diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 115bffd45c32..e72d555f197a 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -643,15 +643,11 @@ jobs:
         env:
           BIGQUERY_CREDENTIALS_KEY: ${{ secrets.BIGQUERY_CREDENTIALS_KEY }}
           GCP_STORAGE_BUCKET: ${{ vars.GCP_STORAGE_BUCKET }}
-          BIGQUERY_TESTING_PROJECT_ID: ${{ vars.BIGQUERY_TESTING_PROJECT_ID }}
-          BIGQUERY_TESTING_PARENT_PROJECT_ID: ${{ vars.BIGQUERY_TESTING_PARENT_PROJECT_ID }}
         if: matrix.modules == 'plugin/trino-bigquery' && !contains(matrix.profile, 'cloud-tests-2') && (env.CI_SKIP_SECRETS_PRESENCE_CHECKS != '' || env.BIGQUERY_CREDENTIALS_KEY != '')
         run: |
           $MAVEN test ${MAVEN_TEST} -pl :trino-bigquery -Pcloud-tests-1 \
             -Dbigquery.credentials-key="${BIGQUERY_CREDENTIALS_KEY}" \
-            -Dtesting.gcp-storage-bucket="${GCP_STORAGE_BUCKET}" \
-            -Dtesting.bigquery-project-id="${BIGQUERY_TESTING_PROJECT_ID}" \
-            -Dtesting.bigquery-parent-project-id="${BIGQUERY_TESTING_PARENT_PROJECT_ID}"
+            -Dtesting.gcp-storage-bucket="${GCP_STORAGE_BUCKET}"
       - name: Cloud BigQuery Smoke Tests
         id: tests-bq-smoke
         env:
diff --git a/plugin/trino-bigquery/pom.xml b/plugin/trino-bigquery/pom.xml
index 818ac117a7e5..3273806736df 100644
--- a/plugin/trino-bigquery/pom.xml
+++ b/plugin/trino-bigquery/pom.xml
@@ -538,7 +538,6 @@
                                 <exclude>**/TestBigQueryCaseInsensitiveMappingWithCache.java</exclude>
                                 <exclude>**/TestBigQuery*FailureRecoveryTest.java</exclude>
                                 <exclude>**/TestBigQueryWithProxyTest.java</exclude>
-                                <exclude>**/TestBigQueryParentProjectId.java</exclude>
                             </excludes>
                         </configuration>
                     </plugin>
@@ -559,7 +558,6 @@
                         <configuration>
                             <includes>
                                 <include>**/TestBigQueryAvroConnectorTest.java</include>
-                                <include>**/TestBigQueryParentProjectId.java</include>
                             </includes>
                         </configuration>
                     </plugin>
diff --git a/plugin/trino-bigquery/src/main/java/io/trino/plugin/bigquery/BigQueryClient.java b/plugin/trino-bigquery/src/main/java/io/trino/plugin/bigquery/BigQueryClient.java
index bca723d6567d..5847e2d3f6de 100644
--- a/plugin/trino-bigquery/src/main/java/io/trino/plugin/bigquery/BigQueryClient.java
+++ b/plugin/trino-bigquery/src/main/java/io/trino/plugin/bigquery/BigQueryClient.java
@@ -287,7 +287,7 @@ public TableInfo getCachedTable(Duration viewExpiration, TableInfo remoteTableId
      */
     public String getParentProjectId()
     {
-        return Optional.ofNullable(bigQuery.getOptions().getQuotaProjectId()).orElse(bigQuery.getOptions().getProjectId());
+        return bigQuery.getOptions().getProjectId();
     }
 
     /**
diff --git a/plugin/trino-bigquery/src/main/java/io/trino/plugin/bigquery/CredentialsOptionsConfigurer.java b/plugin/trino-bigquery/src/main/java/io/trino/plugin/bigquery/CredentialsOptionsConfigurer.java
index d15dc1b14517..3ecce6bae351 100644
--- a/plugin/trino-bigquery/src/main/java/io/trino/plugin/bigquery/CredentialsOptionsConfigurer.java
+++ b/plugin/trino-bigquery/src/main/java/io/trino/plugin/bigquery/CredentialsOptionsConfigurer.java
@@ -31,13 +31,11 @@ public class CredentialsOptionsConfigurer
         implements BigQueryOptionsConfigurer
 {
     private final BigQueryCredentialsSupplier credentialsSupplier;
-    private final Optional<String> configProjectId;
     private final Optional<String> configParentProjectId;
 
