diff --git a/schema/build.xml b/schema/build.xml
index 1dfd64f8..30b4a792 100644
--- a/schema/build.xml
+++ b/schema/build.xml
@@ -475,7 +475,7 @@
         <echo message="    Running tests" />
         <exec executable="utplsql" resultproperty="utreturn">
             <arg value="run"/>
-         <arg value="-p=${oracle.cwms.user}.test_aq_user,${oracle.cwms.user}.test_aaa_normaluserfails,${oracle.cwms.user}.test_cwms_loc_normal_user,${oracle.cwms.user}.test_cwms_prop,${oracle.cwms.user}.test_av_location_level_ref_values"/>
+         <arg value="-p=${oracle.cwms.user}.test_aq_user,${oracle.cwms.user}.test_aaa_normaluserfails,${oracle.cwms.user}.test_cwms_loc_normal_user,${oracle.cwms.user}.test_cwms_prop,${oracle.cwms.user}.test_av_location_level_ref_values,${oracle.cwms.user}.test_level_as_ts"/>
             <arg value="-f"/><arg value="UT_COVERAGE_HTML_REPORTER"/><arg value="-o"/><arg value="${coverage.dir}/index.html" />
             <arg value="-f"/><arg value="UT_COVERAGE_COBERTURA_REPORTER"/><arg value="-o"/><arg value="${coverage.dir}/coverage_ro.xml" />
             <arg value="-f"/><arg value="UT_JUNIT_REPORTER"/><arg value="-o"/><arg value="build/tests_ro.xml" />
diff --git a/schema/src/test/test_grants.sql b/schema/src/test/test_grants.sql
index aff00cb5..d7f5dc98 100644
--- a/schema/src/test/test_grants.sql
+++ b/schema/src/test/test_grants.sql
@@ -28,6 +28,7 @@ GRANT EXECUTE ON &cwms_schema..test_cwms_data_dissem to &1;
 GRANT EXECUTE ON &cwms_schema..test_cwms_forecast to &1;
 GRANT EXECUTE ON &cwms_schema..test_cwms_xchg to &1;
 GRANT EXECUTE ON &cwms_schema..test_cwms_cache to &1;
+GRANT EXECUTE ON &cwms_schema..test_level_as_ts to &1;
 GRANT EXECUTE ON &cwms_schema..test_cwms_fcst to &1;
 GRANT EXECUTE ON &cwms_schema..test_av_ts_grp_assgn to &1;
 GRANT EXECUTE ON &cwms_schema..test_av_loc_grp_assgn to &1;
diff --git a/schema/src/test/test_level_as_ts.sql b/schema/src/test/test_level_as_ts.sql
new file mode 100644
index 00000000..3188482a
--- /dev/null
+++ b/schema/src/test/test_level_as_ts.sql
@@ -0,0 +1,152 @@
+CREATE OR REPLACE package &&cwms_schema..test_level_as_ts as
+
+--%suite(Test level-as-ts retrieval code)
+--%beforeall (setup)
+--%afterall(teardown)
+--%rollback(manual)
+
+--%test (Test RETRIEVE_LOC_LVL_VALUES3)
+procedure retrieve_level;
+
+procedure setup;
+procedure teardown;
+END test_level_as_ts;
+/
+grant execute on test_level_as_ts to cwms_user;
+CREATE OR REPLACE PACKAGE BODY &&cwms_schema..test_level_as_ts
+AS
+   --------------------------------------------------------------------------------
+   -- procedure retrieve_level
+   --------------------------------------------------------------------------------
+   PROCEDURE retrieve_level
+   IS
+      location varchar(25) := 'test_level_as_ts';
+      level_id varchar(50) := location || '.Flow.Ave.1Day.Regulating';
+      seasonal_data seasonal_value_tab_t := seasonal_value_tab_t(
+         seasonal_value_t(0, 0, 121.5),
+         seasonal_value_t(0, 15, 150.3),
+         seasonal_value_t(0, 30, 155.5),
+         seasonal_value_t(0, 45, 160.3),
+         seasonal_value_t(0, 60, 165.5),
+         seasonal_value_t(0, 75, 166.3),
+         seasonal_value_t(0, 90, 168.5),
+         seasonal_value_t(0, 105, 170.3),
+         seasonal_value_t(0, 120, 165.5),
+         seasonal_value_t(0, 135, 160.3),
