diff --git a/python/sglang/srt/environ.py b/python/sglang/srt/environ.py
index 51566ba3e..057e3b4f3 100644
--- a/python/sglang/srt/environ.py
+++ b/python/sglang/srt/environ.py
@@ -215,6 +215,7 @@ class Envs:
     SGLANG_EXPERT_LOCATION_UPDATER_LOG_METRICS = EnvBool(False)
     SGLANG_LOG_EXPERT_LOCATION_METADATA = EnvBool(False)
     SGLANG_EXPERT_DISTRIBUTION_RECORDER_DIR = EnvStr("/tmp")
+    SGLANG_EPLB_HEATMAP_COLLECTION_INTERVAL = EnvInt(0)
 
     # TBO
     SGLANG_TBO_DEBUG = EnvBool(False)
diff --git a/python/sglang/srt/eplb/expert_distribution.py b/python/sglang/srt/eplb/expert_distribution.py
index 10b50403d..bfec3802e 100644
--- a/python/sglang/srt/eplb/expert_distribution.py
+++ b/python/sglang/srt/eplb/expert_distribution.py
@@ -31,7 +31,7 @@ from sglang.srt.environ import envs
 from sglang.srt.metrics.collector import ExpertDispatchCollector
 from sglang.srt.model_executor.forward_batch_info import ForwardBatch
 from sglang.srt.server_args import ServerArgs
-from sglang.srt.utils import Withable, is_npu
+from sglang.srt.utils import Withable, get_int_env_var, is_npu
 
 _is_npu = is_npu()
 
@@ -716,11 +716,8 @@ class _UtilizationRateAccumulatorMixin(_Accumulator):
 
     def _collect_metrics_if_needed(self, gpu_physical_count: torch.Tensor):
         # sglang:eplb_gpu_physical_count metric is disabled if SGLANG_EPLB_HEATMAP_COLLECTION_INTERVAL <= 0
-        if (
-            envs.SGLANG_EPLB_HEATMAP_COLLECTION_INTERVAL > 0
-            and self._collection_counter % envs.SGLANG_EPLB_HEATMAP_COLLECTION_INTERVAL
-            == 0
-        ):
+        interval = get_int_env_var("SGLANG_EPLB_HEATMAP_COLLECTION_INTERVAL", 0)
+        if interval > 0 and self._collection_counter % interval == 0:
             for layer_idx in range(self._expert_location_metadata.num_layers):
                 count_of_layer = (
                     self._expert_dispatch_collector.eplb_gpu_physical_count.labels(