---
schema_version: "secwatch.filing_event.v1"
accession: "0001410636-26-000109"
form_type: "8-K"
ticker: "AWK"
cik: "0001410636"
company_name: "American Water Works Company, Inc."
filed_at: "2026-07-01T20:23:34+00:00"
generated_at: "2026-07-01T20:25:05.592081+00:00"
event_type: "regulatory"
sentiment: "neutral"
materiality_score: 0.6
calibrated_materiality_score: 0.6
confidence: "high"
source: SEC EDGAR
---

# Missouri American Water files $179M rate request with MoPSC, driven by $1.6B capex plan

## Summary
- Annualized incremental revenue of ~$179M sought, plus ~$32M in infrastructure surcharges ($18M pending approval).
- Request based on 10.50% ROE, 50.3% equity / 49.7% debt capital structure.
- Driven by ~$1.6B in capital investments from June 2025 through May 2028 for water/wastewater upgrades.
- If approved, new rates expected to take effect June 2027; average St. Louis County bill up ~$23/month.
- Investments include 140 miles of pipeline replacement, lead service line removal, PFAS treatment upgrades.

## SEC filing metadata
- accession: 0001410636-26-000109
- form_type: 8-K
- ticker: AWK
- cik: 0001410636
- company_name: American Water Works Company, Inc.
- filed_at: 2026-07-01T20:23:34+00:00
- event_type: regulatory
- sentiment: neutral
- materiality_score: 0.6
- calibrated_materiality_score: 0.6
- confidence: high
- sec_items: 8.01, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1410636/000141063626000109/0001410636-26-000109-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1410636/000141063626000109/awk-20260701.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001410636-26-000109
- JSON: https://secwatch.observer/filing/0001410636-26-000109.json
- Plain text: https://secwatch.observer/filing/0001410636-26-000109.txt

This AI-assisted summary is a reading aid. Review the linked SEC EDGAR filing before relying on any specific claim.