+         seasonal_value_t(0, 150, 155.5),
+         seasonal_value_t(0, 165, 150.3),
+         seasonal_value_t(0, 180, 145.5),
+         seasonal_value_t(0, 195, 140.3),
+         seasonal_value_t(0, 210, 135.5),
+         seasonal_value_t(0, 225, 130.3),
+         seasonal_value_t(0, 240, 127.5),
+         seasonal_value_t(0, 255, 124.3),
+         seasonal_value_t(0, 270, 121.5),
+         seasonal_value_t(0, 285, 126.3),
+         seasonal_value_t(0, 300, 131.5),
+         seasonal_value_t(0, 315, 144.3),
+         seasonal_value_t(0, 330, 152.5),
+         seasonal_value_t(0, 345, 160.3),
+         seasonal_value_t(0, 360, 165.5),
+         seasonal_value_t(0, 375, 160.3),
+         seasonal_value_t(0, 390, 155.5),
+         seasonal_value_t(0, 405, 150.3),
+         seasonal_value_t(0, 420, 143.5));
+
+      effective_date date := TO_DATE('2026-03-07 20:00:00', 'YYYY-MM-DD HH24:MI:SS');
+      origin date := TO_DATE('2026-03-07 20:00:00', 'YYYY-MM-DD HH24:MI:SS');
+      minutes number(3) := 435;
+      units varchar2(3) := 'cms';
+      office_id varchar2(3) := '&&office_id';
+
+      specified_times ztsv_array := ztsv_array(
+         ztsv_type(TO_DATE('2026-03-07 20:00:00', 'YYYY-MM-DD HH24:MI:SS'), 0, 0),
+         ztsv_type(TO_DATE('2026-03-07 20:15:00', 'YYYY-MM-DD HH24:MI:SS'), 0, 0),
+         ztsv_type(TO_DATE('2026-03-07 20:30:00', 'YYYY-MM-DD HH24:MI:SS'), 0, 0),
+         ztsv_type(TO_DATE('2026-03-07 20:45:00', 'YYYY-MM-DD HH24:MI:SS'), 0, 0),
+         ztsv_type(TO_DATE('2026-03-07 21:00:00', 'YYYY-MM-DD HH24:MI:SS'), 0, 0),
+         ztsv_type(TO_DATE('2026-03-07 21:15:00', 'YYYY-MM-DD HH24:MI:SS'), 0, 0),
+         ztsv_type(TO_DATE('2026-03-07 21:30:00', 'YYYY-MM-DD HH24:MI:SS'), 0, 0),
+         ztsv_type(TO_DATE('2026-03-07 21:45:00', 'YYYY-MM-DD HH24:MI:SS'), 0, 0),
+         ztsv_type(TO_DATE('2026-03-07 22:00:00', 'YYYY-MM-DD HH24:MI:SS'), 0, 0),
+         ztsv_type(TO_DATE('2026-03-07 22:15:00', 'YYYY-MM-DD HH24:MI:SS'), 0, 0),
+         ztsv_type(TO_DATE('2026-03-07 22:30:00', 'YYYY-MM-DD HH24:MI:SS'), 0, 0),
+         ztsv_type(TO_DATE('2026-03-07 22:45:00', 'YYYY-MM-DD HH24:MI:SS'), 0, 0),
+         ztsv_type(TO_DATE('2026-03-07 23:00:00', 'YYYY-MM-DD HH24:MI:SS'), 0, 0),
+         ztsv_type(TO_DATE('2026-03-07 23:15:00', 'YYYY-MM-DD HH24:MI:SS'), 0, 0),
+         ztsv_type(TO_DATE('2026-03-07 23:30:00', 'YYYY-MM-DD HH24:MI:SS'), 0, 0),
+         ztsv_type(TO_DATE('2026-03-07 23:45:00', 'YYYY-MM-DD HH24:MI:SS'), 0, 0),
+         ztsv_type(TO_DATE('2026-03-08 00:00:00', 'YYYY-MM-DD HH24:MI:SS'), 0, 0),
+         ztsv_type(TO_DATE('2026-03-08 00:15:00', 'YYYY-MM-DD HH24:MI:SS'), 0, 0),
+         ztsv_type(TO_DATE('2026-03-08 00:30:00', 'YYYY-MM-DD HH24:MI:SS'), 0, 0),
+         ztsv_type(TO_DATE('2026-03-08 00:45:00', 'YYYY-MM-DD HH24:MI:SS'), 0, 0),
+         ztsv_type(TO_DATE('2026-03-08 01:00:00', 'YYYY-MM-DD HH24:MI:SS'), 0, 0),
+         ztsv_type(TO_DATE('2026-03-08 01:15:00', 'YYYY-MM-DD HH24:MI:SS'), 0, 0),
+         ztsv_type(TO_DATE('2026-03-08 01:30:00', 'YYYY-MM-DD HH24:MI:SS'), 0, 0),
+         ztsv_type(TO_DATE('2026-03-08 01:45:00', 'YYYY-MM-DD HH24:MI:SS'), 0, 0),
+         ztsv_type(TO_DATE('2026-03-08 02:00:00', 'YYYY-MM-DD HH24:MI:SS'), 0, 0),
+         ztsv_type(TO_DATE('2026-03-08 02:15:00', 'YYYY-MM-DD HH24:MI:SS'), 0, 0),
