations: If any receptacles are connected to these switch boxes, they must comply with NEC 406.9(B) which requires weatherproof enclosures when installed in wet locations. MC Cable Installation and Orientation (NEC 330.30, 300.5(G)) Cable Support: NEC 330.30 outlines how MC cable must be supported. Improper support can lead to strain on the connections at the box. Water Entry Point: Running MC cable vertically downward into the top of an enclosure creates a direct path for water to follow. The MC cable's jacket and construction are not designed to be a watertight barrier. Sealing Requirements: Although not always required, depending on the specific cable and location, NEC 300.5(G) discusses the need to seal raceways and cables entering enclosures below grade. While this may be below grade, the principle applies: water follows the path of least resistance. Listing and Labeling (NEC 110.3(B)) Proper Use: Equipment must be used in accordance with its listing and labeling instructions. If the enclosure or MC cable isn't specifically listed for vertical, top-entry installation in a wet location exposed to driving rain, it's a violation. Workmanship (NEC 110.12) Neat and Workmanlike Manner: This is a general requirement, but poorly installed MC cable entries (especially those inviting water ingress) are arguably a violation.

Why the Inspector Might Be Wrong (and What to Do About It) Misinterpretation of Code

The inspector may be focusing solely on the "watertight" aspect and overlooking the overall system installation and environment.

Pressure to Approve

Sadly, sometimes inspectors are pressured to approve projects quickly.

Lack of Expertise

It's possible the inspector isn't fully aware of the nuances of wet location installations.

Steps to Take1. Document Everything (You've Started Well) Take more pictures and videos during and after a rain event. Capture the water running down the MC cable and entering the boxes. This is critical evidence. Note Dates and Times

Document when you observed the water ingress.

Identify the Equipment

If possible, note the manufacturer and model numbers of the switch boxes and MC cable.

Identify the circuits within the electrical boxes2. Write a Formal Complaint (and Keep Records) Draft a detailed letter outlining the safety concerns, the specific NEC violations (cite the sections listed above), and the fact that you witnessed water entering the boxes. Include the photographic and video evidence. Send the letter via certified mail with return receipt requested to the following: The inspector The inspector's supervisor at the local building department The water park's management Keep copies of everything.3. Escalate if Necessary State Electrical Board

Contact the state electrical board or licensing agency. Inspectors are often licensed, and you can file a complaint against their license.

Consumer Protection Agency

Report the safety hazard to your state or local consumer protection agency.

OSHA (Occupational Safety and Health Administration)

If employees are at risk, consider contacting OSHA.4.

Consider a Second Opinion (Electrical Engineer/Expert) Hire a qualified electrical engineer to inspect the installation and provide a written report detailing the code violations. This report can be powerful evidence.

Important Safety Considerations Stay Away

Until the issue is resolved, avoid touching or going near the switch boxes during or after rain events.

Inform Others

Warn others (especially children) about the potential danger.

If You Suspect Immediate Danger

If you believe there's an imminent risk of shock, contact the fire department or emergency services immediately.

Possible Solutions Weatherproof Enclosures

Replace the switch boxes with NEMA 3R, 4, or 4X enclosures that are specifically listed for wet locations and top-entry cable installations.

Drip Loops

Create drip loops in the MC cable before it enters the box. This can help divert water away from the entry point.

Sealing Fittings

Use sealing fittings (compression connectors with a sealing ring) where the MC cable enters the box. This helps create a watertight seal.

Cable Orientation

If possible, re-route the MC cable to enter the boxes from the side or bottom, which is less likely to allow water ingress.

Cable Type Change

Consider switching to a different wiring method suitable for wet locations, such as PVC conduit with properly sealed fittings.

Key Takeaways Your concerns are valid. Water ingress into electrical enclosures is a serious safety hazard. Don't rely solely on the inspector's opinion, especially if you believe it's incorrect. Document everything, escalate if necessary, and prioritize safety. Remember, the ultimate goal is to protect people from electrical shock.Good luck, and I hope you can get this issue resolved quickly and safely. Flag for review