     @Inject
     public CredentialsOptionsConfigurer(BigQueryConfig bigQueryConfig, BigQueryCredentialsSupplier credentialsSupplier)
     {
-        this.configProjectId = bigQueryConfig.getProjectId();
         this.configParentProjectId = bigQueryConfig.getParentProjectId();
         this.credentialsSupplier = requireNonNull(credentialsSupplier, "credentialsSupplier is null");
     }
@@ -46,11 +44,9 @@ public CredentialsOptionsConfigurer(BigQueryConfig bigQueryConfig, BigQueryCrede
     public BigQueryOptions.Builder configure(BigQueryOptions.Builder builder, ConnectorSession session)
     {
         Optional<Credentials> credentials = credentialsSupplier.getCredentials(session);
-        String projectId = resolveProjectId(configProjectId, credentials);
+        String parentProjectId = resolveProjectId(configParentProjectId, credentials);
         credentials.ifPresent(builder::setCredentials);
-        builder.setProjectId(projectId);
-        // Quota project id is different name for parent project id, both indicates project used for quota and billing purposes.
-        configParentProjectId.ifPresent(builder::setQuotaProjectId);
+        builder.setProjectId(parentProjectId);
         return builder;
     }
 
diff --git a/plugin/trino-bigquery/src/test/java/io/trino/plugin/bigquery/TestBigQueryParentProjectId.java b/plugin/trino-bigquery/src/test/java/io/trino/plugin/bigquery/TestBigQueryParentProjectId.java
deleted file mode 100644
index 45abd6ba92ea..000000000000
--- a/plugin/trino-bigquery/src/test/java/io/trino/plugin/bigquery/TestBigQueryParentProjectId.java
+++ /dev/null
@@ -1,60 +0,0 @@
-/*
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *     http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-package io.trino.plugin.bigquery;
-
-import com.google.common.collect.ImmutableList;
-import com.google.common.collect.ImmutableMap;
-import io.trino.testing.AbstractTestQueryFramework;
-import io.trino.testing.QueryRunner;
-import org.junit.jupiter.api.Test;
-
-import static io.trino.testing.TestingProperties.requiredNonEmptySystemProperty;
-import static io.trino.tpch.TpchTable.NATION;
-import static java.lang.String.format;
-import static org.assertj.core.api.Assertions.assertThat;
-
-class TestBigQueryParentProjectId
-        extends AbstractTestQueryFramework
-{
-    private final String testingProjectId;
-    private final String testingParentProjectId;
-
-    TestBigQueryParentProjectId()
-    {
-        testingProjectId = requiredNonEmptySystemProperty("testing.bigquery-project-id");
-        testingParentProjectId = requiredNonEmptySystemProperty("testing.bigquery-parent-project-id");
-    }
-
-    @Override
-    protected QueryRunner createQueryRunner()
-            throws Exception
-    {
-        return BigQueryQueryRunner.builder()
-                .setConnectorProperties(ImmutableMap.<String, String>builder()
-                        .put("bigquery.project-id", testingProjectId)
-                        .put("bigquery.parent-project-id", testingParentProjectId)
-                        .buildOrThrow())
-                .setInitialTables(ImmutableList.of(NATION))
-                .build();
-    }
-
-    @Test
-    void testQueriesWithParentProjectId()
-    {
-        assertThat(computeScalar("SELECT name FROM bigquery.tpch.nation WHERE nationkey = 0")).isEqualTo("ALGERIA");
-        assertThat(computeScalar("SELECT * FROM TABLE(bigquery.system.query(query => 'SELECT name FROM tpch.nation WHERE nationkey = 0'))")).isEqualTo("ALGERIA");
-        assertThat(computeScalar(format("SELECT * FROM TABLE(bigquery.system.query(query => 'SELECT name FROM %s.tpch.nation WHERE nationkey = 0'))", testingProjectId)))
-                .isEqualTo("ALGERIA");
-    }
-}