Cedar Ridge sat on a gradual slope, and the homes near the western edge were considerably higher than the surrounding streets.
But another pattern bothered me.
After every major rainfall, several streets in the lower part of the neighborhood flooded.
The HOA always blamed residents.
"Blocked private drains."
"Improper landscaping."
"Excessive irrigation."
"Unauthorized grading."
The explanations changed.
The flooding didn't.
I pulled out an old map from my county engineering days.
Cedar Ridge had been built on land that naturally drained toward a shallow basin east of the neighborhood.
That basin had once been open grassland.
Then the developer constructed a large retention pond.
At least, that's what the plans showed.
The problem was that I had driven past the pond many times.
It didn't look large enough.
I decided to investigate.
I walked around the eastern edge of the community with my phone.
The retention pond was surrounded by a decorative fence.
At the bottom of the slope, I noticed something I'd never seen before.
A concrete drainage channel disappeared beneath a mound of dirt.
It looked recently filled.
I took photographs.
That evening, I downloaded fourteen months of weather data.
Then I created a spreadsheet.
Rainfall totals.
Storm duration.
Wind direction.
Flood complaints.
HOA maintenance notices.
Everything I could find.
The correlation became clearer.
Whenever rainfall exceeded approximately three inches within twenty-four hours, the lower streets flooded.
But the HOA's maintenance reports claimed the drainage system was functioning normally.
That made no sense.
I called my former colleague, Marcus Reed.
Marcus was still working for the county engineering department.
"I've got a question," I said.
"That usually means trouble."
"I've been measuring rainfall at my house."
"Still playing meteorologist?"
"Something like that."
I sent him the data.
There was a long pause.
Finally, he said, "Where did you get these numbers?"
"My weather station."
"They're interesting."
"Interesting how?"
"The rainfall totals are higher than the nearest official station."
"I know."
"Your station may be right."
I sat up.
"What do you mean?"
"I mean don't assume the official station is representative of your neighborhood."
"Why?"
"Because terrain matters. But more importantly, your data appears consistent."
"Could the drainage system be undersized?"
Marcus hesitated.
"Possibly."
"Can you check the original plans?"
"I can look at public records."
"Please do."
Another pause.
Then he said something that changed everything.
"Daniel, why are you asking me about Cedar Ridge now?"
"Because the HOA wants me to remove my weather station."
Marcus became quiet.
"That's strange."
"That's what I thought."
"Don't remove it."
I smiled.
"I wasn't planning to."
The second letter arrived two days later.
This time, the language was different.
It accused me of installing "unauthorized monitoring equipment."
I stared at that phrase.
Monitoring equipment.
The weather station didn't monitor people.
It monitored the atmosphere.
I called Lorraine again.
"Why does the letter call it monitoring equipment?"
"Because that's what it is."
"Monitoring what?"
"Environmental conditions."
"That's the purpose of a weather station."
"Exactly."
"So what's the problem?"
"The board doesn't want private environmental monitoring equipment operating inside the community."
That sentence stayed with me.
Private environmental monitoring.
I asked, "Does the HOA operate its own weather station?"
She paused.
"That's irrelevant."
"Does it?"
"We have community facilities."
"That's not an answer."
"Mr. Harper, you have forty-eight hours."
I hung up.
Then I checked the HOA website.
There was a page called Cedar Ridge Stormwater Management.
It stated that the HOA monitored rainfall and drainage conditions to ensure the neighborhood complied with county requirements.
I read it twice.
The HOA was collecting environmental information.
Yet my private weather station was suddenly a problem.
I called Marcus.
"I think the HOA has a weather station."
"Where?"
"I don't know."
"Look around the clubhouse."
I drove there.
Behind the clubhouse stood a tall metal pole.
At the top was an instrument enclosure.
I photographed it from the parking lot.