+         ztsv_type(TO_DATE('2026-03-08 02:30:00', 'YYYY-MM-DD HH24:MI:SS'), 0, 0),
+         ztsv_type(TO_DATE('2026-03-08 02:45:00', 'YYYY-MM-DD HH24:MI:SS'), 0, 0),
+         ztsv_type(TO_DATE('2026-03-08 03:00:00', 'YYYY-MM-DD HH24:MI:SS'), 0, 0)
+         );
+      ts_values ztsv_array := ztsv_array();
+      current_date date;
+      type map is table of boolean index by varchar2(50);
+      date_map map;
+   BEGIN
+      cwms_loc.CREATE_LOCATION(p_location_id=>location, p_db_office_id=>office_id,
+                               p_elevation=>120, p_elev_unit_id=>'m', p_latitude=>76.5,
+                               p_longitude=>-121.7, p_time_zone_id=>'UTC',
+                               p_vertical_datum=>'NGVD29', p_horizontal_datum=>'NAD83',
+                               p_public_name=>'Test Location', p_active=>'T');
+      commit;
+      dbms_output.put_line(level_id);
+
+      cwms_level.STORE_LOCATION_LEVEL4(p_location_level_id=>level_id, p_level_value=>null,
+                                       p_level_units=>units, p_effective_date=>effective_date,
+                                       p_interval_origin=>origin, p_interval_minutes=>minutes,
+                                       p_seasonal_values=>seasonal_data, p_office_id=>office_id,
+                                       p_fail_if_exists=>'F', p_timezone_id=>'UTC');
+      commit;
+      ts_values := cwms_level.RETRIEVE_LOC_LVL_VALUES3(p_specified_times=>specified_times,
+                                          p_location_level_id=>level_id,
+                                          p_level_units=>units,
+                                          p_office_id=>office_id);
+
+      date_map := map();
+
+      for i in 1..ts_values.count loop
+         current_date := ts_values(i).date_time;
+
+         if (date_map.exists(current_date)) then
+            raise_application_error(-20001, 'Duplicate date found: ' || current_date);
+         end if;
+
+         date_map(current_date) := true;
+      end loop;
+
+      dbms_output.put_line('No duplicate dates found in specified_times array');
+   END retrieve_level;
+   PROCEDURE setup
+   IS
+      location varchar(25) := 'test_level_as_ts';
+      office_id varchar2(3) := '&&office_id';
+   BEGIN
+      cwms_loc.CREATE_LOCATION(p_location_id=>location, p_db_office_id=>office_id,
+                               p_elevation=>120, p_elev_unit_id=>'m', p_latitude=>76.5,
+                               p_longitude=>-121.7, p_time_zone_id=>'UTC',
+                               p_vertical_datum=>'NGVD29', p_horizontal_datum=>'NAD83',
+                               p_public_name=>'Test Location', p_active=>'T');
+   END;
+   PROCEDURE teardown
+   IS
+      location varchar(25) := 'test_level_as_ts';
+      office_id varchar2(3) := '&&office_id';
+   BEGIN
+      cwms_loc.DELETE_LOCATION_CASCADE(p_location_id=>location, p_db_office_id=>office_id);
+   END teardown;
+END test_level_as_ts;
+/
+SHOW ERRORS
+/
\ No newline at end of file
diff --git a/schema/src/test/tests.sql b/schema/src/test/tests.sql
index f18ad076..60f411f0 100644
--- a/schema/src/test/tests.sql
+++ b/schema/src/test/tests.sql
@@ -58,6 +58,7 @@ show errors;
 @test_aq_user.sql;
 @test_webuser_abilities.sql;
 @test_cwms_ts_profile.sql;
+@test_level_as_ts.sql
 @test_cwms_outlet.sql;
 @test_cwms_text.sql;
 @views/test_av_ts_grp_assgn.sql;