---
schema_version: "secwatch.filing_event.v1"
accession: "0001410636-24-000207"
form_type: "8-K"
ticker: "AWK"
cik: "0001410636"
company_name: "American Water Works Company, Inc."
filed_at: "2024-12-06T23:59:59+00:00"
generated_at: "2026-05-29T06:15:48.791076+00:00"
event_type: "regulatory"
sentiment: "neutral"
materiality_score: 0.75
calibrated_materiality_score: 0.75
confidence: "high"
source: SEC EDGAR
---

# Illinois American Water gets $110.6M annualized rate increase from ICC

## Summary
- ICC approved $110.6M revenue increase (vs. $140M step 1 requested; $16M step 2 denied). Effective Jan 1, 2025.
- Authorized ROE 9.84%, rate base $2.19B, equity 49% vs. prior 9.78% ROE on $1.64B rate base.
- Increase driven by ~$557M capital investments in 2024-2025, including 44 miles of pipeline replacement.
- Typical residential water bill +$16/mo; wastewater +$8.50/mo.
- ICC also approved expansion of income-based discount tariff.

## SEC filing metadata
- accession: 0001410636-24-000207
- form_type: 8-K
- ticker: AWK
- cik: 0001410636
- company_name: American Water Works Company, Inc.
- filed_at: 2024-12-06T23:59:59+00:00
- event_type: regulatory
- sentiment: neutral
- materiality_score: 0.75
- calibrated_materiality_score: 0.75
- confidence: high
- sec_items: 8.01, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1410636/000141063624000207/0001410636-24-000207-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1410636/000141063624000207/awk-20241205.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001410636-24-000207
- JSON: https://secwatch.observer/filing/0001410636-24-000207.json
- Plain text: https://secwatch.observer/filing/0001410636-24-000207.txt

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