diff --git a/tests/eho_by_ops.sql b/tests/eho_by_ops.sql
index 250b527..7dd7c3a 100644
--- a/tests/eho_by_ops.sql
+++ b/tests/eho_by_ops.sql
@@ -12,18 +12,20 @@ WITH find_missing AS (
   SELECT op.op_id,
     op.batch_run_date,
     op.batch_id
-  FROM {{ ref('stg_history_operations') }} op
+  FROM {{ ref('stg_history_operations') }} cd ..
   LEFT OUTER JOIN {{ ref('enriched_history_operations') }} eho
     ON op.op_id = eho.op_id
   WHERE eho.op_id IS NULL
     -- Scan only the last 24 hours of data. Alert runs intraday so failures
     -- are caught and resolved quickly.
     AND TIMESTAMP(op.batch_run_date) >= TIMESTAMP_SUB('{{ dbt_airflow_macros.ts(timezone=none) }}', INTERVAL 1 DAY )
+    AND TIMESTAMP(op.batch_run_date) < TIMESTAMP_SUB('{{ dbt_airflow_macros.ts(timezone=none) }}', INTERVAL 1 HOUR )
 ),
 find_max_batch AS (
   SELECT MAX(batch_run_date) AS max_batch
   FROM {{ ref('stg_history_operations') }}
   WHERE TIMESTAMP(batch_run_date) >= TIMESTAMP_SUB('{{ dbt_airflow_macros.ts(timezone=none) }}', INTERVAL 1 DAY )
+    AND TIMESTAMP(batch_run_date) < TIMESTAMP_SUB('{{ dbt_airflow_macros.ts(timezone=none) }}', INTERVAL 1 HOUR )
 )
 SELECT batch_run_date,
     batch_id,