diff --git a/src/server/test/web/readingsData/expected_line_group_ri_15-20_mu_kWh_gu_kWh_st_2022-08-25%00#00#00_et_2022-10-25%00#00#00.csv b/src/server/test/web/readingsData/expected_line_group_ri_15-20_mu_kWh_gu_kWh_st_2022-08-25%00#00#00_et_2022-10-25%00#00#00.csv
new file mode 100644
index 000000000..ef38cae7a
--- /dev/null
+++ b/src/server/test/web/readingsData/expected_line_group_ri_15-20_mu_kWh_gu_kWh_st_2022-08-25%00#00#00_et_2022-10-25%00#00#00.csv
@@ -0,0 +1,62 @@
+reading,start time,end time
+348.794513115302,2022-08-25 00:00:00,2022-08-26 00:00:00
+325.335487927521,2022-08-26 00:00:00,2022-08-27 00:00:00
+350.844261732821,2022-08-27 00:00:00,2022-08-28 00:00:00
+346.552681763538,2022-08-28 00:00:00,2022-08-29 00:00:00
+327.551264151768,2022-08-29 00:00:00,2022-08-30 00:00:00
+357.828805192157,2022-08-30 00:00:00,2022-08-31 00:00:00
+343.819252746152,2022-08-31 00:00:00,2022-09-01 00:00:00
+335.943165771623,2022-09-01 00:00:00,2022-09-02 00:00:00
+362.616332313929,2022-09-02 00:00:00,2022-09-03 00:00:00
+363.578729309801,2022-09-03 00:00:00,2022-09-04 00:00:00
+347.690107833297,2022-09-04 00:00:00,2022-09-05 00:00:00
+324.240092235828,2022-09-05 00:00:00,2022-09-06 00:00:00
+353.489455153909,2022-09-06 00:00:00,2022-09-07 00:00:00
+354.904285564574,2022-09-07 00:00:00,2022-09-08 00:00:00
+341.083860398143,2022-09-08 00:00:00,2022-09-09 00:00:00
+351.460188445165,2022-09-09 00:00:00,2022-09-10 00:00:00
+346.368099747212,2022-09-10 00:00:00,2022-09-11 00:00:00
+374.84742698472,2022-09-11 00:00:00,2022-09-12 00:00:00
+347.707015282985,2022-09-12 00:00:00,2022-09-13 00:00:00
+357.591574862619,2022-09-13 00:00:00,2022-09-14 00:00:00
+336.674062166342,2022-09-14 00:00:00,2022-09-15 00:00:00
+354.424131702218,2022-09-15 00:00:00,2022-09-16 00:00:00
+340.125098534791,2022-09-16 00:00:00,2022-09-17 00:00:00
+359.153987353518,2022-09-17 00:00:00,2022-09-18 00:00:00
+361.521671854988,2022-09-18 00:00:00,2022-09-19 00:00:00
+343.808597486074,2022-09-19 00:00:00,2022-09-20 00:00:00
+380.434614234401,2022-09-20 00:00:00,2022-09-21 00:00:00
+337.849435998996,2022-09-21 00:00:00,2022-09-22 00:00:00
+363.848973304052,2022-09-22 00:00:00,2022-09-23 00:00:00
+334.110428522124,2022-09-23 00:00:00,2022-09-24 00:00:00
+333.50912536369,2022-09-24 00:00:00,2022-09-25 00:00:00
+355.300812033461,2022-09-25 00:00:00,2022-09-26 00:00:00
+338.586040975154,2022-09-26 00:00:00,2022-09-27 00:00:00
+335.924391070047,2022-09-27 00:00:00,2022-09-28 00:00:00
+349.927920483205,2022-09-28 00:00:00,2022-09-29 00:00:00
+361.319338083069,2022-09-29 00:00:00,2022-09-30 00:00:00
+350.936322621037,2022-09-30 00:00:00,2022-10-01 00:00:00
+343.436211742476,2022-10-01 00:00:00,2022-10-02 00:00:00
+351.265506924539,2022-10-02 00:00:00,2022-10-03 00:00:00
+337.377477729851,2022-10-03 00:00:00,2022-10-04 00:00:00
+350.903283933938,2022-10-04 00:00:00,2022-10-05 00:00:00
+345.408011235803,2022-10-05 00:00:00,2022-10-06 00:00:00
+353.277119143528,2022-10-06 00:00:00,2022-10-07 00:00:00
