Yep, same thing
AFKBRBChocolate
They say it that way because in the US that's how it's pronounced. The argument that it's pronounced differently in other countries, so the US way is wrong, is stupid. Even within a language/country, there are regional dialects.
I grew up in the US, but my dad was from England. There were lots of times I said a word the way I had always heard my dad say it, only to have people correct my mispronunciation. The one that pops into my head was capillaries (the little blood vessels). My dad always said ca-PILL-ah-rees, not CA-puh-lar-rees. Neither is wrong, it's just pronounced differently here and there.
So was it a government (state or federal) water treatment plant? If so, I can tell you how it happened. The government contracting agencies have boilerplate text they're supposed to add to contracts to make sure salient requirements get flowed. They're supposed to delete or tailor anything that doesn't make sense, but the contracts people aren't usually very technical. We had requirements flowed to us about password management and account monitoring, but no one logs into a rocket engine or a torpedo. When we'd point it out, they'd say "oops, we should have deleted that."
Probably a bleed-over from the embedded side. Spent a lot of years working embedded control systems for NASA and DoD - bare metal systems, often interrupt driven - and it was common to have 50% margin requirements. They know those systems will grow over time, and they often have lifespans measured in decades.
I believe it's the domain for Malaysia.