diff --git a/areas/maintenance/220_emerald.md b/areas/maintenance/220_emerald.md
index 2ec3356..f2c1725 100644
--- a/areas/maintenance/220_emerald.md
+++ b/areas/maintenance/220_emerald.md
@@ -9,11 +9,14 @@ This document tracks maintenance and supplies for the home at 220 Emerald.
 
 ## 💧 Water Filtration System
 - **Peroxide & Salt Pellets**
-  - **Last Service:** 2026-04-26 (Added 2 bags salt pellets; Peroxide purchase pending)
+  - **Last Service:** 2026-06-05 (Added 10 bottles peroxide and 2 bags salt pellets)
   - **Check Cycle:** Monthly (Avg. refill every 1.5 months)
-  - **Next Check Due:** 2026-06-03
-  - **Current Status:** Needs replenishing (salt pellets and peroxide) — reported 2026-06-03
-  - **Next Action:** Replenish salt pellets and peroxide, then log quantity/date serviced
+  - **Next Check Due:** 2026-07-05
+  - **Current Status:** Replenished on 2026-06-05
+  - **Next Action:** Check peroxide and salt pellet levels around 2026-07-05
+  - **Service History:**
+    - 2026-06-05: Added 10 bottles peroxide and 2 bags salt pellets.
+    - 2026-04-26: Added 2 bags salt pellets; peroxide purchase pending.
 
 ## 🚰 Drinking Water Filter
 - **Last Service:** (Pending)