+361.448687730652,2022-10-07 00:00:00,2022-10-08 00:00:00
+343.421262208245,2022-10-08 00:00:00,2022-10-09 00:00:00
+323.360043071063,2022-10-09 00:00:00,2022-10-10 00:00:00
+346.260002783555,2022-10-10 00:00:00,2022-10-11 00:00:00
+342.24413314611,2022-10-11 00:00:00,2022-10-12 00:00:00
+361.728026545115,2022-10-12 00:00:00,2022-10-13 00:00:00
+354.316671661948,2022-10-13 00:00:00,2022-10-14 00:00:00
+348.542934941347,2022-10-14 00:00:00,2022-10-15 00:00:00
+337.04853103305,2022-10-15 00:00:00,2022-10-16 00:00:00
+344.294079615473,2022-10-16 00:00:00,2022-10-17 00:00:00
+352.400549048117,2022-10-17 00:00:00,2022-10-18 00:00:00
+343.793095714363,2022-10-18 00:00:00,2022-10-19 00:00:00
+331.968984841437,2022-10-19 00:00:00,2022-10-20 00:00:00
+351.114276403449,2022-10-20 00:00:00,2022-10-21 00:00:00
+357.774730659802,2022-10-21 00:00:00,2022-10-22 00:00:00
+338.930167323729,2022-10-22 00:00:00,2022-10-23 00:00:00
+350.990674111167,2022-10-23 00:00:00,2022-10-24 00:00:00
+368.855788132704,2022-10-24 00:00:00,2022-10-25 00:00:00
\ No newline at end of file
diff --git a/src/server/test/web/readingsLineGroupQuantity.js b/src/server/test/web/readingsLineGroupQuantity.js
index 61f03020d..88e59140a 100644
--- a/src/server/test/web/readingsLineGroupQuantity.js
+++ b/src/server/test/web/readingsLineGroupQuantity.js
@@ -12,7 +12,7 @@ const Unit = require('../../models/Unit');
 const { prepareTest,
     parseExpectedCsv,
     expectReadingToEqualExpected,
-    // createTimeString,
+    createTimeString,
     getUnitId,
     ETERNITY,
     // METER_ID,
@@ -42,8 +42,20 @@ mocha.describe('readings API', () => {
                 });
 
                 // Add LG2 here
-
-                // Add LG3 here
+ 
+                mocha.it('LG3: should have daily points for middle readings of 15 + 20 minute for a 61 day period and quantity units with kWh as kWh', async () => {
+                    // Load the data into the database
+                    await prepareTest(unitDatakWh, conversionDatakWh, meterDatakWhGroups, groupDatakWh);
+                    // Get the unit ID since the DB could use any value.
+                    const unitId = await getUnitId('kWh');
+                    // Load the expected response data from the corresponding csv file
+                    const expected = await parseExpectedCsv('src/server/test/web/readingsData/expected_line_group_ri_15-20_mu_kWh_gu_kWh_st_2022-08-25%00#00#00_et_2022-10-25%00#00#00.csv');
+                    // Create a request to the API for unbounded reading times and save the response
+                    const res = await chai.request(app).get(`/api/unitReadings/line/groups/${GROUP_ID}`)
+                        .query({ timeInterval: createTimeString('2022-08-25', '00:00:00', '2022-10-25', '00:00:00'), graphicUnitId: unitId });
+                    // Check that the API reading is equal to what it is expected to equal
+                    expectReadingToEqualExpected(res, expected, GROUP_ID);
+                });
 
                 // Add LG4 here